What is the ph of a solution with a hydrogen ion h+ concentration of 10-8 m?

Answers

Answer 1
The ph of the solution would be 8

Related Questions

At the same conditions of pressure and temperature ammonia gas is less dense than air why is this true

Answers

According to Marriotte's law, we can use a formula that's a derivation of the original law. That formula says that pressure multiplied by the molar mass, and then divided by R (a constant value) multiplied by the temperature, equal the specific mass of a gas, for example. If we are considering the same temperature and pressure for the air and the ammonia gas then the only difference is really on the molar mass of the gas. The molar mas for air is 0.029 kg/mole and the molar mass for the ammonia gas is 0.017 kg/mol. Just from here we see that the ammonia gas will be less dense then the air.

Work done after rutherford's gold foil experiment demonstrated that the nucleus contained ________.

Answers

protons and neutrons

hope this helps 

The total number of oxygen atoms indicated by the formula al2(cr2o7)3 is

Answers

7*3=21 oxygen atoms in the formula

The number of oxygen atoms on the given formula  Al₂(Cr₂O₇)₃ is equal to 21.

What is the chemical formula?

A chemical formula can be described as a way of presenting information about the chemical proportions of atoms that are present in a particular molecule or chemical compound. The chemical formula is written by using chemical element symbols, numbers, and also other symbols, such as dashes, brackets, commas, and plus (+) and minus (−) signs.

A chemical formula contains no words but may imply certain simple chemical structures. Chemical formulae are generally more limited in power than structural formulae and chemical names.

In a chemical formula, more than one atom of the same element is represented by subscripts. In the given formula of a chemical compound Al₂(Cr₂O₇)₃ the oxygen has two subscripts that multiply with each other and the total number of oxygen atoms in the formula is 7×3 = 21.

Learn more about chemical formula, here:

https://brainly.com/question/11140581

#SPJ2

The vapor pressure of dichloromethane, c h 2 c l 2 , at 0 ∘ c is 134 mmhg . the normal boiling point of dichloromethane is 40. ∘
c. calculate its molar heat of vaporization.

Answers

 the vapor pressure of the liquid at a temperature T2 ... Now, it's important to realize that the normal boiling point of a substance is measured at an atmoshperic ... ΔHvap=−ln(134mmHg760mmHg )⋅8.314J mol−1K−1 (1(273.15+0)−1(273.15+40))K−1 ... Give equations that can be used tocalculate the .

Now try it yourself :)

The subatomic particles that play the key role in determine the properties of an element electrons

Answers

True........The subatomic particles that play the key role in determining the properties of an element are electrons.



 

What occurs when the temperature of 10.0 grams of water is changed from 15.5 degrees celsius to 14.5?

Answers

Q = m*Cp*(del T) 
Where m = mass cp = specific heat capacity = 4.1855 J g–1 K–1 at 15 deg C del T = temp change = 14.5-15.5 = - 1 deg C 
there fore, Q = 10*4.1855*-1 = - 41.855 J 
Hence 42 joules will be release by water when temp is decrease from 15.5 to 14.5 deg C

Final answer:

When the temperature of 10.0 grams of water decreases from 15.5°C to 14.5°C, it loses 41.84 Joules of heat, calculated using the specific heat capacity of water.

Explanation:

When the temperature of 10.0 grams of water is changed from 15.5 degrees Celsius to 14.5 degrees Celsius, the process involves a decrease in the water's thermal energy. To compute the amount of heat lost, the specific heat capacity of water is applied, which is 4.184 J/(g °C). The equation used is Q = mcΔT, where Q is the heat transferred, m is the mass of the water, c is the specific heat capacity, and ΔT is the change in temperature.

By plugging the values into the equation: Q = (10.0 g)(4.184 J/(g °C))(14.5°C - 15.5°C) = -41.84 J. This result indicates that the water loses 41.84 Joules of heat as its temperature decreases by 1 degree Celsius.

Resonance in air columns is used in which of these musical Instruments?

Answers

Resonance in air columns is used in a variety of musical woodwind instruments. Something like a flute for example uses resonance to make sound. Not sure what instruments you are talking about unless you provide a list.

Answer: Trumpets makes the most sense

The process by which molecules of water vapor in the air become liquid water answers

Answers

I believe that is condensation

What is the ratio of Al 3+ ions to S 2- ions in a neutral compound?

Answers

In a neutral ionic compound, you can determine its sub-scripts by simply flipping the ionic charges and dropping the signs: so AlS would be Al2S3

Answer:

The ratio of aluminium to sulfur is 2:3

Explanation:

The ratio of the elements of the neutral compound can be computed from the ionic charges that makes up the compound. The element that makes up the compound is aluminium and sulfur.  From the ions aluminium is the cation with a charge of 3+ . The  aluminium ion is the cations because it loses 3 electrons from the bonding between it and sulfur. The sulfur is the anion as it gains electrons from the cations.

Aluminium has a charge of 3+ and sulfur has a charge of 2- . The atom of element that makes up the neutral compound can be computed when you cross multiply the charges.

Al3+ and S2-

cross multiply the charges

Al2S3.

The ratio of aluminium to sulfur is 2:3

 

In a neon tube, what occurs immediately after an atom is excited?

Answers

it drops back down to a lower energy level

What is formed when two or more atoms are held together by covalent bonds?

Answers

Fusion (they get together)
Final answer:

A molecule is formed when two or more atoms are held together by covalent bonds. These bonds are based on the sharing of electron pairs between atoms. Water (H2O) is an example of a molecule formed through covalent bonding.

Explanation:

When two or more atoms are held together by covalent bonds, a molecule is formed. Covalent bonds are a type of chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. An example of a molecule formed through covalent bonding is water (H2O), where one oxygen atom shares electron pairs with two hydrogen atoms.

Learn more about Covalent Bonds here:

https://brainly.com/question/16655971

#SPJ12

Imagine a beaker divided down the center by a rigid membrane that is freely permeable to water but impermeable to glucose. side 1 contains a 10 percent glucose solution and side 2 contains the same volume of pure water. at equilibrium, what will be the situation

Answers

The osmotic pressure will cause the water moves to glucose solution, lowering it concentration gradually. Increased water in glucose solution will increase hydrostatic pressure that will cause water molecule moves from glucose solution.
In equilbrium, the hydrostatic pressure will be equal to the osmotic pressure. This will cause the water molecule moved to glucose solution(caused by osmotic pressure) equal to water moves from glucose solution(causes by hydrostatic pressure)

How do you write zinc chloride as a chemical formula?

Answers

ZnCl2 is the chemical formula, hope this helps.

your seven-year-old neighbor has just developed a new interest in science and she want to learn all that she can.you know many examples of science are all around you so you decide to to take her on a house tour of your house or your nebiorhoood to point them out.

Answers

okokokokokokokokokokokokokokok

How did the rate of the reaction change over time in the control reaction?

Answers

The control reaction leveled Off

What type of bond results from the electrostatic attraction between positive and negative atoms?

Answers

it is called a ionic bond

What do melted ice cooling lava and boiling water have in common?

Answers

they are all transioning in states of matter

If 32 ml of 7.0 m h2so4 was spilled, what is the minimum mass of nahco3 that must be added to the spill to neutralize the acid?

Answers

The complete balanced reaction of this neutralization reaction is:

 H2SO4  +  2NaHCO3  -->  2CO2  +  2H2O  +  Na2SO4

 

Then we calculate the moles of H2SO4 that was spilled:

 moles H2SO4 = 7 mole/L * 0.032 L = 0.224 mole

 

From the reaction, we see that 2 moles of NaHCO3 is required for every mole of H2SO4, hence:

 moles NaHCO3 = 0.224 * 2 = 0.448 mole

 

The molar mass of NaHCO3 is 84 g/mol. Hence the mass is:

mass NaHCO3 = 0.448 * 84

mass NaHCO3 = 37.632 grams

Final answer:

The minimum mass of NaHCO3 that must be added to neutralize the spilled H2SO4 is 37.632 grams.

Explanation:

To determine the minimum mass of NaHCO3 needed to neutralize the spilled H2SO4, we can use stoichiometry.

The balanced equation for the reaction between H2SO4 and NaHCO3 is:

H2SO4 (aq) + 2NaHCO3(aq) → Na2SO4 (aq) + 2CO2 (g) + 2H2O (l)

From the equation, we can see that 1 mole of H2SO4 reacts with 2 moles of NaHCO3. We are given the volume (32 mL) and concentration (7.0 M) of the H2SO4, so we can calculate the number of moles of H2SO4:

Moles H2SO4 = volume (L) x concentration (M) = 32 mL / 1000 mL/L x 7.0 M = 0.224 moles H2SO4

Now, we can use the stoichiometry of the reaction to calculate the minimum mass of NaHCO3 needed to neutralize the acid. Since the molar ratio of H2SO4 to NaHCO3 is 1:2, we can set up the following conversion:

0.224 moles H2SO4 x (2 moles NaHCO3/1 mole H2SO4) x (84.0 g NaHCO3/1 mole NaHCO3) = 37.632 g NaHCO3

Therefore, the minimum mass of NaHCO3 that must be added to the spill to neutralize the acid is 37.632 grams of NaHCO3.

Why are hydrogen bonds important for the properties of water?

Answers

Water has the special type of attraction called Hydrogen bonding.  The bonds between the Hydrogen and the Oxygen in each water molecule make a super dipole because the Oxygen atom is way more electronegative than the hydrogen atom.  These OH bonds can then be attracted to other H2O molecules.  If you have ever poured water up to the brim and there is  little bit of water that is poking above the top, hydrogen bonding keeps those water molecules from spilling

Water binds to each other with a strong attraction called a hydrogen bond. Water is incredibly cohesive as a result. Every day, water drops and streams provide visual proof of water's cohesion.

What is hydrogen bond ?

Not a covalent link to a hydrogen atom, hydrogen bonding is a unique kind of dipole-dipole interaction between molecules. It comes about as a result of the attraction between two extremely electronegative atoms, such as N, O, or F, and a hydrogen atom that is covalently bound to one of them.

When a highly electronegative atom's lone pair interacts with the hydrogen atom in an N-H, O-H, or F-H bond, they form a specific type of dipole-dipole interaction known as hydrogen bonding.

When a hydrogen atom that is connected to an electronegative atom moves toward another electronegative atom nearby, powerful intermolecular forces called hydrogen bonds are produced. The hydrogen bond acceptor's electronegativity will rise, resulting in a stronger hydrogen bond.

Thus, Water binds to each other with a strong attraction called a hydrogen attractive force.

To learn more about the hydrogen bond, follow the link;

https://brainly.com/question/15099999

#SPJ2

What mass of butane, c4h10, is required to heat 0.35 gallon of h2o from 22°c to 100°c?

Answers

Check the attached file for the solution.

Hydrogen gas (a potential future fuel) can be formed by the reaction of methane with water according to the following equation: CH4(g)+H2O(g)→CO(g)+3H2(g) In a particular reaction, 25.5 L of methane gas (measured at a pressure of 734 torr and a temperature of 25 ∘C) is mixed with 22.6 L of water vapor (measured at a pressure of 704 torr and a temperature of 125 ∘C). The reaction produces 26.4 L of hydrogen gas measured at STP.

Answers

Let us assume that all gases are ideal. So we can use the formula:

PV = nRT

The reaction is:

CH4(g) + H2O(g) → CO(g) + 3H2(g)

 

First we determine what the limiting reactant is. This can be done by calculating for the number of moles (n) for each reactant.

 

For CH4:

nCH4 = (734 torr) (25.5 L) / (62.36367 L torr / mol K) (298.15 K)

nCH4 = 1 mol

 

For H2O:

nH2O = (704 torr) (22.6 L) / (62.36367 L torr / mol K) (398.15 K)

nH2O = 0.64 mol

 

Therefore H2O is the limiting reactant therefore the theoretical moles of H2 produced is:

nH2(theo) = 0.64 mol * (3 mol H2 / 1 mol H2O) = 1.92 mol

 

The actual moles of H2 is:

nH2(actual) = (750 torr) (26.4 L) / (62.36367 L torr / mol K) (273.15 K) = 1.16 mol

 

Therefore the yield is:

% yield = 1.16 / 1.92 * 100%

% yield = 60.42%

Final answer:

In the reaction of methane with water, each mole of methane produces three moles of hydrogen gas. Although the question is missing some key details to allow full calculations, we can infer from the provided volumes that the reactants and products are following this predicted mole ratio.

Explanation:

The reaction of methane with water to produce hydrogen and carbon monoxide gas is represented by the equation: CH4(g) + H2O(g) → CO(g) + 3H2(g). The question provides the volumes, pressures, and temperatures of the reactants (methane and water vapor), and asks about the volume of the produced hydrogen gas measured at STP (Standard Temperature and Pressure).

To derive the ratio of reactant quantities, we would ideally use the ideal gas law, but this question seems to be missing certain key details to perform the calculation (like the final pressure and/or temperature). However, given the balanced chemical reaction, we can say that for every mole of methane reacted, three moles of hydrogen is produced, which explains the production volume of hydrogen being greater than the initially contributed volume of methane.

Learn more about Reaction of Methane here:

https://brainly.com/question/34339916

#SPJ11

Predict the precipitate produced by mixing an Al(NO3)3 solution with a NaOH solution. Write the net ionic equation for the reaction. (Include the states of matter.)

Answers

Aluminum hydroxide is a substance that is insoluble in water and will form precipitates in this reaction. The complete reaction equation and net ionic equations are as follows:

Al(NO₃)₃(aq) + 3NaOH(aq) → Al(OH)₃(s) + 3NaNO₃(aq)

Al⁺³(aq) + 3OH⁻(aq) → Al(OH)₃(s)

Mixing an Al(NO₃)₃ solution with a NaOH solution results in the formation of a white precipitate of aluminum hydroxide, Al(OH)₃. The net ionic equation for the reaction is Al³⁺(aq) + 3OH⁻(aq) → Al(OH)₃(s), showing only the ions involved in the formation of the precipitate.

When an Al(NO₃)₃ solution is mixed with a NaOH solution, a precipitate will form. This precipitate is aluminum hydroxide, Al(OH)₃. To write the net ionic equation for this reaction, we first need to consider the full molecular equation:

Al(NO₃)₃(aq) + 3NaOH(aq) → Al(OH)₃(s) + 3NaNO₃(aq)

Now, we can write the complete ionic equation, showing all the ions present in the reaction:

Al³⁺(aq) + 3NO³⁻(aq) + 3Na⁺(aq) + 3OH⁻(aq) → Al(OH)₃(s) + 3Na⁺(aq) + 3NO³⁻(aq)

The net ionic equation only shows the species that actually change during the reaction. Spectator ions (Na⁺ and NO³⁻) are not included:

Al³⁺(aq) + 3OH⁻(aq) → Al(OH)₃(s)

The solubility constant of your compound depends on

Answers

The solubility constant has to do with the amount of solute that can be dissolved in a given amount of a certain solvent, mostly water. It is affected by two factors: temperature and pressure. But for solids and liquids, it is not affected by pressure because they are incompressible.

What color does cobalt-oxide produce?
a. blue-violet
b. red
c. yellow
d. green?

Answers

blue-voilet
CoO is a metallic coloring oxide that produces blue in glazes at all temperatures (unless in very high percentages where it will be black). Black Cobalt Oxide is a key source of CoO used in glazes, glass, and enamels. Cobalt is the most powerful ceramic colorant and it is stable in most systems, it appears in many recipes at 1% or lower. Like copper, it melts very actively in oxidation. If it is mixed into a fluid frit base in high enough a percentage, it will completely crystallize during cooling. Cobalt is also useful as a body and slip stain (see the oxide CoO oxide for more information). However, cobalt materials are very expensive, this severely limits its practical use in many things.

There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, the correct option is option A.

What is chemical Compound?

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound.  Ionic compound are very hard. They have high melting and boiling point because of strong ion bond. The color of cobalt-oxide is blue-violet. The CoO is a metallic coloring oxide that produces blue in glazes at all temperatures.

Therefore, the correct option is option A.

To learn more about chemical compound, here:

brainly.com/question/26487468

#SPJ5

How reactive is an atom of Sodium(Na) and why?



Question 1 options:

Sodium (Na) is not very reactive because it does not have a full valence shell.


Sodium (Na) is not very reactive because it can only bond with Chlorine (Cl) to become salt.


Sodium (Na) is very reactive because it does not have a full valence shell.


Sodium (Na) is very reactive because it does not have enough protons in the nucleus.

Answers

The correct option is C. 
For an element to be unreactive and stable, it must have eight electrons in its outermost shell. Sodium has an atomic number of 11 and thus have only one electron in its outermost shell. This makes sodium very reactive and it is always very willing to react with suitable elements in order to become stable.

How do the fracture toughness values compare between ceramics, polymers and metals?

Answers

Metal has characteristics like, high electrical and thermal conductivity, the ability to be deformed or cut into new shapes without breaking, and high mechanical strength.Ceramics are generally compounds between metallic and nonmetallic elements and include such compounds as oxides, nitrides, and carbides. Typically they are insulating (not electrical or thermally conductive) and resistant to high temperatures and harsh environments (corrosion resistant).Plastics (or polymers) are generally organic compounds based upon carbon and hydrogen. They are very large molecular structures.

If a mixture of gases contained 78% nitrogen at a pressure of and 22% carbon dioxide at , what is the total pressure of the system? 1,329 atm 17.5 cm hg 639 torr 1.75 atm none of these

Answers

The pressures given are the partical pressures of the two gases.

The law of Dalton or of the partial pressures states that the total pressure of a mixture of gases is equal to the sum of the pressures of all the gases.

So, in this case:

Total pressure = pressure of nitrogen + pressure of carbon dioxyde.

Of course both terms must be in the same units.

i have found that the pressures for this problem are:

Pressure of nitrogen = 984 torr

Pressure of carbon dioxyde = 345 torr

Total pressure = 984 torr + 345 torr = 1329 torr.

Now convert to atm: 1 atm = 760 torr

=> 1329 torr * 1 atm / 760 torr = 1.74868 atm ≈ 1.75 atm

Answer: 1.75 atm

Rutherford’s experimental observations, which of the following statements describes the structure of the atom according to Rutherford's atomic model?

Answers

What are the choices?

But according to his atomic model, the atom had a dense, positively charged nucleus surrounded by electrons and empty space.

The statements that best describe the structure of the atom according to Rutherford's atomic model are as follows:

In an atom, the positive charges are located in a small core within the atom called the nucleus.In an atom, negatively charged electrons are dispersed in the space surrounding the positively charged nucleus of an atom.

Who was Ernest Rutherford?

Ernest Rutherford was a New Zealand physicist who is known as the father of nuclear physics. He was responsible for a series of discoveries in the field of radioactivity and nuclear physics. He is also known for the discovery of positively charged sub-atomic particles known as protons.

According to Rutherford's atomic model, the positively charged sub-atomic particles are located in the middle portion of the atom which is known as the nucleus while the negatively charged sub-atomic particles are dispersed and revolving the nucleus of an atom.

Therefore, the statements that best describe the structure of the atom according to Rutherford's atomic model are briefly mentioned-above.

To learn more about Rutherford's atomic model, refer to the link:

https://brainly.com/question/21373854

#SPJ2

Your question seems incomplete. The most probable complete question is as follows:

Rutherford’s experimental observations, which of the following statements describes the structure of the atom according to Rutherford's atomic model?

In an atom, the positive charges are located in a small core within the atom called the nucleus. In an atom, negatively charged electrons are dispersed in the space surrounding the positively charged nucleus of an atom.In an atom, positively charged particles are dispersed in the space surrounding the negatively charged sphere.In an atom, all of the positive and negative charges are randomly distributed.

Carbohydrates and proteins are built up from their basic building blocks by the ________.
a. removal of a nitrogen atom between each two units
b. addition of a water molecule between each two units
c. removal of a water molecule between each two units
d. addition of a carbon atom between each two units

Answers

c, to form bonds between each monomers

One of the components that make up common table sugar is fructose, a compound that contains only carbon, hydrogen, and oxygen. complete combustion of 1.50 g of fructose produces 2.20 g of carbon dioxide and 0.900 g of water. what is the empirical formula of fructose? answer

Answers

The empirical formula of fructose is CH2O. The moles of Carbon and Hydrogen in the fructose are .6g (2.2g*(12 g/mol/44g/mol)) and .1g (.9g*(2g/mol/18g/mol)) respectively. The mass of Oxygen in the fructose is the remainder (.8g) Converting these amounts to moles gives us: .05 moles C, .1 moles H, and .05 moles O. This gives molar ratios of 1C:2H:1O, which can be rewritten as CH2O.

Final answer:

To find the empirical formula of fructose from combustion data, calculate the moles of C from CO₂ and H from H₂O. Then, adjust for oxygen in both products to find the total oxygen. The result is a 1:2:1 ratio, giving an empirical formula of CH₂O.

Explanation:

Determining the Empirical Formula of Fructose

When 1.50 g of fructose is combusted, it produces 2.20 g of carbon dioxide (CO₂) and 0.900 g of water (H₂O). To find the empirical formula, we need to determine the amount of carbon, hydrogen, and oxygen in the original fructose sample.

Firstly, we calculate the moles of carbon from the mass of carbon dioxide:
2.20 g CO₂ × (1 mol CO₂ / 44.01 g CO₂) = 0.0500 mol of CO₂This means fructose contains 0.0500 mol of carbon (since 1 mole of CO₂ contains 1 mole of C).Secondly, we calculate the moles of hydrogen from the mass of water:
0.900 g H₂O × (1 mol H₂O / 18.015 g H₂O) × (2 moles H / 1 mol H₂O) = 0.100 mol of HThe oxygen in the fructose comes partly from CO₂ and H₂O. To find the oxygen amount, we first convert the mass of CO₂ and H₂O to moles of oxygen:From CO₂: 0.0500 mol CO₂ × (1 mol O / 1 mol CO₂) = 0.100 mol of OFrom H₂O: 0.900 g H₂O × (1 mol H₂O / 18.015 g H₂O) = 0.0500 mol H₂OFinally, we determine the ratio of C:H:O in moles, which gives us the empirical formula. Dividing each by the smallest number of moles, we have:C: 0.0500 mol / 0.0500 = 1H: 0.100 mol / 0.0500 = 2O: (0.100 mol + 0.0500 mol - 0.0500 mol H₂O) / 0.0500 = 1This produces a ratio of 1:2:1, indicating that the empirical formula is CH₂O.

Note that in each of these cases, we are assuming that all of the carbon and hydrogen in fructose end up in CO₂ and H₂O, respectively, and we adjust for the presence of oxygen in both CO₂ and H₂O to find the total oxygen in the original sample.

Other Questions
To which period does the Lanthanide series belong? Actinides? In which ways were the Eastern Orthodox and Roman Catholic Churches alike? Select all that apply.1.Both allowed priests to marry.2.Both recognized Easter as the most important holy day.3.Both celebrated the sacraments.4.Both accepted the patriarchs authority over all Christians. HELP PLEASE What Property Of Addition is this ?3 + (8 + a) = (8 + a) + 3 What german airship was used in the bombing raids by the germans ww1? A ringtone company charges $9 a month for the service plus $1.25 for each ringtone downloaded.What is the graph of the equation that models the total fees per month? The length of a copper wire is 1.6 centimeters (cm). What is the length of this wire in meters (m)? there are 2 more than 3 times as many parrots as finches at the pet store, if there's a total of 18 parrots and finches, how many are parrots and how many are finches Convert 30 feet per second to miles per minute.5280 ft = 1 miRound to the nearest hundredth.Enter your answer in the box.____mi/min 9)which executive department plays a pivotal role in shaping united states foreign policy and opening embassies around the world?A)the department of homeland securityB)the state departmentC)the central intelligence agencyD)the department of the interior Which of the following represents x =1/2 y written in general form? evaluate the extent of change in ideas about american independence from 1763 to 1783 Definition: special laws passed by southern state governments immediately after the civil war. they were designed to control former slaves, and to subvert the intent of the thirteenth amendment. What is the solution to -90 to the nearest integer?A) 3B) -5C) 7D) -9 Read the passage: The paper became my meat and my drink. My soul was set all on fire. This passage uses figurative language to convey A. How inspired Douglass feels to read the words of others who agree with him. B. How hungry Douglass feels. C. How angry he feels when reading pro-slavery editorials. D. How passionate Douglass feels about his wife.Thank you! ___________ refers to the mood or attitude an advertisement conveys what factors protected Russia from control by napoleons army HURRY PLEASE What is the product? 7(4)(6) 168 3 17 168 What should the thesis statement for an essay about a turning point accomplish? Check all that apply. A painting crew bought 30 gal of paint for a job. The crew members used 3 gal of paint per hour until they used all the paint.Which sketch represents this situation?A) A graph in the first quadrant containing a line segment. The x axis is labeled Hours and the y axis is labeled Gallons remaining. The endpoints of the line segment are begin ordered pair 0 comma 3 end ordered pair and begin ordered pair 30 comma 0 end ordered pair.B) A graph in the first quadrant containing a line segment. The x axis is labeled Hours and the y axis is labeled Gallons remaining. The endpoints of the line segment are begin ordered pair 0 comma 30 end ordered pair and begin ordered pair 10 comma 0 end ordered pair.C) A graph in the first quadrant containing a line segment. The x axis is labeled Hours and the y axis is labeled Gallons remaining. The endpoints of the line segment are begin ordered pair 0 comma 10 end ordered pair and begin ordered pair 30 comma 0 end ordered pair.D)A graph in the first quadrant containing a line segment. The x axis is labeled Hours and the y axis is labeled Gallons remaining. The endpoints of the line segment are begin ordered pair 0 comma 30 end ordered pair and begin ordered pair 3 comma 0 end ordered pair. A family of elements that has two electrons in its outer energy level is the Steam Workshop Downloader