In which way does a balanced chemical equation demonstrate the conservation of matter A. It shows how matter can be both be created and destroyed by a chemical change
B. It shows the same number of molecules of each compound on both sides
C. It shows how the atoms of an element can appear on only one side of the equation
D. It shows the same number of atoms of each element on both sides of the equation

the subject is science

Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions. SO the Answer is D

the answer

explanation:

the capillary tube was too close to the bottom of the beaker.

the ruler may have moved.

water got into the capillary tube.

the temperature was not allowed to equilibrate in the 2-4 minutes.

not clear