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

For an object starting from rest and accelerating with constant acceleration, distance traveled is proportional to the square of the time. if an object travels 2.0 furlongs in the first 2.0 s, how far will it travel in the first 4.0 s?

What is the connection between mass and the amount of matter in a solid liquid or gas

The internal energy of a system is increased by 1200 J when 500 J of work is done on the system. How much energy is transferred from the system as heat?

What instrument is normally used to measure atmospheric pressure? a. thermometer b. barometer c. hydrometer d. spectrometer

Which of the following is a disadvantage associated with scientific advances? a. decreased urbanization b. increased energy efficiency c. increased waste production d. increased renewable resource use

The basic building block of life is

What is the reason for Mary's resemblance to her mother. Mary's relatives and friends feel she had her mothers feature

Is a balance scale used to describe how much matter is in an object

At distances greater than 2 femtometers, the nuclear strong force is stronger than (select all that apply): gravity electromagnetic forces nuclear weak force none of the above

Identifying the Functions of Parts of the Ear Which part of the ear changes sound to a signal that the brain can understand? Which part of the ear carries the signal to the brain?