one of the decay products of 238u is 226ra . a rock originally contained 238u , which has a half-life of 4.5×109 yr, and 226ra , which has a half-life of 1,600 yr. after 5×109 yr, which isotopes would you expect to be present in significant amounts in the rock?

H2so4(aq) + mg(s)—> mgso4(aq) +h2(g) which substance is the acid in the reaction?

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

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution