The reaction of 2h2+o2-->2H2o + heat is

A exothermic

B catalyze

C liquid reaction

D endothermic

E none

Compare and contrast the physical properties of solids, liquids, and gases.

Which has not been a major source of CFCs

What form of pollution, if any, does each energy source cause

A walkman uses a current of 2.0 A and has an internal resistance of 3.0 Ω, how many 1.5V batteries are required?

What was Ernest Rutherford's experiment? O A. He measured the electricity produced when light hit metal. B. He measured the bending of a cathode ray caused by electricity. ) C. He shot tiny alpha particles through a piece of gold foil. D.

In this experiment, you will measure mass and volume of various sport balls, both regularly shaped ball and irregularly shaped.

An atom that has a negative four charge will have one of the following? A. 4 more protons than electrons B. An equal amount of protons and electrons C. 4 more electrons than protons D. 2 more neutrons than protons

The distance from santa maria to los Alamos is 15.9 mi. what is the distance in cm?

50*12*1 over 100 slove

Radiation used in the processing of food is intended to