Table of Contents
- 1 What can happen during chemical reactions?
- 2 What are 5 things that happen during a chemical reaction?
- 3 What can cause a chemical reaction to occur?
- 4 What best describes what occurs during a chemical reaction?
- 5 Why do chemical reactions not occur?
- 6 What is released during the chemical reaction and what is it used for?
What can happen during chemical reactions?
In a chemical reaction, the atoms and molecules produced by the reaction are called products. No new atoms are created, and no atoms are destroyed. In a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.
What are 5 things that happen during a chemical reaction?
The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.
What 3 things happen in a chemical reaction?
Three things must happen for a reaction to occur.
- Molecules must collide.
- Molecules must collide with enough energy to begin to break the old bonds so new bonds can form. ( Remember activation energy)
- Molecules must collide with the correct orientation.
What can cause a chemical reaction to occur?
Reactions occur when two or more molecules interact and the molecules change. Bonds between atoms are broken and created to form new molecules. That’s it.
What best describes what occurs during a chemical reaction?
A chemical reaction is a process in which some substances, called reactants, change into different substances, called products. During the reaction, chemical bonds break in the reactants and new chemical bonds form in the products.
What must happen for a reaction to occur?
For a chemical reaction to occur, the reactant particles must collide with each other. However, a collision with too little energy will not produce a reaction. The colliding particles must have enough energy for the collision to be successful or effective in producing a reaction.
Why do chemical reactions not occur?
When molecules collide, the kinetic energy of the molecules can be used to stretch, bend, and ultimately break bonds, leading to chemical reactions. If molecules move too slowly with little kinetic energy, or collide with improper orientation, they do not react and simply bounce off each other.
What is released during the chemical reaction and what is it used for?
All chemical reactions involve energy. Energy is used to break bonds in reactants, and energy is released when new bonds form in products. In exothermic reactions, more energy is released when bonds form in products than is used to break bonds in reactants.