Chemical activity refers to the physical state of a substance.

Chemical activity is the measure of a substance's temperature.

Chemical activity describes the color of a chemical compound.

Chemical activity is the tendency of a substance to participate in chemical reactions.

NaCl2

NaClO

Na2Cl

NaCl

Higher temperatures decrease molecular movement and collision frequency.

Temperature has no effect on chemical reactions.

Lower temperatures increase chemical activity by speeding up reactions.

Higher temperatures increase chemical activity by enhancing molecular movement and collision frequency.

C2O

CO

CO3

CO2

Catalysts are consumed in the reaction process.

Catalysts increase the temperature of the reaction.

Catalysts change the products of the reaction.

Catalysts speed up chemical reactions by lowering activation energy.

H2S

H2SO4

H2O4

H2SO3

Concentration has no effect on the rate of a chemical reaction.

Lower concentration increases the rate of a chemical reaction.

Higher concentration increases the rate of a chemical reaction.

Higher concentration decreases the rate of a chemical reaction.

C6H12O6

C5H10O5

C6H12O5

C6H10O6

Increased surface area leads to higher chemical activity due to more frequent particle collisions.

Surface area has no effect on chemical activity regardless of the material.

Increased surface area decreases chemical activity due to fewer particle collisions.

Higher surface area results in slower reactions due to increased stability.