I really need help catching up!! Ill give medals!!Please help!

If 2 molecules of one reactant combine with 5 molecules of another to produce 3 molecules of a product, then which of the following is the correct representation of the reaction?
(Points : 3)
2A + 5B 3C

2A + 3B 5C

A2 + B3 C5

A2 + B5 C3

Question 2. 2. If a sample of nitrogen gas (N2) contains 3.0 × 1024 atoms of nitrogen, then about how many moles of nitrogen gas are in the sample?
(Points : 3)
1.0

2.5

3.0

5.0

Question

I really need help catching up!!  Ill give medals!!Please help!


If 2 molecules of one reactant combine with 5 molecules of another to produce 3 molecules of a product, then which of the following is the correct representation of the reaction?
 (Points : 3)  
       2A + 5B  3C

        2A + 3B  5C

        A2 + B3  C5

        A2 + B5  C3

 
 Question 2. 2.  If a sample of nitrogen gas (N2) contains 3.0 × 1024 atoms of nitrogen, then about how many moles of nitrogen gas are in the sample?
 (Points : 3)  
       1.0

        2.5

        3.0

        5.0

batman* · Answer

first one is c