Biology, 13.11.2020 23:40 ryanbransky

In the chemical reaction below, calcium (Ca) and water (H2O) react to form calcium hydroxide (Ca(OH)2) and hydrogen gas (H2). Ca (s) + 2H2O (l) → Ca(OH)2 (aq) + H2 (g)

Calcium and water are the reactants in this chemical reaction, whereas calcium hydroxide and hydrogen gas are the products that are formed. Once the reaction reaches completion,
A.
the total mass of the products will be less than the original mass of the reactants.
B.
the products of the reaction will have changed back into the reactants.
C.
the total mass of the products will be equal to the original mass of the reactants.
D.
the total mass of the products will be greater than the original mass of the reactants. A B C D WHICH ONE?

Answers: 1

Show answers

Another question on Biology

Biology, 21.06.2019 19:40

Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.

Answers: 1

Answer

Biology, 22.06.2019 09:00

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

Answers: 1

Answer

Biology, 22.06.2019 13:00

Which particle controls what element an atom is?

Answers: 1

Answer

Biology, 22.06.2019 14:00

Organelles found in plant cells that function through photosynthesis to produce glucose from carbon dioxide and water are called — question 21 options: chloroplasts guard cells photosynthons

Answers: 1

Answer

You know the right answer?

In the chemical reaction below, calcium (Ca) and water (H2O) react to form calcium hydroxide (Ca(OH)...

Questions