How does the Law of conservation relate to the reactants and products in a chemical reaction?

Answer 1

The law of conservation of mass states that matter is neither created nor destroyed in a chemical reaction (in a nuclear reaction it is a different matter). Therefore the total mass of the reactants equals the total mass of the products. This law is hard to grasp by some since some reactions are gas creating reactions, and most reactions occur in open systems; Therefore, the gas escapes and cannot be weighed properly, but mass is still conserved.

Answer 2

In a chemical reaction, the law of conservation of mass must be followed: no matter may be destroyed OR created (the mass cannot change). In writing chemical equations, the mass of the left side must equal the mass on the right side. This also must be true of the number of each element. To follow the law of conservation of mass, coefficients must be used. Coefficients do NOT change the formula, just the relative amount of each substance (number of moles present). Example: Hydrogen gas (H2) and oxygen gas (O2) react to form water (H2O). H2+O2 -> H2O (this equation is not balanced as there are 2 oxygen on the left and 1 on the right) --multiply H2O by 2 H2+O2 -> 2H2O (not balanced as there are 2 hydrogen on the left and 4 on the right) --multiply H2 by 2 2H2+02 -> 2H2O (balanced equation)

Answer 3

Atoms cannot be created or destroyed by chemical reactions.

Explanation...

The law of conservation of matter states that atoms cannot be created or destroyed by chemical reactions, but can only change form. In a chemical reaction, the atoms stay the same but they are combined in new ways.

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Answer 4

The law of conservation of mass states that matter is neither created nor destroyed during a chemical reaction. This mean that if you have, for example, 20 g of a substance and react it with another substance, you would still have 20 g of the first substance at the end of the reaction, just in a different form.

Answer 5

The mass of the products must be equal to the mass of the reactants.

This also applies at the atomic level, i.e. the total number of each atom on both sides of the reaction equation must be equal; if you start with 6 carbons, 8 oxygens, and 5 hydrogens on one side, there must be 6 carbons, 8 oxygens, and 5 hydrogens on the other side, although they will be grouped into different molecules.

Answer 6

the law of conservation is relate to chemical reactions by energy

Answer 7

The law of conservation of matter/mass states that in a closed system matter is neither created nor destroyed. This means that the mass of the products equals the mass of the reactants.

Answer 8

The mass of reactants is equal to the mass of products.

Answer 9

Because the tota- [ERROR]

Answer 10

The total energy remain constant.