Which of the following most likely happens when the temperature of a chemical reaction is increased?

Molecules speed up?

Molecules stop reacting?

Reaction rate decreases?

Chemical reaction stops?

Which coefficient of O2 is needed to balance the equation C3H8 + O2 → 3CO2 + 4H2O? 2 3 5 6

Arrange the following according to their wavelength, starting with the shortest and going to the longest: radio waves, x--rays, gamma rays, visible light, microwaves, infrared light, ultraviolet light.

List two useful properties of current electricity and explain why.

You are wallpapering two walls of a room. One wall measures 15 ft by 12 ft and the other measures 9 ft by 12 ft. The wall paper costs $19.40 per roll, and each roll covers 50 square feet. What does it cost to cover the two walls?

Why does gum stick to a wall when you through it but when its wet it doesnt stick?

How does lubrication affect Friction?

A box is pushed 40 m by a mover. the amount of work done was 2,240 J. How much force was exerted on the box

How can the rate of a reaction be increased? a. having more surface area b. Lowering the temperature c. diluting a solution d. decreasing the amount of reactants

A car traveling on a street stopped 30 meters after the brakes were applied. About how fast was the car traveling?

Why is it recommended that windows face north in Alice Springs, Australia for passive solar heating?