HELP! BEST ANSWER GET A FOLLOW AND BRAINLIEST 40.2 grams of Hydrogen Chloride (HCl) is decomposed. 12 grams of Chlorine (Cl) is formed. How many grams of Water (H2O) was formed?

(please give an explanation if you can, itś ok if you can either though)

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand