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Law Incorporation [45]
4 years ago
9

When water vapour condence,it forms a tiny dro of water that forms clouds.When do these droplets come down as rain?

Chemistry
1 answer:
muminat4 years ago
7 0
<span>As water evaporated, it rises up to the sky and condenses to form clouds. This is known as "condensation," which is one of the steps in the water cycle. Once the collected droplets become too heavy to remain in the sky, they fall back down to earth. This is known as "precipitation."</span>
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Given: CaC2 + N2 → CaCN2 + C In this chemical reaction, how many grams of N2 must be consumed to produce 265 grams of CaCN2? Exp
weeeeeb [17]

Answer : The grams of N_2 consumed is, 89.6 grams.

Solution : Given,

Mass of CaCN_2 = 265 g

Molar mass of CaCN_2 = 80 g/mole

Molar mass of N_2 = 28 g/mole

First we have to calculate the moles of CaCN_2.

\text{Moles of }CaCN_2=\frac{\text{Mass of }CaCN_2}{\text{Molar mass of }CaCN_2}=\frac{265g}{80g/mole}=3.2moles

The given balanced reaction is,

CaC_2+N_2\rightarrow CaCN_2+C

from the reaction, we conclude that

As, 1 mole of CaCN_2 produces from 1 mole of N_2

So, 3.2 moles of CaCN_2 produces from 3.2 moles of N_2

Now we have to calculate the mass of N_2

\text{Mass of }N_2=\text{Moles of }N_2\times \text{Molar mass of }N_2

\text{Mass of }N_2=(3.2moles)\times (28g/mole)=89.6g

Therefore, the grams of N_2 consumed is, 89.6 grams.

5 0
3 years ago
Read 2 more answers
** WILL MARK BRAINLIEST **
steposvetlana [31]

The answer is excess reactant

4 0
3 years ago
Read 2 more answers
Given the following chemical equation, determine how many grams of N2 are produced by 9.24 of H2O2 nd 6.56g of N2H4?
valkas [14]
The balanced chemical equation will b
N2H4 + 2 H2O2-> N2 + 4H2O
 so first of all we have to find the limiting reactant.
so for this 

9.24 g H2O2 ( 1 mol / 34.02 g mass of H2O2 )
 = 0.27 mol H2O2
Now
6.56  g of  N2H4 ( 1mol / 32.06) = 0.20 mol N2H4

so from the above reaction we found 1:2 ratio of the reactants
 so the limiting reactant is hydrogen peroxide. by using this we will find the amount of N2 produced.
so that will be

<span>0.27 mol H2O2 ( 1 mol N2 / 2 mol H2O2 ) ( 14.01 g N2 / 1 mol N2)
 =1.89 g N2
hope it helps</span>
8 0
3 years ago
Read 2 more answers
The density of gold is 19.3 g/cm3, and the density of iron pyrite is 5.02 g/cm3. What substance do you think you found?
Harrizon [31]

Answer:

Step 1

1 of 2

V = m / D; V (nugget of gold) = 50 g / 5.0 g / cm 3 = 10 cm3; V (nugget of iron pyrite) = 50 g / 19 g / cm3 = 2.63 cm 3

Result

2 of 2

Due to these results you can conclude that nugget of gold which volume is 10 cm3 is bigger than volume of nugget of iron pyrite which is 2.63 cm3.

Explanation:

4 0
3 years ago
Chemical properties
ehidna [41]
The answer is C

Chemical properties or chemical changes are the ones which include changes that alter the identity of a substance. For example: burning of any substance which is also called combustion. You burn a piece of paper it changes its identity. It was cellulose fibres earlier now it’s ash after burning.
You burn petrol it was mixture of hydrocarbons but when burnt it changes to smoke which is just gases like carbon dioxide or nitrogen oxides. This is a chemical change




Changing of states is a physical change not chemical change. Think of meeting of ice the water molecules which were in solid state after melting become water molecules in the liquid state. Similarly, the evaporation or boiling will change the water molecules in the liquid state to the gaseous state also called its vapor state. These do not change identity it’s just the water molecules always may it be any state, solid, liquid or gaseous. So, boiling point and melting point are physical properties not chemical. The identity remains same during these processes.


Mass and color are not chemical properties. They don’t change identity when you measure them. If you weigh yourself on weight u won’t change into something else.
8 0
3 years ago
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