What is the chemical formula for washing soda used in cleaning?

What is the role of a catalyst in a chemical reaction?

Which element is a semiconductor and is the main component of computer chips?

Which type of reaction absorbs energy from the surroundings causing the temperature to fall?

What is the chemical name of the compound with formula CuSO4?

Which type of reaction releases energy to the surroundings causing the temperature to rise?

Which test is used to detect the presence of starch using iodine solution?

What is the SI unit of the amount of substance in chemistry?

What is the chemical formula for sulfur dioxide a gas that causes acid rain?

Which type of chemical formula shows the simplest whole number ratio of atoms in a compound?

Which acid is used in car batteries as the electrolyte?