BONDING BASICS
What type of bond forms when electrons are transferred between atoms?
ionic bond
What is the symbolic way to represent a chemical reaction?
chemical equation
What is it called when substances change into new substances?
chemical reaction
What type of reaction releases heat?
exothermic
What type of ion has a positive charge?
cation
What type of bond forms when electrons are shared?
covalent bond
What symbol separates reactants from products?
arrow
What are the starting substances in a reaction called?
reactants
What type of reaction absorbs heat?
endothermic
What type of ion has a negative charge?
anion
What are the outermost electrons involved in bonding called?
valence electrons
What numbers placed in front of formulas show how many molecules are present?
coefficients
What are the substances formed in a reaction called?
products
In exothermic reactions, are products higher or lower in energy than reactants?
lower
What type of reaction combines two substances into one?
synthesis
What type of bond involves unequal sharing of electrons?
polar covalent bond
What do subscripts in a chemical formula represent?
number of atoms
What law states matter is not created or destroyed?
conservation of mass
In endothermic reactions, are products higher or lower in energy?
higher
What type of reaction breaks one compound into simpler substances?
decomposition
What type of compound forms between a metal and a nonmetal?
ionic compound
What must be equal on both sides of a balanced equation?
number of atoms
What is the only true evidence that a chemical reaction has occurred?
new substance formed
What must happen to bonds in order for a reaction to start?
bonds must break
What type of reaction swaps parts between two compounds?
double replacement BABY!!!