Unit 1
A controlled experiment.
What is a study with set conditions that involves testing only one variable at a time?
Energy that consists of total kinetic energy.
What is thermal energy?
A landmark in the field of chemistry.
What is the periodic table?
A type of nuclear reaction in which the nucleus of a heavy atom splits into two or more smaller nuclei that have masses of relatively similar size.
What is nuclear fission?
A combination of two or more substances that can be separated through physical means.
What is a mixture?
Joined atoms of different elements.
What are compounds?
The fourth state of matter.
What is plasma?
The angle between two bonded pairs of atoms that share at least one atom.
What is a bond angle?
The 73rd element on the periodic table.
What is tantalum?
A technique that can be used to separate solids from liquids and different solids from each other.
What is filtration?
Items of interest that are studied or watched.
What is a system?
A substance of matter that has both variable volume and shape.
What is a gas?
Lists the number and types of elements in a compound and describes how they are arranged.
What is the structural formula?
Both involve a change in the nucleus of an atom and both release particles.
What is fission and nuclear decay?
Homogeneous mixtures made of two or more metallic elements.
What is alloys?