A gas has a volume of 2L at STP. How many moles of the gas are present?

If there is a loss of 5.63 x 10 - 7 kg of mass in a nuclear reaction, how many joules of energy would be released? Recall that C equals 3 times 108 m / s.

In a chemical formula such as C6H12O6 and H2O, what do you call the little numbers below the normal line of text. subscript number, superscript numbers

Instruction Active Identifying Direction of Heat Flow Scenario Object 1 Object 2 Indicate the direction of heat flow in each scenario.

Identify an environmental condition in the ecosystem above and how it can affect the ecosystem

Mass=35g Density=5g/cm3 What is the volume?

Determine the name of the compound Li2O

Complete the reactions to show how butanoic acid may be converted to phenyl propyl ketone.

As a sample of the radioactive isotope 131I decays, its half-life (1) decreases (2) increases (3) remains the same

How many Joules of energy are required to change 10.0 gram of ice at - 2.0 C to water at 20.0 C? (use your constants) 440 J 66,000 J 880 4220 J

Why are Van der Waals forces important? A) They determine how strong dipole moments will be in polar covalent molecules B) They are the strongest type of intermolecular force that can act on polar and non-polar molecules C) They are primary