20 gram of marble containing 90% calcium carbonate is allowed to react with 50 gram of a concentrated acid containing 36.5% HCl by mass. find the limiting reactant ,find number of mole of excess reagent left over reacted, find the mass of salt in gram and find volume of carbon dioxide gas liberated at NTP plz help me pl​

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)