The answer is Dischotomous Key.
Answer/explanation :
N2 + 3H2 ---------> 2NH3
The reactant is N2 + 3H2(both are gases)
The product is 2NH3
This kind of reaction is called an equilibrium. It can also be affected by temperature and pressure.
What are reactants??
reactants are substances that are present at the start in a chemical reaction and are consumed during the reaction to make products.
Note: in every chemical reaction, there is always a reactant and a product, it can a combination of a gas, solid or liquid.
Repost, I might can help.
Answer:To initiate an immune response and antibody production
Explanation:Immunization is the process whereby a person is made immune or resistant to an infectious disease, typically by the administration of a vaccine. Vaccines stimulate the body's own immune system to protect the person against subsequent infection or disease.
Answer:
C, distance
Explanation:
Distance and mass are two major factors that affect the strength of the gravitational force.
