Which of the following is a correct and balanced equation showing the reaction of calcium and oxygen? (while several of the equations may be balanced, only one has the correct products and reactants as well as being correctly balanced.) a. a. ca + o2 = cao b. b. ca + o2 = cao2 c. c. 2ca + o2 = 2cao d. d. 4ca + o2 = 2ca2o e. e. ca + o2 = ca2o 26-3.

Iwill give extra points to who gets this right

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

Which statements are true concerning mineral formation? check all that apply. the slower the cooling, the larger the crystals. the faster the cooling, the smaller the crystals. crystals formed from magma are smaller than crystals formed from lava. minerals can only form in solutions when the solution is heated deep underground. when a solution cools, elements and compounds leave the solution and crystallize as minerals. minerals formed from hot water solutions can form narrow channels in the surrounding rock.