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QUESTION

7 1) Explain the difference between an exothermic reaction and an endothermic reaction. 2) Ammonia is prepared from nitrogen and hydrogen according...

c.7

1)

Ammonia is prepared from nitrogen and hydrogen according to:

N2 + 3H2  -----> 2NH3

Calculate the quantity (grams) of ammonia formed from 12.0 g hydrogen.

3) Hydrogen and oxygen react to form water according to:

2H2  + O2  ----->  2H2O

How many moles of water are formed when 2.5 mole oxygen reacts?

4) When the following reaction is balanced, what is the sum of the coefficients?

Al2(SO4)3  + NaOH ------> Al(OH)3 + Na2SO4

What type of reaction does the equation represent?

5)

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