One mole of neon gas equals how many grams?

a. 14.01 g

b. 20.18 g

c. 58.71 g

d. 144.24 g

Magnesium has a density of 1.071g/cm^3. Aluminum has a density of 2.700 g/cm^3. An unknown metal has a mass of 15g and a volume of 14cm^3. Is the unknown metal magnesium or aluminum? Show your work.

Why burning methane does not produce acid rain

If a sample has a mass of 245.8 grams and takes up 94ml of space, what is the density of the sample?

A phase diagram shows phase changes of a substance by illustrating which of the following? A. pressure vs. time B. pressure vs. density C. temperature vs. time D. pressure vs. temperature

Which formula is an empirical formula? a) C4H10 b) C3H6 c) CH4 d) C2H6 (the numbers should be smaller)

What statement correctly defines dynamic equilibrium

Will Al and s for an ionic compound

The radioactivity due to carbon-14 measured in a piece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produced 160 counts

How do the amino acids lysine and alanine combine to form a dipeptide?

Does an oxygen atom form two covalent bonds?