In the reaction k2cro4(aq) + pbcl2(aq) → 2kcl(aq) + pbcro4(s), how many grams of pbcro4 will precipitate out from the reaction between 500.0 milliliters of 3.0 m k2cro4 in an excess of pbcl2?
1.5 grams
3.0 grams
480 grams
150 grams

If a || b and e || f, what is the value of y ?

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.