All categories

2 years ago

What layer in the atmosphere has rain clouds

Chemistry

2 answers:

Ilya [14]2 years ago

4 0

Troposphere has the most rain clouds

Hitman42 [59]2 years ago

3 0

Troposphere has most of our clouds temperature etc

You might be interested in

Select the correct answer. Thomas has 235 grams of K2S in the chemistry lab. How many atoms of potassium (K) are in 235 grams of

Readme [11.4K]

Atoms are the smallest division of the element. The potassium atoms present in the 235 gm of the compound is $2.57 \times 10^{24}$ atoms.

<h3>What is the number of atoms?</h3>

Given,

Mass (m) of Potassium sulfide $(\rm K_{2}S)$ = 235 gm
Molar mass (M) of Potassium sulfide = 110.26 g/mol

Calculate the number of moles as:

$\begin{aligned}\rm Moles (n) &= \dfrac{\rm mass}{\rm molar\;\rm mass}\\\\&= \dfrac{235}{110.26}\\\\&=2.13\;\rm mol\end{aligned}$

In the given compound $\rm K_{2}S$ , there are two atoms of potassium and one atom of sulphur.

If, 1 mole = $2 \times 6.022 \times 10^{23}$ atoms of potassium

Then, 2.13 moles = X atoms

Solving for X:

$2.13 \times 2 \times 6.022 \times 10^{23} = 2.57 \times 10^{24}$

Therefore, option c. $2.57 \times 10^{24}$ is correct.

Learn more about atoms here:

brainly.com/question/11411852

6 0

2 years ago

Air-bags can be inflated by the decomposition of sodium azide, NaN3. At 25.0◦C and 1.10 atm, what volume of N2(g) is produced by

Mashcka [7]

Answer:

V = 36.7L of $N_{2}$

Explanation:

1. Write the chemical reaction for the decomposition of sodium azide:

$_{2}NaN_{3}(l)=_{2}Na(s)+_{3}N_{2}(g)$

2. Find the number of moles of $N_{2}$ produced by the decomposition of 71.4g of $NaN_{3}$ :

$71.4gNaN_{3}*\frac{1molNaN_{3}}{65gNaN_{3}}*\frac{3molesN_{2}}{2molesNaN_{3}}=1.65molesN_{2}$

3. Use the ideal gas equation to find the Volume of $N_{2}$ occupied by 1.65 moles of $N_{2}$ , at the temperature and pressure given by the problem:

$PV=nRT$

Solving for V:

$V=\frac{nRT}{P}$

Converting the temperature from ◦C to K:

25◦C+273.15=298.15K

Replacing values:

$V=\frac{1.65mol*(0.082\frac{atm.L}{mol.K})*298.15K}{1.10atm}$

V=36.7L of $N_{2}$

4 0

3 years ago

write the net ionic equation (including phases) that corresponds to Cu(ClO4)2(aq) + Na2CO3(aq)-------->CaCO3(s) + 2NaClO4(aq)

soldier1979 [14.2K]

Complete ionic:
Cu(aq) + 2Cl(aq) + 8O(aq) + 2Na(aq) + C(aq) + 3O(aq) = CaCO3(s) + 2Na(aq) + Cl(aq) + 4O(aq)

Net ionic:

Cu(aq) + Cl(aq) + 4O(aq) + 2Na(aq) + C(aq) + 3O(aq) = CaCO3(s)

So write everything out as IF it will dissociate in water. So everything that is aq splits but solid just floats to the bottom of the mixture. Cancel what you can (in this case the two from the ClO4 on the left of the equation cancels with the ClO4 from the right) and the 2Na cancels. Then, write out the whole solution and you are done!

3 0

2 years ago

CN- is a Bronsted - Lowry base. What will this substance form when it accepts a proton?

sergejj [24]

It will form HCN Hydrogen Cyanide.

8 0

2 years ago

How does evaporation lead to precipitation

Serhud [2]

Answer:

1.evaperation

2.condenstation

3.precipatation

Explanation:

So I guess condenstation leads to precipatation-

5 0

2 years ago

Read 2 more answers