Dilutions

How much water should be added to 10 mL of 2 M HCl to make 0.2 M HCL?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

All motion is caused by force? true or false