Which type of reaction occurs when a more reactive metal displaces a less reactive metal from its salt solution?

Which element in Group 1 of the periodic table reacts most vigorously with water?

What is the chemical symbol for lead?

Which acid is found naturally in vinegar?

Which type of chemical reaction involves a substance combining with oxygen to release energy?

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

Which element has the chemical symbol Fe?

What is the concentration of a solution measured in moles per litre called?

Which element is the most abundant in the universe?

Which polymer is used to make plastic water bottles and is identified by recycling code 1?

What is the IUPAC name for the simplest hydrocarbon with formula CH4?