Chemistry Flashcards
What are reactants?
a substance that takes part in and undergoes change during a reaction.
What are products?
Products are the species formed from chemical reactions.
What is the law of conservation of mass?
that mass is neither created nor destroyed in chemical reactions.
What is a balanced equation?
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.
How can chemicals be represented?
Coefficients and subscripts in chemical equations.
How can we describe chemical reactions?
- describing observed changes
- using a word equation
- using a chemical equation
What is an Exothermic reaction?
chemical reaction that releases energy through light or heat.
What is a endothermic reaction?
any process which requires or absorbs energy from its surroundings, usually in the form of heat.
What type of reaction is it when a solid goes to a liquid?
Sublimation
What type of reaction is it when it’s goes from a gas to a solid?
Deposition
What type of reaction is it when it goes from a gas to a liquid?
Condensation
What type of reaction is it when a liquid goes to a solid?
Freezing
