In a nuclear reaction, which of the following must be conserved?

A. energy

B. mass

C. charge

D. the number of electrons

A gas's pressure is 765 mm Hg at 23°C. At what temperature in celsius will the pressure be 560 mm Hg?

Round off each of the following numbers to two significant figures: (a) 517 (b) 86.3 (c) 6.382 x 103 (d) 5.0008 (e) 22.497 (f) 0.885

Solutions of hydrochloric acid caused the light bulb to glow brighter than solutions of acetic acid. how do you account for the difference in behavior between these two compounds?

Pressure and volume changes at a constant temperature can be calculated using Select one: a. Charles's law. b. Kelvin's law. c. Dalton's law. d. Boyle's law.

What is the phase change from liquid to gas? A. Vaporization B. Condensation C. Transpiration D. Sublimation

A 25 N and 5 N force pull to the right. Friction is 10 N. If the object is 5 kg, find the net force and acceleration.

What properties of matter are intensive independent of their size

What is the density of an object having a mass of 8.0g and a volume of 25cm3

What is a Cilla? (In drawing)

Which term names the group of organisms able to interbreed and produce fertile offspring?