Answer ! i'm on a timer consider the equations below. (1) ca(s) + co2(g) + 1 2 o2(g) → caco3(s) (2) 2ca(s)+o2(g) → 2cao(s) how should you manipulate these equations so that they produce the equation below when added? check all that apply. cao(s) + co2(g) → caco3(s) reverse the direction of equation (2) multiply equation (1) by 3 multiply equation (2) by 1/2

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

Fugu, also known as puffer fish, is a sushi delicacy that can also be lethal. puffer fish contain a powerful toxin that can kill an adult a few hours after ingestion. sushi chefs who prepare fugu must be specially trained because any contamination of the toxin-free areas of the fish can be deadly. recently this toxin has been put to good use, as scientists have discovered that a purified form of it can treat severe pain in cancer patients. this recent scientific discovery would fall under which area of chemistry? applied biochemistry pure organic chemistry pure physical chemistry applied inorganic chemistry