What gas is produced when calcium carbonate is heated strongly in thermal decomposition?

What is the lightest element in the periodic table?

Which element is essential for synthesis of haemoglobin and its deficiency causes anaemia?

What is the name of the horizontal rows in the periodic table?

Which polymer is used to coat non-stick cookware due to its very low friction coefficient?

What does Avogadro's number represent?

What is the chemical formula for ethanol the type of alcohol found in beverages?

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

Which element is a liquid at room temperature and is used in thermometers?

Which law states that matter can neither be created nor destroyed in a chemical reaction?

What is the chemical formula for sulfuric acid?