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

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

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

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

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

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

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

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

Which acid is used in car batteries as the electrolyte?

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

What is the chemical formula for calcium hydroxide also known as slaked lime?