What coefficients would balance the following equation?

__Al + __O2 → __Al2O3

A. 2Al + 3O2 → 1Al2O3

B. 2Al + 3O2 → 2Al2O3

C. 3Al + 3O2 → 2Al2O3

D. 4Al + 3O2 → 2Al2O3

In the sentence "the function of rbcs is to transport oxygen throughout the body," what does the word function mean?

Trace fossils are recognized as evidence of which pre-existing life? plants plants and animals neither plants nor animals animals

A wave with a short wave length will also have ... ?

A thermometer that shows temperature as the height of a column of liquid is an analog device because its measurements a. change in steps. b. change continuously. c. are in degrees. d. do not rely on electric current.

Elements on the Periodic Table of the Elements are classified into categories such as (1) rocks and minerals (2) molecules and atoms (3) mixtures and compounds (4) metals and nonmetals

According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away. A) As the source approaches you, the sound waves are compressed so the pitch of the noise increases.

If you have a beam perfectly balanced on a fulcrum and put a weight at the very end of one side, is there a way to know where you should put a heavier object on the other end?

Most of the Earth's volcanoes occuWhen fossils or minerals form, certain unstable elements are sometimes locked into them.

a man is standing on the edge of a 20.0m high cliff. he throws a rock vertically with an initial velocity of 10.0m/s. how high does the rock go?

The slope of a velocity time graph over any interval of time gives the during that interval