Which statement is true about a catalyst?

A) It decreases the rate of a reaction.

B) It remains unused during the reaction.

C) It reduces the collisions between reactants.

D) It changes the final products of the reaction.

What describes the rate of a nuclear decay reaction? A. The reaction rate can be affected by temperature and pressure. B. The reaction rate can be affected by the amount of reactant remaining. C.

What is conductivity?

What is density of a mineral?

When calcium metal is placed in water, hydrogen gas bubbles out, leaving a highly alkaline (basic) solution. Write the balanced chemical equation for this reaction. Phases are optional. Do not write an ionic equation (i. e.

Matthias wants to dissolve a solid sample of calcium chloride (cacl2), which is an ionic compound. Which solvent will dissolve the sample of calcium chloride? Solid copper water, a polar solvent hexane, a nonpolar solvent liquid mercury

What are the relative numbers of h3o + and oh - ions in an acidic and alkaline and a neutral solution?

Chloroform was used as an anesthetic for childbirth and surgery during the nineteenth century. Write the molecular formula of chloroform.

Why are alloys generally used to make everyday objects

What types of matter could be separated by physical methods?

What information does a net ionic equation give that a complete ionic equation does not show