If a catalyst is used in a reaction:
a. the energy of activation increases.
b. the reaction rate does not change.
c. the reaction rate increases.
d. the equilibrium shifts.

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils