How many atoms are in a sample of copper with a mass of 18.46 grams?
2.how many formula units are in a sample of salt with a mass of 67.69 grams?
3.how many molecules are in a sample of water with a mass of 44.99 grams?
4.what is the mass in grams of 0.250 moles mg? 5.how many moles are there in 48.096 grams of sulfur?
6.what is the mass of 24.6 formula units of magnesium oxide?
7.how many molecules of dinitrogen pentoxide are contained in 123.46 grams of dinitrogen pentoxide?

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

If 16.00g of hydrogen gas reacts with 126.73g of oxygen, how many grams of water are yielded? (both reactants are completely consumed in the reaction.)