How is a compound different from a mixture? A. Mixtures are created through physical changes; compounds are created through chemical reactions.

B. Compounds are created through physical changes; mixtures are created through chemical reactions.

C. Mixtures, on average, are heavier than compounds.

D. Compounds, on average, are heavier than mixtures.​

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

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

Enzymes affect the reactions in living cells by changing the