Hot Student Stories

Which statement describes a chemical property of water? It reacts with sodium metal. It has a melting point of 0°C. It has a density of about 1 g/mL. It is clear and colorless.

Mindee Nelson

in Chemistry

1 answer

1 answer

Donald Ward on October 3, 2018

Answer: the first option, Which reacts with the metallic sodium.Explanation:the Chemical properties are those that are manifested only as part of a chemical reaction, which means that the composition of the water molecules will change: some of the chemical bonds are broken and others are formed, the transformation of some pure substances (elements, such as sodium or compounds, such as water) in one or more pure substances. The water has the ability to react with metallic sodium to form sodium hydroxide and hydrogen gas according to the reaction:Na(s) + H₂O (l) → NaOH (aq) + H₂ (g).The products formed have different compositions and different physical and chemical properties of the reactants from which it originated. This is what a chemical change means.2) on the other hand, the melting point of 0°C, the density of about 1 g/mL, and that it is transparent and colorless, are all the physical properties, as can be assesed without changing the composition of the water.

Add you answer