True or False type questions:
1 During a chemical reaction, the law of conservation of matter holds good
2 A large quantity of heat is absorbed when a small quantity of water is added to quickline
3. A reaction is discribed in terms of names of the reactants and products
Answers
Answer:
Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions. 1) t
2] t
3]f
Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations.
According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.
The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction.