The answer is covalent bonds.
Chemical energy is released from the breaking down of glucose.
Universal indicators are unsuitable for indicators because it has a range of colors.
basically, it changes from pink in alkali to colorless acid.
Answer:
Element and compounds are the pure substances but mixture is not a pure substance.
Explanation:
Element and compounds are the pure substances in which element comprise of only one atom while compound is formed by the chemical combination of more than one element in a fixed ratio by mass while mixture is also made up of more that one substances but they are combine physically not chemically. Elements, compounds, mixtures are very important because all the materials we used in our daily life are formed from elements, compounds and mixtures.
simple dimensional analysis:
8.2 grams * 1 mol / 22.99 grams * 6.02 x 10^23 atoms / mol = 2.1 x 10^23 atoms
