How is the weight gain formula consistent with the law of conservation of mass?

Asked by: Sarah Dent

How does balance relate to the law of conservation of mass?

A chemical equation is balanced when it reflects the conservation of mass. The same number of each kind of atom must be on the left side of the arrow as are on the right side when an equation is balanced. Oxygen, as a product, must be multiplied by 2.

What is the law of conservation of mass and how is it related to the results of a chemical reaction?

The Law of Conservation of Mass dates from Antoine Lavoisier’s 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

What is the law of conservation of weight?

In physics and chemistry, the law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system’s mass cannot change, so quantity can neither be added nor be removed.

Does the equation follow the law of conservation of mass?

As you can see now, the mass of the products is equal to the total mass of the reactants together, and the chemical equation obeys the law of conservation of mass. Note that this applies to every balanced chemical equation.

Which of the following equation is based on conservation of mass?

Explanation: The equation based on the principle of conservation of mass is called the continuity equation.

How is the law of conservation of mass related to balancing equations quizlet?

Why must chemical equations be balanced? They must obey the Law of Conservation of Mass that states that matter cannot be created or destroyed, it is conserved. Atoms are never lost or gained in chemical reactions, they are rearranged. The mass of the reactants must equal the mass of the products.

Why does a chemical equation need to be balanced to support the law of conservation of matter?

Answer: Chemical reaction is just a rearrangement of atoms. It can neither create nor destroyed during the course of a chemical reaction. Chemical equations must be balanced to satisfy the law of conservation of matter, that states that matter cannot be produced or destroyed in a closed system.

How is the mass of the products related to the mass of the reactants?

Chemical reactions can be described by chemical equations. The law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products.

Why is it hard to prove the law of conservation of mass when a gas is produced?

Answer and Explanation: It is difficult to prove the law of conservation of mass when a gas is produced because the gas molecules move quickly into the outside space and away… See full answer below.

What does the mass of the reactants and products tell us about the law of conservation of mass Why?

This law states that, despite chemical reactions or physical transformations, mass is conserved — that is, it cannot be created or destroyed — within an isolated system. In other words, in a chemical reaction, the mass of the products will always be equal to the mass of the reactants.

Why can’t you simply add the masses of two reactants to determine the total mass of the product?

The reason you can’t just add the masses of the two reactants is that would only work if the reactants where in the mole ratio so that there was no limiting reagent. Also if a gas is one of the reactants or products, you can’t just simply find the mass of it by putting it on a scale.

What is the law of conservation of mass describe with an activity?

The law of conservation of mass states that matter cannot be created nor destroyed, only it’s form changed. Take the example of burning a piece of paper. It seems that the mass shrinks as the paper burns.

How is mass conserved when a substance has a physical or chemical change?

The Law of Conservation of Mass

Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.

Why does the mass stay the same in a chemical reaction?

No atoms are added or taken away from the system, so the mass stays the same. Even in a chemical reaction when atoms interact and create new products, mass is conserved. This is because the new substances created are composed of atoms that were present in the reactants.

Is the law of conservation of mass always true?

Mass is therefore never conserved because a little of it turns into energy (or a little energy turns into mass) in every reaction. But mass+energy is always conserved. Energy cannot be created out of nothing.

Why is the mass of the product not the same as the total mass of the reactants?

According to the Law of Conservation of Mass, mass cannot be created or destroyed. Therefore in any chemical reaction the mass of the products must equal the mass of the reactants.

Why the total mass of the products would be less than the total weight of the reactants after a chemical reaction?

Q. Which best explains why the total mass of the product(s) would be less than the total weight of the reactant(s) after a chemical reaction? A physical change occurred. Atoms involved in the reaction lost mass.

How did the final products mass of the system compare with the initial reactants mass of the system?

The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction. For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.

What happens to the total mass of the chemicals involved in the reaction as the reaction proceeds?

The total mass stays the same during a chemical reaction. This is the law of conservation of mass.

How does law of conservation apply to chemical reactions?

All chemical reactions are chemical changes. The Law of Conservation of Matter states that matter cannot be created or destroyed. In a physical change, substances can change form, but the total mass remains the same. In a chemical change, the total mass of the reactants always equals the total mass of the products.

Which of the following is true about the mass of the reactants in a chemical reaction?

Which of the following is true about the mass of the reactants in a chemical reaction? The total mass of the reactants in a chemical reaction will never be equal to the total mass of the products. The total mass of the reactants in a chemical reaction is conserved and will be equal to the total mass of the products.