A characteristic of matter that you can observe or measure without changing the identity of the matter.
What is a physical property?
100
A change in size, shape, form, or state of matter in which the matter's identity stays the same.
What is physical change?
100
A change in matter in which the substances that make up the matter form other substances with new physical and chemical properties.
What is chemical change?
100
A substance that consists of only 1 type of atom.
What is an element?
200
Matter with composition that is always the same.
What is a substance?
200
These are the three main states of matter.
What are solid, liquid and gas?
200
The point at which a substance changes from a liquid to a gas.
What is boiling point?
200
These are always on the left side of a chemical equation.
What are reactants?
200
These are the components of an atom.
What are neutrons, protons, and electrons?
300
A type of mixture in which the individual substances are not evenly mixed.
What is a heterogeneous mixture?
300
If something is in this state of matter, its molecules are in a uniform structure, are very close together, and does not take the shape of its container.
What is a solid?
300
The point at which a solid changes to a liquid.
What is melting point?
300
The things you can learn from a chemical equation. **BONUS** Earn an extra 300 points for getting the correct answer. There are 4 answers.
What are the types of elements/compounds, the number of atoms of each element, the products and the reactants?
300
Another name for "solution"; two or more different substances are evenly mixed.
What is a homogeneous mixture?
400
The substance being dissolved; the substance in which the other is being dissolved.
What are solute and solvent?
400
The mass per unit volume of a substance.
What is density?
400
The name for the change of gas to liquid.
What is condensation?
400
When increased, these increase the rate of reaction.
What are temperature, concentration, and surface area?
400
These are the size-independent properties of matter.
What are conductivity, boiling/melting point, state of matter, density, solubility, and magnetism?
500
The two classifications of matter -- one includes matter whose composition is always the same, and the other includes matter that can vary in composition. List these in ORDER.
What are substances and mixtures?
500
These are the size dependent properties of matter.
What are mass and volume?
500
The particles of matter are the same before and after a physical change.
What is conservation of mass?
500
2KBr + Cl(2) → 2KCl + Br2
The left side of the equation is an example of this.
What are products (of a chemical reaction)?
500
When a gas directly becomes a solid due to the removal of thermal energy.