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What makes a chemical reaction different from a physical change?
In a chemical reaction, atoms are rearranged, such that some atoms get out of some molecules and join other molecules.
If five atoms of hydrogen are reactants in a chemical reaction then how many atoms of hydrogen will be found in the products of that reaction?
If five atoms of hydrogen are reactants in a chemical reaction, typically all five atoms will be found in the products unless some sort of splitting or rearrangement of atoms occurs during the reaction. It follows the principle of conservation of mass, meaning atoms cannot be created or destroyed in a chemical reaction.
Atoms can disappear completely in some chemical reactions-true or false?
false. atoms can either be fused or defused in all chemical reaction.
. How do substances change after a chemical reaction?
After a chemical reaction, some of the bonds have been broken, and some new bonds have been formed. So, that's how a substance is changed after the reaction.
How do chemical reaction change substances?
After a chemical reaction, some of the bonds have been broken, and some new bonds have been formed. So, that's how a substance is changed after the reaction.
What is a chemical reaction is it a product or a polymer?
A chemical reaction normally does have a product, and that product in some cases would be a polymer, but it is not true that a chemical reaction is a product or a polymer. It is a specific chemical change.
What is formed or broken in a chemical reaction?
Some bonds between atoms are broken and new bonds are formed.
What is never gained or lost in a chemical reaction?
Matter is never lost or gained in a chemical reaction. A chemical reaction cannot destroy or create atoms, it merely rearranges how they are connected and arranged in new molecules. While the atoms rearrange, energy is released (such as through light, fire or heat), or absorbed, (such as when plants use sunlight to make sugar out of carbon and water). Some atoms may evaporate, making the resulting product seem lighter or smaller, such as when coal or wood burns, but the atoms themselves are not destroyed.
Does the total number of atoms stay the same during a chemical reaction?
Indeed by the Law of Conservation of Mass, mass cannot be lost or gained through a reaction. Similarly, atoms cannot be lost, gained or somehow transformed themselves-only rearranged into different compounds. This means there are still going to be the same amount of Hydrogen atoms after a reaction as there were before.
Are atoms created destroyed during or rearranged during a chemical reaction?
In chemical reactions, the number of atoms stays the same, yet they may recombine into different types of molecules. That is why some chemical reactions use two compounds to create a different coumpound.
What is it called when one or more substances change into one or more new substances?
This could refer to a chemical transformation (chemical change), a chemical reaction, or spontaneous change. Some changes require another substance or substances to be mixed together. Some reactions will occur by themselves without any outside manipulation or stimulation.
What is a description of a reaction using chemical symbols?
It is called a chemical equation. The reactantsengage in a chemical change and result in different chemical products being created. Some reactions have catalystswhich undergo no net change after the reaction.
