Question 11 MarkDecomposition reactions generally take place in the presence of light.AnswerTrue.View full question & answer→
Question 21 MarkIn a combination reaction, a new compound is formed.AnswerTrue.View full question & answer→
Question 31 MarkIn a skeletal equation, the mass of the reactants is equal to the mass of the products.AnswerFalse. In a skeletal equation, the mass of the reactants is not equal to the mass of the products.View full question & answer→
Question 41 MarkNew substances are formed during a chemical reaction due to the rearrangement of the atoms of the original substances.AnswerTrue.View full question & answer→
Question 51 MarkThe law of conservation of mass states that mass is neither created nor destroyed.AnswerTrue.View full question & answer→