Astudent placed 3.0 grams of mg into some hcl in two different experiments. in each case, it reacted according to the following equation: mg(s) + 2hcl(aq) → mgcl2(aq) + h2(g). in the first experiment, it took 32 minutes for all of the mg to react. in the second experiment, it took 54 minutes for all of the mg to react. which of the following could account for the change in reaction rate of the second experiment?

In a spacecraft, the following reaction occurs: co2(g) + 2lioh(s) -> lico3(s) + h2o(i) (i attached picture of equation) how many liters of carbon dioxide will 4 moles of lithium hydroxide (lioh) absorb? (one mole of any gads occupies 22.4 l under certain conditions of temperature and pressure. assume those conditions for this equation.) 45l 6.0l 3.0l 34l

What is the mass of 0.46 mol of mgcl2

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.