Module 4 Flashcards
Chemical formula
A notation indicating the elements in a compound and the ratio: of the atoms of each element
Reactants
Substances that undergo a chemical change
Products
New substances formed as a result of a chemical change
Coefficients
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
Chemical bond
A force of attraction between atoms or groups of atoms
Ion
an atom or a group of atoms that has a positive or negative charge
lonic bond
A chemical bond formed between oppositely charged ions
Covalent bond
A chemical bond in which two atoms share one or more pairs of valence electrons
Polar molecule
A molecule that has slight positive and negative charges due to an imbalance in the way electrons are shared
Cohesion
The force of attraction between molecules of the same substance so that they tend to stay together
Adhesion
The force of attraction between molecules of different substance:
