1. What is the mass of 2.23 x 1023 atoms of sulfur? 2. How many formula units of silver fluoride, AgF in 42.15 g?

3. How many molecules are there in a 42.3 g sample of water, H2O?

4. What is the mass in grams of 9.80 x 1023 formula units of Zinc Chlorate, Zn(ClO3)2?

5. How many molecules are in 189 g of carbon tetrabromide, CBr4?

Complete the sentence. the lower the hydrogen ion concentration, the the ph. higher lower closer to 7 closer to 0

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

Which element forms a compound with chlorine with the general formula mci?