How many hydrogen (H) atoms are there on the reactant side? on the product side? N2 + H2 --> NH3

2; 3
3; 2
1; 3
3; 1

Identify the function that contains the data in the following table: x     -2         0         2         3         5     f(x)     5         3         1         2         4     possible answers: f(x) = |x| + 1 f(x) = |x - 2| f(x) = |x - 2| - 1 f(x) = |x - 2| + 1