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In a chemical reaction the total mass of the substances before the reaction is?
Wiki User
∙ 6y ago
The mass of all substances before a chemical reaction is equal to the mass of the substance after the reaction. This is under the law of conservation of mass.
Wiki User
∙ 9y ago
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How do physical and chemical changes affect mass?
law of consevation of mass states that the total mass before a chemical reaction is the same as the total mass after the chemical reaction
He total amount of energy before and after a chemical reaction is the same. Therefore energy is .?
Conserved.
Which of the following is true of the new substances formed in a chemical reaction?
Their total mass (or total weight measured on earth) is equivalent to the total mass (or weight measured on earth) of the products used to create the reaction. Also, the Chemical Elements forming both sides are the same in both the products and the reactants, but they may be arranged differently.
What happens to the total mass of substances during a chemical reaction?
During a chemical change,chemical energy may be changed to other forms of energy.other forms of energy may also be changed to a chemical energy.
The total amount of energy before and after a chemical reaction is the same .Thus energy is what?
Therefore energy is conserved.
Which scientist showed that the total mass of the substances in a chemical reaction is always the same before and after the chemical reaction?
Antoine Lavoisier
Which observation does not indicate that a chemical reaction has occured?
Change in total mass of substances.
How do physical and chemical changes affect mass?
law of consevation of mass states that the total mass before a chemical reaction is the same as the total mass after the chemical reaction
How does law of the conservation of mass apply to chemical reactions?
The Law of Conservation of Mass applies to chemical changes. When considering a chemical change this would mean that the total mass of all of the reactants in the chemical reaction is equal to the total mass of products in the chemical reaction.
What happens to the total number of atoms of each element before and a after a chemical reaction?
It does not change
He total amount of energy before and after a chemical reaction is the same. Therefore energy is .?
Conserved.
Which of the following is true of the new substances formed in a chemical reaction?
Their total mass (or total weight measured on earth) is equivalent to the total mass (or weight measured on earth) of the products used to create the reaction. Also, the Chemical Elements forming both sides are the same in both the products and the reactants, but they may be arranged differently.
What happens to the total mass of substances during a chemical reaction?
During a chemical change,chemical energy may be changed to other forms of energy.other forms of energy may also be changed to a chemical energy.
The total amount of energy before and after a chemical reaction is the same .Thus energy is what?
Therefore energy is conserved.
In a balanced chemical reaction the total mass of the products always equals the total what?
In a balanced chemical reaction the total mass of the products always equals the total mass of reactants; this is the law of mass conservation.
What best describes the total mass of substances before and after a combustion reaction?
The total mass of reactants (the burned material) is equal to the mass of products (ash, water, carbon dioxide, etc.).
Do the total volumes of original and new substances stay the same after a chemical change?
It depends on the reaction. Often the volumes do change. For example, a gas could be formed when a liquid and a solid react.
