Which of these has the most chemical energy?

A. a candy bar

B. a gold brick

C. a gallon of milk

D. a gallon of gasoline

Unlike a phonograph record that has a constant angular speed, a CD scans information at a constant linear speed (130 cm/s). Does a CD therefore rotate at a constant angular speed, or varying angular speed?

What is the temperature of a system in thermal equilibrium with another system made up of ice and water at 1 atm of pressure? a. 0°F c. 0 K b. 273 K d. 100°C

One method used to determine the volume of solids and liquids is displacement. a. True b. False

What happens when a gas is exposed to a small flame. list as many results.

A tank originally contains 100 gal of fresh water. Then water containing 1/2 lb of salt per gallon is poured into the tank at a rate of 2 gal/min, and the mixture is allowed to leave at the same rate.

Elements have the same number of __as you move from left to right

What occurs when a liquid changes to a gas below its surface as well as on the surface? a. Sublimation b. Boiling c. Condensation d. Evaporation

Theory that many different realities are happening at once True or false

Which of the following is not shorthand to describe one of the three types of ecological relationships? +/+ -/+ +/0 -/0

Which of the following is the strongest claim? A. a claim that has been made multiple times by the smartest scientist B. a claim that is supported by a complex experiment that lasted 6 months C.