In the chemical reaction in which carbon, hydrogen and oxygen absorb heat and combine to form carbon dioxide and water which of the following is considered to be a reactant?

A. heat

B. water

C. oxygen

D. carbon dioxide

True or false? Of all the rocky planets, Mercury is the one humans are most likely to colonize.

what chemical change occurs when a movie reactive substance replaces a less reactive substance in a compound

Explain why a law is accepted as facr, but a theory is not

A device for training astronauts and jet fighter pilots is designed to rotate the trainee in a horizontal circle of radius 11.0 m. if the force felt by the trainee is 7.

What is the volume of the cone? Round your answer to the nearest hundredth.

What types of energy transformations take place in a windmill

A shot is fired at an angle of 30 degrees with the horizontal from the top of a tower 182.88m. The velocity of projection is 60.90m/s. Find where from the foot of the tower it strikes the ground?

Evolutionary psychology is a relatively new approach to psychology that has been especially influenced by

In what ways are electromagnetic waves differed from mechanical waves? A. Electromagnetic waves can only travel through matter. B. Electromagnetic waves transfer matter through empty space. C. Electromagnetic waves are longitudinal waves D.

Describe the energy transfer when you touch a block of ice with your hand