The two kinds of plates in the plate tectonics theory are the:

A. Wegener

B. continental

C. sea floor

D. rift

How does calcium obey the octet rule when reacting to form compounds? A. It gains electrons. B. It does not change its number of electrons. C. It gives up electrons. D. It fills its valence level. E. It shares electrons.

What did Rutherford contribute to the model of the atom? A. The Proton B. The Neutron C. The Nucleus D. The Electron

When 35 g of a metal at 94 ◦c is added to 51 g of water at 22 ◦c, the temperature of the water rises to 27 ◦c. what is the specific heat capacity of the metal?

The density of water is 1.0gcm3 at 4∘C. What is the mass of 15mL of water at this temperature?

How many weeks does it take for one full moon to go to the next full moon

What will happen if we burn carbon monoxide In a closed room?

What elements does silver have.

What is the mass of 1 mole of carbon dioxide CO2?

An experiment is performed using 7 liquids; Methanol, Ethanol, Propanol, Butanol, Water, Pentane and Acetone. a.) The order of rates of evaporation from fastest to slowest are shown: Pentane, Ethanol, Methanol, Acetone, Water, Propanol and Butanol.

What does a molecule look like