The reaction equation below shows the formation of aluminum oxide. Which set of coefficient balances the equation?

Al+O2? Al2O3

A) 1,1,1

B) 2,3,5

C) 2,4,5

D) 4,3,2

What was the year and location of james chadwick's experiment?

A sound wave is produced when a medium begins to blank.

The speed of an object determines the amount of inertia? True or False

6. Willingness to take turns is one way we can express our attitudes in A. nonverbal communication. B. body language. C. written language. D. spoken language.

Why might the united states goverment offer finacial benefits to people who install solar panels in their home? A. To encourge people to vote B. To discourage people from voting C. To encourge people to use solar power D.

A change from one form of energy into another is called a. gravitational potential energy. b. work. c. conservation of energy. d. an energy transformation

4. An airplane must achieve a velocity of 71 m/s for takeoff. If the runway is 1000 m long, what must the acceleration be?

As the average kinetic energy of the particles in a gas increases, which of the following occurs?

Power=170 watts time=20 seconds

What is the charge of alpha, beta and gamma rays?