O which type of molecules, polar or nonpolar, dissolves in water

Answers

Answer 1

The type of molecules that dissolves in water is polar.

O which type of molecules mdissolves in water?

Polar molecules tend to dissolve in water more readily than nonpolar molecules. This phenomenon is often summarized by the phrase "like dissolves like." Water is a polar molecule, meaning it has an uneven distribution of charge due to its bent molecular structure. The oxygen atom in water is more electronegative than the hydrogen atoms, leading to a partial negative charge (δ-) on the oxygen and partial positive charges (δ+) on the hydrogen atoms.

Polar molecules have their own partial charges, which can interact with the charges on water molecules through a process called hydrogen bonding. This interaction allows polar molecules to mix well with water and become surrounded by water molecules, forming a solution.

Nonpolar molecules, on the other hand, lack significant partial charges and cannot form strong hydrogen bonds with water molecules. As a result, nonpolar molecules do not dissolve as readily in water. Instead, they tend to aggregate together and exclude water molecules, leading to poor solubility in water.

Examples of polar molecules that dissolve well in water include substances like salts, sugars, and many types of organic molecules containing polar functional groups (such as alcohols and acids). Nonpolar molecules like oils, fats, and hydrocarbons have lower solubility in water and often separate from water to form distinct phases.

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Answer 2

Polar molecules dissolve in water because they can interact with water's polar nature through dipole-dipole interactions and hydrogen bonding. Nonpolar molecules do not dissolve well in water, as they lack the polar characteristics needed to interact with water molecules. This can be remembered by the phrase 'like dissolves like'.

Water is a polar molecule, which means it has a partial positive charge at one end and a partial negative charge at the other due to the unequal sharing of electrons between the hydrogen and oxygen atoms. This characteristic allows water to dissolve other polar substances through dipole-dipole interactions and hydrogen bonding.

Therefore, polar molecules tend to dissolve in water because they can interact with water's polar nature. Nonpolar molecules, on the other hand, do not dissolve well in water because there is no charge for them to interact with, and they cannot form significant interactions with the water molecules. This concept is commonly summarized by the phrase 'like dissolves like,' meaning that polar solvents like water are good at dissolving other polar substances, while nonpolar solvents are more suited for dissolving nonpolar substances.

Related Questions

Are Si valence electrons shared?

Are C valence electrons shared?

Answers

Answer:

Explanation:

Si has atomic number 14 so the electronic configuration 2,8,4

Final answer:

Valence electrons of Si and C are shared in covalent bonding.

Explanation:

In a covalent bond, valence electrons are shared between atoms. The number of valence electrons an element has determines how many covalent bonds it can form. For example, carbon (C) has 4 valence electrons, so in a covalent bond, these 4 electrons are shared with other atoms.

Similarly, silicon (Si) also forms covalent bonds by sharing its valence electrons. Silicon has 4 valence electrons like carbon, so it can form 4 covalent bonds as well.

Which would have the highest concentration of h+ ions acetic acid or sodium hydroxide?

Answers

Obviously it will be acetic acid. Because it is an acid which releases H+ ion.

[tex]CH_3COOH ----\ \textgreater \ CH_3COO^- + H^+[/tex]

while:

What is the percentage error for a mass measurement of 17.7g, given that the correct value is 21.2g?

Answers

16.5% First, determine the total error by subtracting the accepted value from the value you measured. e = 17.7 - 21.2 = -3.5 Then divide the error by the accepted value. e = -3.5/21.2 = -0.165 = -16.5% Sometimes it's useful to keep track of if the error is positive, or negative. But for this case, we'll just go with the positive percentage. So the answer is 16.5% Key thing to remember. You divide by the CORRECT value to get the percentage.

Final answer:

The percentage error for the mass measurement is 16.5%.

Explanation:

To calculate the percentage error, we use the formula:

Percentage Error = (|Measured Value - Actual Value| / Actual Value) x 100%

In this case, the measured value is 17.7g and the actual value is 21.2g. Plugging in these values into the formula, we get:

Percentage Error = (|17.7g - 21.2g| / 21.2g) x 100% = |3.5g| / 21.2g x 100%

Since the absolute value of 3.5 is equal to 3.5, the percentage error is:

Percentage Error = (3.5g / 21.2g) x 100% = 16.5%

How many grams of oxygen are in 50.00 g of sucrose? Show work please

Answers

You need the molercular mass of Sucrose.

You can either search the molecular formula of Sucrose and calculate the molecular mass, or search directly the molecular mass.

Here you have both:

Molecular mass of sucrose: 342.30 g / mol

Chemical formula of sucrose: C12 H22 O11 (if you want to just must multiply the number of each atom by its atomic mass to get the molecular mass).

Calculate the number of grams of O in that molecule:

O: 11 * 16.00 g/mol = 176.0 g of O.

Now use proportions:

176 g O / 342.30 g sucrose = x / 50.00 g sucrose

=> x = 50.00 g sucrose * 176.0 g O / 342.30 g sucrose =25.71 g O.

Answer: 25.17 g

Which change can be easily be reversed? question 23 options: both a physical and chemical change chemical change physical change neither a physical or chemical change?

Answers

Answer:

Physical change

Explanation:

A physical change is a reversible change in the physical properties of a substance.

Let’s look at an example:

Water. Water is made up of 2 hydrogen atoms and one oxygen atoms, H2O.

When the temperature of water decreases, the particles slow down and the liquid turns to ice. When it turns to ice, is it still H2O? Yes! When water changes states, it’s just a physical change. The chemical properties of water DO NOT change!! It’s physical change because when you melt ice, it can goes back to its original form: liquid (water). It can be reversed!

I really hope it helped! If so, please mark brainliest! Thanks! Have a great day! :)

Here are some examples of ways to cause physical changes:

Final answer:

The change that can be easily reversed is a physical change, because it doesn't alter a substance's basic identity - it just changes its form. This is unlike chemical changes, which fundamentally alter a substance and thus cannot be easily reversed.

Explanation:

The change that can be easily reversed is a physical change. This is because physical changes don't alter the basic identity of the substance - they just change its form. For example, when you melt ice into water, that's a physical change because the water is still H2O, just in a different state. If you put it back in the freezer, it can change back into ice. This is unlike a chemical change, such as burning wood into ash and smoke. In this case, the wood can't be changed back into its original form because its chemical properties have been altered.

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The average density of whole milk is 1.034 g cm ^3. What is it’s density in lb gal ^-1?

Answers

you will need to look up some conversions of gram to lbs

1 gram = 0.00220462262 pounds

1 mL = 0.000264172052 US gallons

and mL to gal

1.035 g / cm^3 x 0.0022 lbs / 1 gram x 1 mL / 0.000264 gal

Answer:

The average density of whole milk is 8.6291 lbs/gal.

Explanation:

The average density of whole milk is [tex]1.034 g/cm ^3[/tex].

1 g = 0.00220462 lbs

[tex]1 cm^3=0.000264172 gallons[/tex]

[tex]1.034 g/cm ^3=\frac{1.034\times 0.00220462 lbs}{1\times 0.000264172 gal}[/tex]

[tex]=8.6291 lbs/gal[/tex]

The average density of whole milk is 8.6291 lbs/gal.

Chemistry Help Please? 20 points?
Since each element produces a characteristic spectrum, what can you conclude about the location of the electron?

Answers

the electron rides around the nucleus on an electromagnetic wave that the nucleus has formed

Final answer:

The characteristic spectrum an element produces indicates the location of its electron as each unique spectral line indicates the electron's movement between specific energy levels or shells in the atom.

Explanation:

The location of an electron can be determined based on the spectrum that an element produces. When an electron absorbs energy, it moves to a higher energy level or shell, also known as an excited state. When it falls back to its original energy state, it emits energy in the form of electromagnetic radiation, producing a unique spectral line. This spectral line or pattern is characteristic of the element, and it can hint at an electron's location in a specific energy level or shell around the nucleus.

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When an electric current passes through liquid water, hydrogen gas passes accumulates at one electrode and oxygen accumulates at the other. Which of the following is true? A) A physical change has occurred, with energy is being absorbed. B) A chemical change has occurred, with energy being given off. C) A physical change has occurred, with energy being given off. D) A chemical change has occurred, with energy being absorbed.

Answers

I believe the correct answer is option D. When an electric current passes through liquid water, a chemical change has occurred, with energy being absorbed. This process is called electrolysis of water. It is a chemical decomposition of water using electricity as the energy source. Any chemical reaction involves a chemical change.

Answer: Option (D) is the correct answer.

Explanation:

A chemical change is defined as the change which occurs due to change in chemical composition of a substance. A chemical change always leads to the formation of a new compound or substance.

For example, when an electric current passes through liquid water, hydrogen gas passes accumulates at one electrode and oxygen accumulates at the other.

Since, atoms of water are separating out. As a result, chemical properties will change. This means that a chemical change has occurred.

Also, bonds of water, ([tex]H_{2}O[/tex]) are breaking down. Hence, energy will be absorbed to break the bonds.

Whereas energy is always released upon formation of bonds.

Thus, we can conclude that the statement a chemical change has occurred, with energy being absorbed, is true.

Which type of change occurs when the electrons of two atoms interact to form an atomic bond?

Answers

The answer your looking for in chemical change.

Carl had four metal blocks.. Each block was a different type of metal, but it had the same size and volume. All four blocks were weighed on a balance and their masses recorded in the table below. Which one of these metals is the least dense?
Block 1: 65 grams

Block 2: 32 grams

Block 3: 100 grams

Block 4: 79 grams

options:

Block 1

Block 2

Block 3

Block 4

Answers

Block 2 was the least dense. I beleive the formula is volume over mass or mass over volume.

Answer is: Block 2 is the least dense.

d(metal) = m(metal) ÷ V(metal).

Volume is the same for all metals, so density only depends on mass of the block of the metal.

Smaller the mass of the block, smaller is the density:

d(block 1) = m(block 1) ÷ V.

d(block 1) = 65 g/V.

d(block 2) = 32 g/V.

d(block 3) = 100 g/V.

d(block 4) = 79 g/V.

What is the smallest particle that has all the properties of a specific element?

Answers

An atom is the smallest particle that has all the properties of a specific element.

I think the correct answer was
"An Atom"

What is the mass of 0.28 mol of iron

Answers

Iron=55.85g/mol
x=mass of .28mol of Fe
55.85g Fe/1 mole Fe=x/.28 mole Fe
(55.85gFe)(.28 mole Fe)=(1 mole Fe)(x)
15.64g /mol Fe=x

The mass of 0.28 mol of iron is 15.638 grams.

To find the mass of 0.28 mol of iron, we need to use the molar mass of iron. The molar mass of iron, as given in the periodic table, is 55.85 g/mol. This means that 1 mole of iron weighs 55.85 grams.

Step-by-Step Calculation:

1. Find the molar mass of iron:

According to the periodic table, the molar mass of iron (Fe) is 55.85 g/mol.

2. Calculate the mass of 0.28 mol of iron:

We will use the formula:Mass = Number of moles × Molar mass

So,

Mass = 0.28 mol × 55.85 g/molMass = 15.638 g

Therefore, the mass of 0.28 mol of iron is 15.638 grams.

Which of the subatomic particles is responsible for the chemical behavior of a given atom?

Answers

the electrons determine chemical behavior

Which is an aspect of the kinetic-molecular theory and can be used to explain the behavior of plasmas?

Answers

Particle exchange energy though elastic collision , hope this helps .

Particles move independently of one another and are widely spaced.

What is the substance produced by iron reacting with oxygen in the air?

Answers

The substance produced by iron reacting with oxygen in the air is rust.

What is the classification for this polynomial 3g^2?

Answers

it is a monomial!!!!!1

what tools can scientists use to measure the volume of liquid

Answers

Beakers, Erlenmeyer flasks, graduated cylinders, pipets, burets and volumetric flasks.

Graduated cylinder is one of them

You have a 28.2-g sample of a metal heated to 95.2°c. you drop it in a calorimeter with 100. g of water at 25.1°c. the final temperature of the water is 31.0°c. assuming no heat loss to the surroundings nor the calorimeter, calculate the heat capacity of the metal.

Answers

The heat lost by the metal should be equal to the heat gained by the water. We know that the heat capacity of water is simply 4.186 J / g °C. Therefore:

100 g * 4.186 J / g °C * (31°C – 25.1°C) = 28.2 g * Cp * (95.2°C - 31°C)

Cp = 1.36 J / g °C

How many molecules are contained in 1.30 mol O2
Answer in units of molec

How many molecules are in 1.70 mol He
Answer in units of molec

How many molecules are in 0.0800 mol NH3
Answer in units of molec

How many molecules are in 15.6 g NO2
Answer in units of molec

What is the mass of 3.64 mol of the element iron (fe)
Answer in units of g

Answers

Final answer:

To find the number of molecules in a given amount of substance, use Avogadro's number. The mass of a given number of moles can be calculated by multiplying the number of moles by the molar mass.

Explanation:

To determine the number of molecules in a given amount of substance, we can use Avogadro's number. Avogadro's number is approximately 6.022 × 1023 and represents the number of particles in one mole of a substance.

For example, in 1.30 mol of O2, there would be 1.30 × 6.022 × 1023 molecules of O2.

To find the number of molecules in the other given amounts, you can use the same approach.

The mass of 3.64 mol of iron (Fe) can be calculated by multiplying the number of moles by the molar mass of iron. The molar mass of iron is approximately 55.85 g/mol, so the mass of 3.64 mol of iron would be 3.64 × 55.85 g.

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An atom with one valence electron combines with an atom with seven valence electrons.

what is likely to happen to the atom with one valence electron?

Answers

The atom with one valence electron is likely to lose its electron to form an ion with a +1 charge.

The principle behind this is simple. Atoms wish to have a stable electronic configuration, which requires that their valence shell be complete. If an atom has only one valence electron, then in order to achieve stable configuration, it is easier for it to get rid of the electron and move back to its last completed shell instead of trying to gain 7 electrons to complete the current valence shell.

PLZZ HELP ME I'M STUCK!!!!!! 90pts I'M DESPERATE!!!!!!!!!!!

Describe what would happen to both air temperature and soil temperature if cold weather were to pass through the area.

What can you learn about soil and air from looking at your graphs and your answers above?

What does the data mean for people involved in farming and agriculture?

Answers

Activity 50.1 What Factors Determine Climate?
The map on the next page shows a hypothetical continent on Earth. Assume that biomes and climates on this continent are produced by the same factors that produce biomes and climates on Earth’s real continents. Use this map to answer the questions in this activity. Where needed, draw the required features directly on the map.
1. On the map of the hypothetical continent, indicate the location(s) of these types of biomes: Use the information in Figures 50.10, 50.18, and 50.19 of Biology, 7th edition, to answer these questions.
a. Tropical rainforest(s)In general, tropical rainforests lie between the equator and about 25° north and south latitudes, where the annual mean precipitation exceeds 150 cm and the annual mean temperature exceeds about 23°C.
b. Temperate coastal desert(s)Temperate coastal deserts tend to lie between 25° and 45° north and south latitudes, where the general direction of the trade winds is away from the coast and the annual mean precipitation is less than 40 cm.
c. Temperate deciduous forest(s)Temperate deciduous forests tend to lie between 30° and 60° north and south latitudes, where the annual mean precipitation exceeds 102 cm and the annual mean temperature exceeds about 11°C.
To do this, draw approximate boundary lines to delimit each biome type, and then label each delimited area with the type of biome it contains.
2. Atmospheric circulation is driven primarily by differential heating of Earth’s surface. More heat is delivered near the equator than near the poles. This seems to explain the northward and southward flows of air. What introduces the eastward and westward components into air movement? (Hint: Review Figure 50.10, Global Air Circulation and Precipitation Patterns and Global Wind Patterns, and its associated text in Biology, 7th edition.)As indicated in Figure 50.10, “as Earth rotates on its axis, land near the equator moves faster than that at the poles, deflecting the winds from the vertical paths” introduced by differential heating. This deflection creates more easterly flow patterns between the equator and 30° north and south latitudes and more westerly flow patterns between 30° and 60° north and south latitudes.

A hypothetical continent3. Use your understanding of global air circulation and wind patterns to draw arrows on the map of the hypothetical continent indicating:
a. The direction of prevailing winds at points W1, W2, and W3b. The direction of flow of surface currents in the ocean at points O1, O2, and O3
(Hint: Note on the map in Figure 50.10 that surface currents in the ocean follow the major wind systems at the surface.)
4. Are the surface winds at the given points warming or cooling as they move? Explain.
Point on the mapAre the winds warming or cooling as they move?
Explanationa. X1

The winds are warming.The general wind pattern in this area is from the south west (westerlies). These winds tend to pick up moisture as they move from 30° to 60° N latitude.b. X2

The winds in this region tend to be cooling. This region tends to be under the influence of the cooling easterly winds. These winds tend to pick up moisture as they flow from 30° to 0° N latitude.c. X3

The winds are warming. The general wind pattern in this region is westerly. These winds tend to pick up moisture as they flow from 30° to 60° S latitude.
5. What biomes or vegetation types would most likely be found at the given points? (Assume all are at sea level or low altitudes.)
Point on the mapMost likely type of biome or vegetation
A

This region would most likely contain coniferous forest
B

This region would most likely be a temperate grassland which will graduate into temperate deciduous forest as it moves east.
C

This could be a region of chapparal which would graduate into tropical forest as one moves south

D
This is most likely a region of tropical rainforest.

I have the same assignment rn witht he graph but i only have 4 points plotted and connected by lines am i doing it wrong plzzz???

The air temperature would drop quickly compared to the soil because the difference between solid and gas. But the ground will stay cooler longer than the air because it contains it better than the air.

In 1912, chemist Fritz Haber developed a process that combined nitrogen from the air with hydrogen at high temperatures and pressures to make ammonia. Specifically, the process involved combining one molecule of nitrogen gas (N2) with three molecules of hydrogen gas (H2) to get two molecules of ammonia (NH3). If you write this process in a symbol format, it looks like this:

N2 + 3H2 → 2NH3

I wanted to ask about the number of atoms that are involved. I got an answer of 8 atoms before and after, but I wasn't completely sure.

Answers

Tbh im pretty sure its 8 but dont rely on me.

A student has a sample of a mineral that is too big to fit in a graduated cylinder. The density of the sample is known. How can the student determine the volume of the sample?

Answers

The formula for density is given as:

density = mass / volume

So given the density and the mass, we can get the volume. The mass can simply be measured using a weighing scale therefore the student can now determine the volume by rearranging the formula:

volume = mass / density

This is a model of a lithium atom. How likely is it that this atom would want to bond with another atom to fill it's outer shell?

Answers

I'd say extremely likely. Lithium is in group 1 - they're all very reactive. Although it's the least reactive of the group, it's still very reaction and therefore very likely to react to have a full outer shell. It would bond through ionic bonding, transfer its outer electron (very easily).

Hope this helps

The Answer Choices to the Question Is

A:This atom is very likely to bond with another atom.

B:This atom is only slightly likely to bond with another atom

C:This atom is not likely at all to bond with another atom.

And I Think The Answer Is A

total kinetic energy of all the atoms that make up a sample of matter, would that be heat or mechanical????

Answers

Generally speaking mechanical energy is energy which physically moves (the object), while the thermal energy is energy from the movement of atoms.
Basically temperature is a measurement of atomic movement (doesn't move object as a whole).
Hence heat.

Answer:

Mechanical energy

Explanation:

Mechanical energy is a result of kinetic energy plus potential energy of an atom due to the motion of electrons. As the electrons move away from the nucleus, that is to the outer orbitals the potential energy increases, and as the electrons move inward towards the nucleus the kinetic energy increases.

Does water boil at the same temperature everywhere

Answers

No, Water boils faster at higher altitudes.

Answer:

No, Water boils faster at higher altitudes.

Explanation:

Which of the following is not a base

A. KOH
B. NH3
C. NaOH
D. H3C6H5O7

Answers

The answer is H₃C₆H₅O₇ (OPTION D).

In essence, the question is asking which of the options is an acid or a neutral compound; thus not a base. A base is a compound that accepts free hydrogen ions while in aqueous solution and as such they usually lack hydrogen ions that can be released in solution. If you ionize all the compounds/molecules above, the only on that has free hydrogen ions is OPTION D (which is an organic acid and not a base).

is helium is lightest monatomic element chemical properties

Answers

Hydrogen is the only lighter element

Helium is the second lightest element and the lightest monatomic element in its natural state. It is part of the noble gases, inert and does not react with other elements, and has various applications due to its low density.

Helium is a colorless, odorless, and tasteless element that is found naturally in the gas state. It is known for being the second most abundant element in the universe and the lightest monatomic element. A helium atom consists of a nucleus with 2 protons and usually 2 neutrons and is enveloped by 2 electrons, resulting in a complete valence shell making it chemically inert. Helium has an atomic number of 2, making it the second element in the periodic table right after hydrogen, which is the first and simplest element having only one proton and one electron and generally forms H₂ molecules. Contrary to helium, hydrogen is the lightest gas overall since it forms diatomic molecules. Nonetheless, if we consider single atoms, then helium atoms are indeed heavier than hydrogen atoms.

Helium's unique characteristics such as its low boiling point, low density, and lack of chemical reactivity arise from its filled electron shell, where no further electrons can be added. These properties make helium a noble gas and it is placed at the top of this group in the periodic table. Its low density of only 0.164 g/L at 25°C and 1 atm pressure also makes helium ideal for applications such as filling balloons.

If the average salinity of seawater is 35ppt, how many grams of dissolved salts will 500g of seawater contain?

Answers

17.5 g 35 ppt stands for 35 parts per thousand. So let's convert that to a decimal number by taking 35 and dividing by 1000. 35/1000 = 0.035 Now multiply that number by the number of grams of seawater you have. So 0.035 * 500 g = 17.5 g So you have 17.5 grams of salt when you have 500 grams of seawater.

Final answer:

Given an average seawater salinity of 35ppt (parts per thousand), the amount of dissolved salts in 500g of seawater is calculated to be 17.5g.

Explanation:

The average salinity of seawater is given as 35ppt, which stands for parts per thousand. This means that for every 1000g of seawater, there are 35g of dissolved salts. Therefore, to find out how many grams of dissolved salts are in 500g of seawater, we need to set up a proportion.

Start by writing the given proportion: 1,000g seawater / 35g salt = 500g seawater / X g salt. Solving for X gives us the equivalent grams of salt in 500g water. X is calculated by cross-multiplying 35g by 500g and dividing the result by 1,000g. The calculation should look like this: (35g * 500g) / 1,000g = 17.5g.

So, 500g of seawater contains 17.5g of dissolved salts.

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How many helium atoms are there in a helium blimp containing 537 kg of helium? express the number of helium atoms numerically?

Answers

To determine the number of helium atoms present in a given mass of helium, we first convert the mass into number of moles by dividing the atomic mass of helium which is 4 grams per mole. Then, we multiply the Avogadro's number which represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. We do as follows:

537 kg He ( 1000 g / 1 kg ) ( 1 mol / 4 g ) ( 6.022 x 10^23 atom / mol ) = 8.08x10^28 atoms He

Final answer:

To find the number of helium atoms in a blimp with 537 kg of helium, first, calculate the mass of one helium atom. Then determine the number of atoms in 1 kg of helium, and multiply by 537 to get the total number of helium atoms in the blimp.

Explanation:

To calculate the number of helium atoms in a helium blimp containing 537 kg of helium, we must first know the mass of a single helium atom. A helium atom contains 2 protons, 2 neutrons, and 2 electrons. The mass of a helium atom can be approximated by considering the mass of the protons and neutrons, as the mass of electrons is negligible. This gives us a mass of about 4 atomic mass units (u) per helium atom. Since 1 u is approximately 1.66 × 10-27 kg, the mass of a helium atom is 4 × 1.66 × 10-27 kg.

To find the number of atoms in 1 kg of helium, you can divide 1 kg by the mass of one helium atom. Then, for 537 kg, multiply the number of atoms in 1 kg by 537. The Avogadro's number (6.022 × 1023 atoms/mol) is used as a conversion factor to convert moles of helium to atoms of helium. Conversely, to convert atoms to moles, you would divide the number of atoms by Avogadro's number, not multiply as stated incorrectly by the friend.

Here is the calculation in steps:

Calculate the mass of one helium atom: Mass of helium atom = 4 × 1.66 × 10-27 kg.Find the number of atoms in 1 kg of helium: Number of atoms in 1 kg = 1 kg / Mass of one helium atom.Find the number of atoms in 537 kg of helium: Number of atoms in 537 kg = Number of atoms in 1 kg × 537.

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