Question

A)
Which phrase defi nes
bond energy
?
(1 point)
energy input needed to break reactant bonds
energy required to break a chemical bond
energy output when product bonds form
energy stored in chemical bonds
A)
Catalysts speed up chemical reactions. Which change is a likely direct eff ect of a catalyst?
(1 point)
decreasing activation energy
increasing activation energy
increasing chemical potential energy
decreasing chemical potential energy

Answer 1

1) energy required to break a chemical bond

2) decreasing activation energy