Which is usually associated with a slower reaction rate?
a. adding heat energy to the reactants
b. using a crushed solid in the reactants
c. refraining from using a catalyst in the reactants
d. using a highly concentrated solution of the reactants

Aspaceship starting from a resting position accelerates at a constant rate of 9.8 meters per second per second. how far will the spaceship travel if its final speed is 1 percent the speed of light (300,000,000 m/s)? a. 3.1 × 106 m b. 2.94 × 108 m c. 7.8 × 1010 m d. 4.6 × 1013 m