Happy
A notation indicating the elements in a compound and the ratios of the atoms of each element
Chemical formula
He is name after the First President
Washington
She is named after the first presidents wife
Martha
Linus waits for him in a pumpkin patch
He only gets rocks while Trick or Treating
Charlie Brown
An atom or a group of atoms that has a positive or negative charge
Ion
A force of attraction between atoms or groups of atoms
Chemical bond
Numbers that appear before a formula in a chemical equation to show how many atoms or molecules of each reactant or product are involved in the reaction
Coefficients
New substances formed as a result of a chemical change
Products
Substances that undergo a chemical change
Reactants
The force of attraction between molecules of different substances so that they tend to stick together
Adhesion
The force of attraction between molecules of the same substance so that they tend to stay together
Cohesion
A molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared
Polar molecule
A chemical bond in which two atoms share one or more pairs of valence electrons
Covalent bond
A chemical bond formed between oppositely charged ions
Ionic bond
A chemical reaction in which a substance reacts rapidly with oxygen, often producing heat and light
Combustion reaction
The energy stored in chemical bonds
Chemical energy
An amount of a substance that contains approximately 6.02 x 10 to the power of 23 particles (known as Avogadro's number) of the substance
Mole
A chemical reaction that releases energy to its surroundings
Exothermic reaction
A chemical reaction that absorbs energy from its surroundings
Endothermic reaction
Compounds made of only two elements
Binary compounds
A covalently bonded group of atoms that has a positive or negative charge and acts as a unit
Polyatomic ions
A chemical reaction in which two or more substances react to form a single compound
Synthesis reaction
A chemical reaction in which a compound breaks down into two or more simpler substances
Decomposition reaction
A chemical reaction in which two compounds exchange positive ions and form new compounds
Double replacement reaction