Why are nutrient molecules important?
a. the body breaks down the molecules into the molecules it needs.
b. the body combines the nutrient molecules and elements.
c. the nutrient molecules are not important.
d. the body eats the molecules.

What is the name of this hydrocarbon?

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)

How do you know when a chemical reaction has occurred