Chemical Flashcards
What is matter?
Anything that has mass and takes up space
What is physical change?
Any change that alters a substance without changing it into another substance
What is an exothermic reaction?
A reaction that releases energy in the form of heat
What is an endothermic reaction
A reaction in which energy is absorbed (cold)
A chemical change is also referred to as…
Chemical reaction
What is precipitate?
A solid formed from a solution during a chemical reaction
What is chemistry?
The study of the properties of matter and how matter changes
What is a chemical equation?
Uses symbols and formulas to show chemical reactions
What is decomposition reaction?
Reaction in which compounds are broken down into simpler products
What is a coefficient?
Number telling how many molecules of a substance are involved in a chemical reaction
What is a product?
Substance present after a reaction
What is a reactant?
Substance present before a reaction
What is the conservation of mass?
Both
Principle states that matter is not created nor destroyed during a chemical reaction it’s also is mass of reactants=mass of products
What is a synthesis reaction?
Reaction in which substances combine to form a more complex compound
What is a replacement reaction?
Reaction in which one element replaces another in a compound
