Chelsea- chapter 6 Flashcards
What is a product?
A substance that is made in a chemical reaction.
What is a reactant?
Molecules that take part in a chemical change
What is chemical energy?
The energy that is released by to substances during a chemical reaction.
What is exothermic reaction?
When heat is released during a chemical reaction.
What is endothermic reaction?
A chemical reaction that needs heat to change
What is synthesis reaction?
When two or more substances come together to make a new compound.
What is decomposition reactions?
When a compound breaks down and makes simpler substances.
What are electrolysis?
When a electric current is used to make a chemical reaction.
What is combustion reaction?
When oxygen is used to make a reaction of a compound and heat is released.
What is single- displacement reaction?
One element takes the place of another element in a compound.
What is double-displacement reaction?
A reaction that occurs when a gas, solid, or a molecular compound forms from the exchange of atoms or ions.
What is oxidation-reduction reaction?
A chemical reaction when electrons are transferred.
What is radical?
A organic group that has more one or more electrons available for bonding.
What is reduced?
When oxygen is lost or hydrogen is gained.they accept electrons.
What is oxidized?
Substances that give up their electrons.
What is chemical equation?
Equation used to show the relationship between reactants and the products.
What is mole ratio?
Relative number of moles in a substance.
What is coefficient?
Numbers in front of the chemical formulas.
Law of conservation of mass?
The total mass of reactants is always the same as the total mass of the product.
Law of definite proportions?
A compound always contains the same elements in the same proportions.
What is a catalyst?
Substance that changes the chemical reaction without being changed.
What are enzymes?
Protein that speeds up metabolic reactions without being changed or destroyed.
What is substrate?
Part of a substance that lies beneath and supports another substance.
What is chemical equilibrium?
The rate of forward relations is equal to the rare of the reverse action. The concentrations and reactants remain uncharged.
