Directions: Select the correct planet.
The diagram below shows the orbits of the inner planets around the Sun Based on the diagram, which inner planetas the longest
year?
Nenus
Mercury
Mars
Earth
Sun and planets
not drawn to scale

Answer:

Ksp = 4x³

Explanation:

Step 1: Write the reaction for the solution of calcium hydroxide

Ca(OH)₂(s) ⇒ Ca²⁺(aq) + 2 OH⁻(aq)

Step 2: Make an ICE chart

Let "x" be the molar solubility of calcium hydroxide.

        Ca(OH)₂(s) ⇒ Ca²⁺(aq) + 2 OH⁻(aq)

I                                 0                  0

C                              +x               +2x

E                                x                 2x

Step 3: Write the expression for the solubility product constant (Ksp)

The solubility product constant is equal to the product of the concentrations of the products raised to their stoichiometric coefficients.

Ksp = [Ca²⁺] × [OH⁻]² = x × (2x²) = x × 4x² = 4x³

if [tex]x[/tex] represents the molar solubility of  calcium hydroxide then  correct equation for the Ksp is [tex]\bold {x^3}[/tex]

Solubility product constant Ksp:

It is the equilibrium constant for a solid substance that are dissolved in an aqueous solution. It expresses how much a solute is dissolved in solution.

The reaction of calcium hydroxide for the solution  

[tex]\bold {Ca (OH )_2(s) \rightarrow Ca^2^+(aq) + 2 OH^-(aq)}[/tex]  

1 mole of calcium hydroxide is dissociate into 1 mole of calcium ion and 2 moles of Hydroxil ion.

The Ksp equation for the solution,

[tex]\bold {Ksp =[Ca^2^+][ OH^-]^2}\\[/tex]

If [tex]x[/tex] represents molar solubility,

[tex]\bold {Ksp =[x][ x]^2 = x^3}\\[/tex]

Therefore, if [tex]x[/tex] represents the molar solubility of  calcium hydroxide then  correct equation for the Ksp is [tex]\bold {x^3}[/tex]

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Answer:

CH3COOH(aq) + H2O(l) ⇄ CH3COO-(aq) + H3O+(aq)

Explanation:

Acetic acid is a weak acid, so it only partially dissociates, hence the reversible reaction. Acids react with water to produce conjugate base and hydronium.

1. C. Linus Pauling

2. C. chemistry

3. A. atom

4. D. protons, neutrons and electrons

5. B. positively

6. A. negatively

7. C. uncharged

8. D. carries a charge

9. C. Au

10. D. protons in the nucleus

11. A. atoms

12. B. the pull of gravity on matter

13. C. protons

14. C. 112

15. C. symbols

16. D. compounds

17. C. sodium chloride salt

18. C. solids, liquids, and gases

19. A. the gaseous state

20. C. a number and a unit

21. B. the weight of an object

22. D. 1,000

23. C. 100

24. B. uncertain

25. D. 4

26. A. 1

27.C. 2.26 x 102

28. C. 5 x 10-3

29. C. atomic number

30. A. 5 g/cm3

31. D. temperature

32. C. meter

33. B. 2.2

Answer:

[tex]V_2=8L[/tex]

Explanation:

Hello there!

In this case, considering the Avogadro's gas law, which treats the volume and moles in a directly proportional way via:

[tex]\frac{V_1}{n_1}=\frac{V_2}{n_2}[/tex]

Which can be solved for the final volume, V2, as shown below:

[tex]V_2=\frac{V_1n_2}{n_1}[/tex]

Thus, by plugging in the given data, we obtain:

[tex]V_2=\frac{4L*(0.250mol+0.250mol)}{0.250mol}\\\\V_2=8L[/tex]

Regards!

The final total volume of gas is equal to 8 Liters.

Given the following data:

To determine the final total volume of gas, we would apply the Avogadro's equation for an ideal gas:

At constant temperature and pressure, Avogadro's equation for an ideal gas is given by this formula:

[tex]\frac{V_1}{n_1} = \frac{V_2}{n_2}[/tex]

For the final total moles:

[tex]n_2=n_1+n_1\\\\n_2 = 0.250+0.250\\\\n_2=0.50\;mol[/tex]

Making [tex]V_2[/tex] the subject of formula, we have:

[tex]V_2 = \frac{V_1n_2}{n_1}[/tex]

Substituting the given parameters into the formula, we have;

[tex]V_2 = \frac{4 \times 0.5}{0.25}[/tex]

Final total volume = 8 Liters.

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when a beaker of water is heated with a yellow burner flame ;

Yellow burner flames are caused by incomplete combustion of gas and the incomplete combustion results to the presence of soot in the flame. yellow flame produces less heat energy than blue burner flames.

While when a blue burner flame is used to heat a water contained in a beaker the water gets heat up faster and the beaker remains clean ( void of soot deposits ).

Hence we can conclude that when a beaker of water is heated with a yellow burner flame the soot from the flame will be deposited on the outside of the beaker and it will take longer time to heat up the water.

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Answer: The human body readily responds to changing environmental stresses in a variety of biological and cultural ways. We can acclimatize to a wide range of temperature and humidity. ... This ability to rapidly adapt to varying environmental conditions has made it possible for us to survive in most regions of the world.

Explanation:

Answer:

i think it is NO2 and +6 NO 6 that's all I have

Answer:

4.22 mol H₂O

Explanation:

Step 1: Write the equation for the synthesis of water

2 H₂ + O₂ ⇒ 2 H₂O

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of O₂ to H₂O is 1:2.

Step 3: Calculate the moles of water produced from 2.11 moles of oxygen

We will use the previously established molar ratio.

2.11 mol O₂ × 2 mol H₂O/1 mol O₂ = 4.22 mol H₂O

Answer: the particles of matter are in constant motion

took the test

Answer:

Mg is highly reactive as compared to that of Copper owing to its periodic position

Explanation:

MG lies in the second column of the periodic table while Cu lies in the 11th column of the periodic table from the left.

The elements in the first two columns are metallic in nature are highly reactive.

In CuCl2 solution, Mg being highly reactive replaces Cu but in MgCl2 solution, Cu being less reactive in nature do not replaces the Mg from the solution.

Answer:

climbing up into the canopy

Explanation:

Answer:

a. Clay

b. Sandy Loam

c. Sandy Clay

d. Loamy Sand

Explanation:

Based on the soil texture triangle, the soil texture for the following combination of sand, silt and clay are;

a. Sand 20 percent; Silt 20 percent;Clay 60 percent: ____ CLAY

b. Sand 60percent; Silt 30percent; Clay 10percent: ___ SANDY LOAM

c. Sand 50percent; Silt 10percent;Clay 40 percent: ____ SANDY CLAY

d. Sand 80 percent; Silt 15 percent; Clay 5percent:_____ LOAMY SAND

Answer:

Carbon dioxide and water I believe because it is a combustion reaction

Answer:

If I'm not mistake it should be D

Explanation:

Please inform me if im right or wrong.

Explanation:

n=3 is basically all the electrons in the 3rd energy level, so

3s=2

3p=6

3d=10

so total equals 18 electrons

n=5, l=1, refers specifically to the 5p

p has 3 orbitals so it can fill a total of 6 electrons

n=6, l=1, ml=-1,

so this refers to the 6p and since we have ml it refers to the specific orbital.

ml refers to the formula: -l -> l.

so in this case -1,0,1 ; these three numbers correspond to the 3 orbitals in the p subshell, each one can hold 2 electrons,

Thus, in this case the answers is 2

Answer: hello, there! your answer is Below.

n=5, l=0

Explanation:

3s=2

3p=6

3d=10

so total equals 18 electrons

n=5, l=1, refers specifically to the 5p

p has 3 orbitals so it can fill a total of 6 electrons

n=6, l=1, ml=-1,

so this refers to the 6p and since we have ml it refers to the specific orbital.

ml refers to the formula: -l -> l.

so in this case -1,0,1 ; these three numbers correspond to the 3 orbitals in the p subshell, each one can hold 2 electrons,

Hope this Helps you!!!

Have a great day!!

Answer:

Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.

Explanation:

Hi

Answer:

I think it is 860 g MG Cl2

Explanation:

your welcome

Answer:

b) increased allergies and respiratory problems.

Explanation:

i hope this helps!

have a great rest of your day!

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Answer:

Human health effects of dust relate mainly to the size of dust particles. Dust may contain microscopic solids or liquid droplets that are small enough to get deep into the lungs and cause serious health problems. Large particles may irritate the nose, throat and eyes. ... Dust from soil can irritate the respiratory tract.

b. increased allergies and respiratory problems

Answer: Derived lipids:

Hydrolysis product of simple and compound lipids is called derived lipids. They include fatty acid, glycerol, sphingosine and steroid derivatives. Steroid derivatives are phenanthrene structures that are quite different from lipids made up of fatty acids.

Explanation:

Answer:

c. H₂​O (l) → H₂​O(s)

Explanation:

The correct answer is option C: The molecular formulas for the substance(s) on the left side of the equation and on the right side of the equation are identical. This means that there was not a chemical change, but a physical one.

In this concrete example, what happened was a change of states of matter: from liquid (l) to solid (s).

Other reactions have different molecular formulas on both sides of the equation, thus they represent chemical changes.

Answer:

.0068

Explanation:

You divided the number of molecules by 6.022*10^23 (Avagodros Number) to get the number of moles.

Answer:

8.33 L .

Explanation:

Hello there!

In this case, according to the given problem, it is possible to firstly write up the undergoing chemical reaction:

[tex]3H_2+N_2\rightarrow 2NH_3[/tex]

Whereas the mole ratio of hydrogen to nitrogen is 3:1. In such a way, given that the mole ratios can be also applied in volume when the temperature and pressure remain unchanged, it is possible to compute the required volume of nitrogen from 25.0 L of hydrogen as shown below:

[tex]25.0L\ H_2*\frac{1L \ N_2}{3L\ H_2}\\\\=8.33L[/tex]

Best regards!

Answer:

In physics, a conservation law states that a particular measurable property of an isolated physical system does not change as the system evolves over time. Exact conservation laws include conservation of energy, conservation of linear momentum, conservation of angular momentum, and conservation of electric charge.

Explanation:

hope this helps :)

Answer:

The kinetic-molecular theory applies on to ideal gases.. Many gases behave nearly ideally if pressure is not very high and temperature is not very slow. ... Because the attractive forces between gas particles are insignificant, gas particles glide easily past one another.

F

Explanation:

Answer:

answer is 30 g!!!!!!!!!