Elements and Atoms
Compounds
Energy
Water
Acids and Bases
100
Anything that occupies space and has mass.
What is matter?
100
The forces that hold atoms together.
What is chemical bonds?
100
The ability to do work.
What is energy?
100
A molecule with opposite charges on opposite ends. For example, water has two positive hydrogen atoms and one negative oxygen atom.
What is polar?
100
This scale is used to measure acidity and alkalinity, and ranges from 0 to 14.
What is the pH scale?
200
Substances that can not be broken down chemically any further.
What is an element?
200
When atoms share electrons.
What is a covalent bond?
200
Gas, solid, and liquid.
What is the three states of matter?
200
Because of its polarity, water can not dissolve these types of substances.
What are oils/fats?
200
This ion is also know as H3O+, and acids occur when there are more of this ion than negatively charged ions.
What is hydronium?
300
Made of neutrons and protons.
What is the nucleus?
300
When one atom loses an electron to another atom and becomes charged.
What is an ionic bond?
300
These go into an chemical reaction.
What is reactants?
300
What is being dissolved in a solution.
What is a solute?
300
This solution contains more hydroxide ions than hydronium.
What is a base?
400
Atoms of the same element with a different number of neutrons.
What is an isotope?
400
How many protons are in an atom.
What is the atomic number?
400
This lowers the activation energy in chemical reactions, and is called an enzyme in living things.
What is a catalyst?
400
This type of solution can't take anymore solute.
What is a saturated solution?
400
This substance is neutral- a seven on the pH scale.
What is water?
500
In the second energy level, how many electrons one orbital can hold.
What is two?
500
If a Helium-4 atom has 3 protons and a mass number of 4, there are this many electrons and this many neutrons.
What is 3 and 1?
500
In this type of reaction, a reactant loses electrons and becomes positive :D.
What is an oxidation reaction?
500
In this type of solution, water is the solvent.
What is an aqueous solution?
500
This substance is extraordinarily acidic- a two on the pH scale-and is found in our digestive systems.
What is stomach acid?
M
e
n
u