How does litmus paper identify a base

Answer:

Floods, hurricanes, and tornadoes are all aspects of weather and not climate because climate is more related to temperature. The definition of climate is "the weather conditions prevailing in an area in general or over a long period." Floods, hurricanes, and tornadoes are not aspects of climate, they are aspects of weather.

Explanation:

Floods, hurricanes, and tornadoes are considered weather events due to their immediate and short-term nature, while climate refers to the long-term average weather patterns in a region. Weather involves day-to-day atmospheric conditions, leading to various forms of severe weather, whereas climate encompasses the general weather trends and conditions over a prolonged period.

Floods, hurricanes, and tornadoes are categorized as aspects of weather rather than climate due to their short-term occurrence and direct impact on specific regions over a brief period. Weather involves immediate atmospheric conditions, such as precipitation, wind speeds, and temperature, which can lead to the development of these extreme weather events. In contrast, climate describes the average weather conditions in a particular area over a long period, typically years or decades, encompassing patterns and trends rather than individual or short-term events. For instance, the differential heating of the Earth's surface by the Sun, which significantly influences weather patterns, can lead to the formation of severe weather phenomena like tornadoes, characterized by their funnel-shaped clouds and powerful winds, and hurricanes, known for their high winds and heavy rains forming over warm ocean waters.

The distinction between weather and climate is crucial for understanding how external forces like the Sun's heating influence Earth's atmospheric conditions, leading to immediate weather conditions and longer-term climatic trends. While floods, hurricanes, and tornadoes manifest as a result of these conditions, representing the variability and extremity of weather, climate refers to the broader, more consistent patterns that define a region's average atmospheric conditions over time.

Answer:

1.1 M

Explanation:

I git it wrong and it gave me the answer

The molarity of the final solution i.e.  sodium hydroxide solution at the time of combining should be 1.1.

Since

Molarity (M1) = 0.60 M

Volume ( V1) = 2.0 L

Molarity ( M2 ) = 3.0 M

Volume ( V2) = 495 ml = 0.495 L

We know that

Moles = Molarity * volume in L

Now

Moles of 1st solution = n1 = M1 * V1

So

n1 = 0.60 * 2.0 = 1.2 mol

Now

Moles of 2nd solution = n2 = M2 * V2

So, n2 = 3 * 0.495 = 1.485 mol

Now

Total moles in final solution = n = n1 + n2

So,

n = 1.2 + 1.485 = 2.685 mol

Now

Total volume is

= V = V1 + V2

= 2.0 +0.495

= 2.495 L

Now

Molarity of final solution = n / V

= 2.685 / 2.495

= 1.0761 M

= 1.1

hence, The molarity of the final solution is 1.1.

Learn more about molarity here; https://brainly.com/question/13011592

Answer:

b

Explanation:

Answer:

1. 44.11 g

2. 36.03 g

3. 8.08 g

4. 81.7%

5. 18.3%

Explanation:

1. 12.01+12.01+12.01+1.01+1.01+1.01+1.01+1.01+1.01+1.01+1.01=44.11

2. 12.01×3= 36.03

3. 1.01×8= 8.08

4.(36.03/44.11)×100= 81.7%

5. (8.08/44.11)×100= 18.3%

The molar mass of C3H8 is 44.094 g/mol. The carbon percent composition is 81.72% and the hydrogen percent composition is 18.28%.

The molar mass of C3H8 (propane) can be calculated by adding up the atomic masses of the atoms in the molecule. Carbon has a molar mass of 12.01 g/mol, and there are 3 carbon atoms in C3H8, so the total molar mass for carbon atoms is 12.01 g/mol x 3 = 36.03 g/mol. Hydrogen has a molar mass of 1.008 g/mol, and there are 8 hydrogen atoms in C3H8, so the total molar mass for hydrogen atoms is 1.008 g/mol x 8 = 8.064 g/mol.

The percent composition can be calculated by dividing the molar mass for each element by the total molar mass of C3H8. The carbon percent composition is (36.03 g/mol / 44.094 g/mol) x 100% = 81.72%. The hydrogen percent composition is (8.064 g/mol / 44.094 g/mol) x 100% = 18.28%.

Answer:

Explanation:

Hi there,

To get started, let's first observe our rate law:

[tex]R=k[A]^2[B]^2[/tex]     we typically use square brackets [x] for chemistry kinetics, because they specifically tell us we are dealing with concentrations.

This rate law is in fourth-order, because the concentrations powers add up to 4. We are not told the unit of time for this prompt (unless you know it), so I just assumed the time unit to be "time."

To calculate the reaction rate, we simply plug in the concentration of A and B into the rate law. k is the rate constant and stays the same for an individual reaction.

[tex]R=(0.1 \ M^{-3}*time^{-1})[1 \ M]^2[2 \ M]^2=0.4 \ M/time[/tex]

Thus, the rate of reaction with those concentrations is 0.4 M/time.

Notice, the rate constant does in fact have units of it own. The unit for k can be calculated by knowing that:

If you liked this solution, leave it as Brainliest Answer and give a Rating!

The rate of reaction with those concentrations is 0.4 M/time.

The reaction rate is said to be the decrease in the concentration of the reactant or the increase in the concentration of the product per unit of time. Reaction rate measures how fast the reactant is used up or how fast the product is formed.

For a given reaction like

[tex]Mg(s) + O_2(g)[/tex] → [tex]2MgO(aq)[/tex]

The reaction rate is derived by measuring how fast the concentration of Mg and [tex]O_2[/tex] decreases or how fast the concentration of MgO increases. Mathematically reaction rate can be expressed as

Reaction rate = Δconcentration/ ΔTime

Rate=[tex]k(a)^2(b)^2[/tex] We typically use square brackets [x] for chemistry kinetics, because they specifically tell us we are dealing with concentrations.

This rate law is in fourth-order because the concentration powers add up to 4. We are not told the unit of time for this prompt (unless you know it), so I just assumed the time unit to be "time."

To calculate the reaction rate, we simply plug the concentration of A and B into the rate law. k is the rate constant and stays the same for an individual reaction.

Thus, the rate of reaction with those concentrations is 0.4 M/time.

Learn more about the rate of reaction here:

https://brainly.com/question/15766136

#SPJ5

Answer:

0.498 kg

Explanation:

Answer:

The first answer is 498

The second answer is 0.498

Explanation:

Answer:

1 and 2 only

Explanation: These will make a bad impact on water.

Answer:

4.87g

Explanation:

Step 1:

Data obtained from the question. This includes the following:

Mass of solution = 0.35kg

Molality = 0.238 m

Mass of NaCl =..?

Step 2:

Determination of the number of mole of NaCl in the solution.

Molality of a solution is simply defined as the mole of solute per unit kg of the solvent. It is given as:

Molality = mol of solute /mass of solvent (kg)

With the above formula, we calculate the mole of NaCl present in the solution as follow:

Molality = mol of solute /mass of solvent (kg)

0.238 = mol of NaCl /0.35

Cross multiply

mol of NaCl = 0.238 x 0.35

mol of NaCl = 0.0833 mol

Step 3:

Determination of the mass of NaCl in 0.0833 mol of NaCl.

This is illustrated below:

Number of mole NaCl = 0.0833 mol

Molar Mass of NaCl = 23 + 35.5 = 58.5g/mol

Mass of NaCl =..?

Mass = number of mole x molar Mass

Mass of NaCl = 0.0833 x 58.5

Mass of NaCl = 4.87g

Therefore, 4.87g of NaCl is contained in the solution.

Answer:

9.85g/cm³

Explanation:

Mass = 19.7g

Volume = 2cm³

Density (ρ) = mass (m) of a substance / volume (v) it occupies

ρ = mass / volume

ρ = 19.7 / 2

ρ = 9.85g/cm³

Answer:

9.85g/cm3

Explanation:

The following data were obtained from the question:

Mass = 19.7g

Volume = 2cm3

Density =..?

Density of a substance is simply defined as the mass per unit volume. It is represented mathematically by:

Density = Mass /volume

With the above formula we can find the density of the acrylic as follow:

Density = 19.7g/2cm3

Density = 9.85g/cm3

On top of Mt. Yale in Colorado (elevation 14,202 feet), you step on a scale and weigh 183 pounds, using the same scale in New Orleans (elevation 4 feet) you would weigh more than on top of Mt. Yale.

Hence, option A is correct.

Pound, unit of avoirdupois weight, equal to 16 ounces, 7,000 grains, or 0.45359237 kg, and of troy and apothecaries' weight, equal to 12 ounces, 5,760 grains, or 0.3732417216 kg. The Roman ancestor of the modern pound, the libra, is the source of the abbreviation lb.

183 is to 14202 as x is to 4

183/14202 = x/4

14202x = 183(4)

x = 183(4)/14202

x = 0.0515 pounds

Hence, option A is correct.

Learn more about  pounds here:

https://brainly.com/question/27994061

#SPJ2

Answer:

the answer is Fe + 02 - Fe203

Explanation:

Answer:

B

Explanation:

Correct on edge

Answer:

What do you need help with

Explanation:

Plasma forms when atoms break down to form free protons and electrons (option 4)

Plasma is the fourth state of matter, after solids, liquids, and gases. It is characterized by the presence of a significant portion of charged particles in any combination of ions or electrons.

It is the most abundant form of ordinary matter in the universe, mostly in stars (including the Sun), but also dominating the rarefied intracluster medium and intergalactic medium. Plasma can be artificially generated by heating a neutral gas or subjecting it to a strong electromagnetic field.

Learn about plasma here https://brainly.com/question/950535

#SPJ3

Answer:

D. Incinerating or incineration

Explanation:

Burning trash to reduce the amount of waste on land is called incineration.

Answer: How far did you hold the magnet from the paper clip. How heavy is each paper clip.

Explanation: Close= Stronger Magnetism, just because he has more and is closer doesn't make his stronger than the other students. Weight also changes this.

Hope this helps.

Answer:

New volume of the balloon at sea level (V1) = 4.25 L

Explanation:

Given:

Present volume (V) = 5 L

Present pressure (P) = 0.85 atm

Pressure at sea level (P1) = 1 atm

Find:

New volume of the balloon at sea level (V1) = ?

Computation:

According to  Boyles law:

⇒ P × V = P1 × V1

⇒ 0.85 × 5 = 1 × V1

⇒ 4.25 L = V1

New volume of the balloon at sea level (V1) = 4.25 L

Answer:

In creating music, sound waves from the singer in the form of vibrational energy strikes and is converted into electrical signals in the microphone.

These electrical signals are converted to a magnetic field and then stored on an analogue recorder in the form of magnetic domains.

When the song is replayed, these magnetic domains create a changing magnetic field which produces electrical signal.

The electrical signal is sent to the voice coil in the speaker, where it is converted to a magnetic field.

The changing magnetic field pulls and push on the diaphragm which sets the air around it into vibration.

This vibration becomes sound wave that strikes our ears when we listen to these sounds.

Answer:

%yield of NH₃ = 30%

Explanation:

Actual yield of NH₃ = 40.8g

Theoretical yield = ?

Equation of reaction

N₂ + 3H₂ → 2NH₃

Molar mass of NH₃ = 17g/mol

Molarmass of N = 14.00

2 molecules of N = 2 * 14.00 = 28g/mol

Number of moles = mass / molar mass

Mass = number of moles * molar mass

Mass = 1 * 28.00 = 28g of N₂ (the number of moles of N₂ from the equation is 1).

From the equation of reaction,

28g of N₂ produce (2 * 17)g of NH₃

28g of N₂ = 34g of NH₃

112g of N₂ = x g of NH₃

X = (112 * 34) / 28

X = 136g of NH₃

Theoretical yield = 136g of NH₃

% yield = (actual yield / theoretical yield) * 100

% yield = (40.8 / 136) * 100

% yield = 0.3 * 100

% yield = 30%

Answer:

Yes

Explanation:

Answer:

c = wavelength * frequency

Therefore, to find frequency you must divide c (the speed of light, 3 x 10^8 m/s) by the wavelength.

Explanation:

Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. The frequency of light is 0.00056 s⁻¹.

Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave, light wave.

There is a relation between frequency of wave, and wavelength of wave

Mathematically,

ν =c÷λ

where,

ν =frequency of light =?

c is speed of light that is 3×10⁸m/s

λ is the wavelength of light=5.30x10¹¹m

Substituting all the values

ν =3×10⁸m/s÷5.30x10¹¹m

ν = 0.00056 s⁻¹

Thus the frequency of light is 0.00056 s⁻¹.

To know more about electromagnetic wave, here:

https://brainly.com/question/12289372

#SPJ5

Answer:

Option 3. 0.50M

Explanation:

Step 1 :

We'll begin by writing the balanced equation for the reaction. This is given below:

2NaOH + H2SO4 —> Na2SO4 + 2H2O

From the above equation, we obtained the following:

Mole ratio of the acid (nA) = 1

Mole ratio of the base (nB) = 2

Step 2:

Data obtained from the question. This includes the following:

Molarity of base (Mb) =?

Volume of base (Vb) = 24 mL

Volume of acid (Va) = 12 mL

Molarity of acid (Ma) = 0.50M

Step 3:

Determination of the molarity of the base.

The molarity of the base can be obtained by applying the following equation:

MaVa/MbVb = nA/nB

0.5 x 12/Mb x 24 = 1/2

Cross multiply to express in linear form

Mb x 24 = 0.5 x 12 x 2

Divide both side by 24

Mb = (0.5 x 12 x 2) /24

Mb = 0.5 M

Therefore, the molarity of NaOH is 0.5 M

Answer:

Ecology

Explanation:

Final answer:

The term for the interaction between living organisms and their environment, involving biotic and abiotic factors, is ecology. An ecosystem is the result of this interaction, including processes like respiration and photosynthesis that exemplify the interdependence of biotic and abiotic components.

Explanation:

The interaction between living organisms and their environment, which includes both biotic and abiotic factors, is a fundamental aspect of biology and is referred to as ecology. Biotic factors are the living parts of the environment, while abiotic factors include the nonliving components such as temperature, water, soil, and air. The complex system formed by the interplay of these factors is known as an ecosystem. Within an ecosystem, living organisms carry out processes like respiration and photosynthesis that influence the abiotic conditions, while the physical processes in the environment can affect the behavior and the very existence of living organisms.

For example, plants, as biotic factors, require abiotic components like sunlight, water, and carbon dioxide to perform photosynthesis. This process not only enables plants to produce their own food but also contributes oxygen to the environment, benefiting other organisms. Another interaction would be animals breathing in oxygen (an abiotic factor) and exhaling carbon dioxide, which is then used by plants. These exchanges illustrate the interdependence of biotic and abiotic factors and the cyclical nature of ecosystem function.

Answer:

Explanation:

100 mL of a .5 M solution

= 0.1 L of .5 M solution

This solution will contain .1 x .5 mole of solute

= .05 mole of solute

molecular weight of CuSO₄

= 63.5 + 32 + 64

= 159.5 gm

one mole of CuSO₄  = 159.5 gm

.05 mole = 159.5 x .05 gm

= 7.975 gm

7.975 gm of CuSO₄ will be required .

Answer:

A.)

Explanation:

From the balanced equation, it is clear that the mole ratio of the hydrazine to hydrogen peroxide is 1 :2 and that of hydrazine to water is

1 :4.

The mole ratio is the ratio between the number of moles of a reactant to the number of moles of another reactant.

The balanced chemical equation for the reaction is:

N2H4 + 2H2O2 → N2 + 4H2O

From the equation, the mole ratio of hydrazine (N2H4) to hydrogen peroxide (H2O2) is 1:2, which means that for every one mole of hydrazine used, two moles of hydrogen peroxide are used.

Similarly, the mole ratio of hydrazine (N2H4) to water (H2O) is 1:4, which means that for every one mole of hydrazine used, four moles of water are produced.

Therefore, the correct option is 1:2 and 1:4.

Find more on mole ratio:

https://brainly.com/question/15288923

#SPJ7

Answer:

true

Explanation:

The A horizon, known as the topsoil, is essential for plant production due to its rich organic content, while the B horizon, or subsoil, is denser and stores inorganic nutrients.

Topsoil is considered the A horizon, consisting of partially decayed organic matter that enhances soil moisture retention, while the Subsoil is the B horizon, a dense layer with inorganic nutrients accumulation.

In understanding soil composition and structure, it's crucial to identify the different layers or horizons that make up the soil profile. The topsoil is referred to as the A horizon, which is the layer where the soil possesses a mixture of organic material and inorganic products of weathering. This horizon is typically dark due to the presence of organic matter, making it highly crucial for plant production as it retains water and facilitates oxygen diffusion necessary for root respiration. Below the topsoil lies the subsoil, known as the B horizon. This layer accumulates mostly fine material that has been translocated downwards from the A horizon, making it denser. The subsoil is critical for the storage of inorganic nutrients but is lighter in color and has fewer organic materials compared to the topsoil.

Answer:

0.625 kg

Explanation:

Since 90.6 is 3 half-lives from 30.2 (90.6/30.2 = 3) , divide the initial mass of the sample by 2, and divide that quotient by 2, and divide THAT quotient by 2 to determine how much remains after 3 half-lives.

The mass will remain at 1.6 kg.

Mass after t years:

The mass of the elements after t years is given by the following equation:

M(t) = M(0)(1-r)[tex]^{t}[/tex]

The half-life of Cs-137 is 30.2 years.

This means that:

M (30.2) = 0.5 M (0)

M (t) = M (0)(0.9773)[tex]^{t}[/tex]

This is M(151), with M(0) = 100.

Then,

M(90.6) = 5(0.9773)[tex]^{90.6}[/tex]

= 5*0.24

= 1.2 kg

Cesium-137 emits beta particles as it decays to the barium isotope, Ba-137m.

Learn more about initial mass here: brainly.com/question/25573309

#SPJ2

Answer:

alpha

Explanation:

Answer:

The correct answer is option A, that is, mitosis only has one cell division set.

Explanation:

The two kinds of nuclear division that takes place at the time of cell differentiation are meiosis and mitosis. In the process of mitosis, the cells of the body get divide, while in meiosis the sex cells are differentiated.  

While going through the process of mitosis, the cell divides only one time, on the other hand, during meiosis a cell divides two times. After going through mitosis production of two diploid daughter cells takes place, while after going through meiosis generation of four haploid daughter cells takes place. Thus, it is clear from the diagram that the process of meiosis is taking place, as the formation of four haploid cells is taking place as the cell is dividing two times.  

Answer: c

Explanation: it is the temperature at which Fahrenheit and Celsius read the same

It's the temperature at which Fahrenheit and Celsius thermometers read the same exists significant about the temperature -40°C.

One of the most pervasive and significant physical elements in an organism's environment is temperature. It is a gauge for the typical speed of atoms and molecules moving at random; the higher the temperature, the faster the motion.

Because temperature affects the physical state of water, it has the greatest impact on how organisms are distributed. Most organisms cannot survive in environments where the temperature is consistently below 0°C or above 45°C.

Since there are 100 units between the freezing (0°C) and boiling (100°C) points of water, the Celsius scale is a centigrade scale. The majority of the world uses this temperature scale, which is also the recognized unit of measurement in science.

It's the temperature at which Fahrenheit and Celsius thermometers read the same exists significant about the temperature -40°C.

Therefore, the correct answer is option C. It's the temperature at which Fahrenheit and Celsius thermometers read the same.

To learn more about temperature refer to:

https://brainly.com/question/24746268

#SPJ2