Closely packed arrangement of particles that have a definite shape and vloume.
What is a solid?
100
The smallest particle of an element.
What is an atom?
100
This determines the properties of an element, including the ways in which the atom can bond with other atoms.
What are Valence Electrons?
100
Changes that occur when bonds break and new bonds form.
What is Chemical Changes?
200
The measurement of the force of gravity on an object.
What is mass?
200
A liquid's resistance to flowing.
What is viscosty?
200
A process that takes place in stars which combines smaller nuclei into larger nuclei creating heavier elements.
What is nuclear fusion?
200
Ions form an orderly 3-dimensional arrangement called a _.
What is a Crystal?
200
The study of matter and how it changes.
What is Chemistry?
300
The measurement of the amount of matter in an object.
What is mass?
300
When particles of a solid turn straight into a gas without passing through the liquid state.
What is sublimation?
300
The reason the reactivity of elements decreases from Left to right across the periodic table.
What is an increase of valence electrons?
300
A covalent bond in which electrons are shared unequally.
What is a polar bond?
300
In terms of energy, this kind of reaction occurs when food is cooked.
What is endothermic?
400
The formula for calculating density.
What is mass divided by volume?
400
When the pressure of a gas at a constant temperature is increased the volume of the gas decreases. When the pressure is decreased, the volume increases.
What is Boyle's Law?
400
When an element occurs in nature consists of 2 atoms, it is called _.
What is Diatomic?
400
The _ in a metallic bond explains the ease with which they can change shape, their ability to conduct electricity, their luster, and their ability to conduct heat.
What is the sea of electrons?
400
In a _, matter is not allowed to enter or leave.
What is a closed system?
500
Matter cannot be created or destroyed in any chemical or physical change.
What the Law of Conservation of Mass?
500
When the temperature of a gas is increased at a constant pressure, its volume increases. When the temperature is decreased, the volume decreases.
What is Charles' Law?
500
Natural radioactive decay can produce these 3 things.
What are alpha particles, beta particles, and gamma rays?
500
Carbon dioxide is a non-polar molecule with polar bonds because the oxygen atoms are pulling _.
What is equally?
500
1. Write the Equation
2. Count the atoms
3. Use Coefficients to Balance Atoms
4. Look Back and Check
What are the steps for balancing a chemical equation?