Which of the following does not show the law of conservation of mass?
a. 24g of mg burn in 32g o2 to produce 56g of mgo
b. 24ml of mg burn in 32ml o2 to produce 56ml of mgo
c. 2 atoms of mg react with 1 molecule of o2 to produce 2 units of mgo
d. 1 atom of mg reacts with 1 atom of o to produce a unit of mgo that contains 2 atoms

Water changes bacteria in the soil converts this nutrient into a usable form. plants take up the usable nutrient through the soil and assimilate it into proteins, making it part of the plant. an animal eats the plants, and the nutrient becomes part of the animal. when the animal dies, it decomposes, returning the nutrient back to the soil. which cycle is being described? water cycle carbon cycle nitrogen cycle phosphorous cycle

Which is essential for finding the biomass of spinach

Enzymes are both ph and temperature specific. seen here are the reaction rates of three common digestive enzymes. based on the data, which enzyme's optimum activity occurs in a basic environment while another's is very acidic?