Chemistry

A substance that reveals, through characteristic color changes, the degree of acidity or basicity of solutions. Could also be a light to notify of a components operation.

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Synthesis reactions are generally characterized by being exothermic. Decomposition reactions are usually endothermic.

double displacement reaction is when the positive ion of one compound replaces the other, to form two new compounds.

Single displacement reaction is when one element replaces another in a compound

Catalysts are substances that increase the rate of a chemical reaction -APEX

Single displacement (apex)

Catalysts

The _____________ of an acid and a base is determined by how completely they dissociate in water.

strength

False-apex

yes they are called reactants

two

AB + C + B is not an equation: an equation requires two sets of compounds on either side of an equality sign. Furthermore, it cannot be any of the following types of reactions because there is nothing following.

Ab+cd+=ad+cb

A combustion reaction occurs when a substance, usually containing carbon, reacts with _oxygen_ to produce energy in the form of heat and light.

false

true

Aspirin

acid + base → salt + water

Electrolysis is an example of a redox reaction because it has the ability to reverse a reaction of this type.

Redox reaction is chemical reactions. This happens when atoms oxidation state changes.

heat

formation of a solid and release of heat. apex

(Apex) interact

solutions