The chemical formula for water is ________________.
H2O
100
Hydrogen has a ___________________ charge.
positive
100
Capillary Action is the combined force of attraction among water molecules and with molecules of surrounding materials. Which of the following is an example:
A) a sponge
B) water drops
C) skipping rocks across water
A) a sponge
100
Solve: n=4 25 - n x 5 =
5
200
Oxygen has a ___________________ charge.
negative
200
Molecules that move slowly but are free to move past one another are in a _________________.
A) Liquid
B) Solid
C) Gas
A) Liquid
200
The process of turning from a liquid to a gas is known as _______________.
evaporation
200
Solve: n - 8 = 43
n = 51
300
A mixture that forms when one substance dissolves another is a ____________________.
A) Solvent
B) Solution
C) Solute
D) Evaporation
B) Solution
300
A ____________________________ is a molecule that has an electrical charge.
polar molecule
300
Molecules that moves the slowest and are close together are in a _______________.
solid
300
Solve and simplify: 2/3 x 3/8
6/24 = 1/6
400
Molecules move the fastest, move freely and are spread apart in ___________________.
Gas
400
True or False: Water is made of 2 OXYGEN atoms and 1 HYDROGEN atom.
False: 2 hydrogen atoms and 1 oxygen atom
400
_________________________ is the tightness across the surface of water that is caused by polar molecules.
Surface Tension
400
The horizontal line on a coordinate plane is called the ____ axis.
x-axis
500
The substance that does the dissolving is known as the __________________.
A) Solvent
B) Solution
C) Solute
D) Evaporation
A) Solvent
500
The substance that gets dissolved is the ___________________.
A) Solvent
B) Solution
C) Solute
D) Evaporation
C) Solute
500
True or False: Capillary Action is the combined force of attraction among water molecules and with molecules of surrounding materials.
True
500
The formula for finding volume is ______ x _____ x _____