Why is cholesterol important for the body a. estrogen and testosterone are created from it b. it prevents the body from making too much vitamin d c. it reduces the mellow steroids taken up by the body d. membrane phospholipids are crated from it

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

Reduction is a reaction which results in a in electrons and a in positive charge of the atom or ion 1) a- loss 1) b- gain 2) a-increase 2) b-decrease