How many atoms in 2.8 mol of neon?

35 cm3 of a metal has a mass of 121 grams. whats is its density?

For the skeletal chemical equation Fe2P (s) + S (s) → P4S10 (s) + FeS (s) what is the coefficient of P4S10 in the balanced equation? (Balance the equation with the smallest possible whole number coefficients.) 1. 6 2. 18 3. 9 4. 2 5. 5 6. 10 7. 3 8.

Which of the following terms describes carbon tetrachloride (CCl4)

What do Potassium and Krypton have in common and what are their differences based on their location on the periodic table? Potassium (K) and Krypton (Kr) on in the same period, so they have the same number of electron shells.

Which element is most likely to be shiny? sulfur (S) boron (B) calcium (Ca) carbon (C) ?

What are some examples of things you expect to see when observing a chemical reaction?

Which of the following radioactive emissions is the least penetrating, aloha particles, beta particles or gamma rays

The three major groups p On the periodic table are the

Which of the following has the greatest mass, in grams? a. 1 atom of lead (Pb) b. 0.5 mol copper (Cu) atoms c. 0.3 mol gold (Au) atoms d. 25 atoms of mercury (Hg)

Which one is not a sedimentery rock a.) sandstone b.) limestone c.) quartz d. (coal