Using the periodic table, complete the following.

Element: hydrogen

symbol: H2

Molecular weight:

Mass of one mole:

g/mol

Explain why NH3 has stronger intermolecular forces of attraction than Cl2

Which two factors are essential for a molecule to be considered polar?

If the pressure, volume, and the number of moles of a gas are known, which is needed to calculate the universal gas constant from the ideal gas law?

A controlled experiment has all variables held constant. a. True b. False

What is the percent by volume of 15.0 ml of ethanol in 0.250 l of water?

What kind or plate tectonic boundary is the san anfreas fault?

What is it called when the state of matter that keeps its shape and volume when it's placed in a different container

A 0.1 m solution of which salt is the most basic? (a) nano3 (b) naclo4 (c) nahso4 (d) nahco

How to conduct electricity with light bulb and battery

A cup can hold 50 ml of water and has a mass of 25g. If each penny weighs 2g, how many pennies can it hold before it sinks in fresh water? Explain how you got your answer.