7. What are the coefficients needed to balance the following chemical equation? N2+ H2 + NH3
a. 1,2,3
b. 1,3,2
c. 1,3,3
d. 2,2,3

How many neutrons does a atom of cobalt have?

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.