How many moles of Ca3N2 will be produced if you react 6.3 moles of Calcium with an excess (more than you need) of Nitrogen? 3Ca + N2→ Ca3N2

a) 18.9 moles of Ca3N2
b) 6.3 moles of Ca3N2
c) 2.1 moles of Ca3N2

C

Explanation:

For every mol of Ca3N2 produced, you will need 3 mols of Ca

So the answer can be set up using a proportion.

3/1 = 6.3 / x               Cross multiply

3x = 6.3 *1                 Divide by 3

3x/3 = 6.3/3

x = 2.1

The answer is C

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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