What is the source of the Litmus Paper explain its use

Table salt can be separated into sodium and chlorine. Sodium is explosive. Chlorine is a gas that can kill people. What can be concluded from the statements above? A. A harmful compound can become harmless when its elements are separated. B.

The modern atomic model states that electrons move sort of like what?

What is the most likely evidence of an energy transformation taking place when a skater glides over ice? A. Skating blades become cold as kinetic energy is transformed into thermal energy B.

Why is CO2 a pure substance?

I need to find the amount of molecules in 4.5g of water. I only want to check my answer: 1.505 * 10^22 right?

The Arrhenius theory explains the behavior of (1) acids and bases (2) alcohols and amines (3) isomers and isotopes (4) metals and nonmetals

Dalton's atomic theory

Describe how food is digested and absorbed

If a solution A has twice as much solute as solution B. Is it possible for the solutions to have the same concentration?

Chris is studying oxidation and reduction reactions. Which of the following could she use as an example of an oxidation reaction?