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When substances go through a chemical change is mass always gained or lost or conserved?
The mass remain unchanged; this is the law of mass conservation.
Why do reactions have to he balanced?
atoms are not lost or gained in a chemical reaction
Is matter being lost when burning a log?
In a chemical reaction the mass of reactants is equal to the mass of products; burning is a chemical reaction.
What are never gained or lost in a chemical reaction?
matter is never destroyed by reactions created by chemical More specifically, both mass and energy cannot be created or destroyed in any chemical reaction, but mass and energy are equivalent under Einstein's theory of special relativity, so energy can change to mass and vice-versa in the ratio E = mc2
Elements can be lost or gain in chemical reaction?
Elements cannot be lost/gained: this is the law of mass conservation.
How does the of the conservative of mass apply to chemical reactions?
The law of conservation of mass states that in a close container, when a chemical reaction occurs, no mass will be lost.
How does the law of the conservation of mass apply to to chemical reactions?
Atoms cannot be added or lost in a chemical reaction.
When substances go through a chemical change is mass always gained or lost or conserved?
The mass remain unchanged; this is the law of mass conservation.
What is matter in a chemical process its not lost nor gained?
Mass is never lost nor gained - neither in chemical reactions, nor in other cases.
Where did the 'lost mass' go during a chemical reaction?
False
When a log burns in a fire is its mass lost?
No, what is left of the log is reduced in mass but mass is conserved as the remainder is ashes and tiny particles that rise as smoke,
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.
Why do reactions have to he balanced?
atoms are not lost or gained in a chemical reaction
In a nuclear reaction mass must be lost to produce energy. true or false?
False. Both mass and energy are conserved.
What does a valence shell have to do with chemical reactions?
The valance shell is important in chemical reactions, as it is the valance electrons which are gained/lost during reactions. An atoms valance electron configuration is what largely determines its chemical reactivity.
This is not lost in a chemical reaction?
Mass can not be changed
When a firecracker explodes mass is a lost?
No. The explosion of a firecracker is a chemicalexplosion. Matter is converted from one form to another; molecules, that is, the atoms in the molecules, rearrange themselves releasing energy. That's the blast and the light. But the total mass of the substances involved is carried over into the combustion byproducts. No mass is lost. Chemistry does not change the involved mass in a reaction. Only nuclear reactions cause change in mass. In chemical reactions, energy can be released or absorbed according to the reaction and the constituent substances involved.
