Mg metal reacts with hcl to produce hydrogen gas. mg(s)+2hcl(aq)→mgcl2(aq)+h2(g) part a what volume of hydrogen at 0 ∘c and 1.00 atm (stp) is released when 9.45 g of mg reacts? express your answer with the appropriate units.

What happens when an acid dissolves?

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.

Quickly what are the following of organisms that existed over a wide area but only for a limited time period called a. soft fossils b. mold fossils c. index fossils d. trace fossils