Part of the experiment that is used as a comparison to see if they independent variable caused a change

Calcium phosphate reacts with sulfuric acid to form calcium sulfate and phosphoric acid. What is the coefficient for sulfuric acid when the equation is balanced using the lowest, whole-numbered coefficients?

Why can an increase in temperature lead to more effective collisions between reactant particles and an increase in the rate of a chemical reaction?

The periodic table shows that a carbon atom has six protons. This means that a carbon atom also has ...

A 675 mL sample of a gas is cooled from 75°C to 25°C at constant pressure. What is the new volume of gas?

Hugh dissolved 2 grams of sugar in 500 grams of water. What was the mass of the solution formed?

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

What is the molality of a solution containing 4.0 moles of solute in 3.2 kg of solvent? Round to the nearest tenth. Don't forget the units.

What is the name of a binary compound made up of lithium and chlorine?

A scientist in London and a scientist in California both conducted independent investigations that produced similar results.