CHEMICAL REACTIONS

Main topic

Main topic

Main topic

ATOMS INTERACTS IN CHEMICAL

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IN A CHEMICAL REACTION, BONDS BETWEEN ATOMS ARE BROKEN AND NEW BONDS FORM BETWEEN DIFFERENT ATOMS,BREAING AND FORMINGOF BONDS TAKES PLACE WHEN PARTICLES OF THE ORIGINAL MATERIALS COLLIDE WITH ONE ANOTHERS

CHEMICAL REACTIONS PRODUCES NEW SUBSTANCE BY CHANGING THE WAY IN WHICH ATOMS ARE ARRANGED

physical changes is in a state of a subtance

substance can undergo different kinds of phsyical changes

ATOMS INTERACTS IN CHEMICAL

Chemical changes bonds are broken and new bonds are formed between different atoms

Reactants and Products

Reactants are subtance present at the beginning ofa chemical reaction

Products are substances formed by chemical reaction

During a chemical reactions,bonds between atoms in the reactants are broken and new bonds are formed in the products

Evidence of chemical reactions

Color Changes

substances often change color during a chemical reations for example when gray iron rust , the products that forms is brown.

Formation of a Percipitate

is a solid products

Formation of Gas

chemical reactions may produce a gas, like that often formed when antacid when antacid pill are mixed with excess stomach acid

temperature change

most involve a tempearture change

Chemical reactions can be classified as synthesis,decomposition,and combustion

synthesis is a new compound is formed by the combination of simpler reactants

Decomposition is a reactant breaks down into simpler products

Ccombustion is buring of oxygen