1. How many periods make up the periodic table?

What are clouds that form near the ground and look like fluffy heaps of cotton called?

If a plant cell was an office building what were the chloroplasts be? (and why?)

The gram formula mass of NH4Cl is (1) 22.4 g/mole (3) 53.5 g/mole (2) 28.0 g/mole (4) 95.5 g/mole

The total pressure in a 11.7 L car tire is 44 psi at 11 degrees Celsius. How much does the pressure in the tire rise if its temperature increases to 37 degrees Celsius and the volume remains at 11.7 Liters?

Which milligram quantity contains a total of four significant figures A) 3,100 B) 30,001 C) 3,010 D) 0.3010

Which type of wave cannot move without a medium in which to travel? Heat waves Light waves Sound waves Transverse waves

Which describes the burning of fossil

The flow of energy in an ecosystem is the best described as energy moving in

Which bond other than the c-c bond is the least polar in the molecule?

The warmest temp ever measured in the us is 134 degrees F. Convert that temp to C and K