It is composed of one oxygen atom and two hydrogen atoms.
No
What is water composed of?
Can humans drink salt water from the oceans?
100
Gas is a phase that compounds and elements can exist as which means we need gases to live.
For a given mass of gas
at constant temperature,
the volume of a gas
varies inversely with
pressure
What is gas?
What is Boyle’s Law?
100
calcium carbonate
BaSO4
CaCO3
What is barium sulfate?
100
A measure of the hydrogen ion concentration
What is Ph?
100
Osmosis is the process where solvent molecules move through a semipermeable membrane from a dilute solution into a more concentrated solution.
What is osmosis?
200
Humans need to drink water to survive.
You throw up.
Why do we need water?
What happens when you drink ocean water?
200
Oxygen
Humans inhale oxygen, a gas that then travels to our lungs.
What type of gas do humans need mostly?
Why do we need this gas?
200
They are composed of cations and anions.
Zn(NO3)2
What are salts composed of?
What is zinc nitrate?
200
power of hydrogen
What does Ph stand for?
200
The movement of particles in solution from areas of high concentration to areas of low
concentration.
diffusion definition
300
60
Our body is approximately __ percent water
300
Gas
octane gasoline
What do cars run on?
What type of gas does cars run on?
300
FeO
AlCl3
What is iron (II) oxide?
What is aluminum chloride?
300
Yes
Is a Negative pH Possible?
300
Permeable
A membrane that allows all molecules in the solution to pass through is called what type
of membrane?
400
70
Our brain is__ percent water
400
flatulence
The volume of a fixed
mass of gas is directly
proportional to its
Kelvin temperature if
the pressure is kept
constant.
When you fart, what type of gas it?
What is Charles’ Law?
400
potassium sulfite
What is K2SO3?
400
True
Strong acids do not fully dissociate at high concentrations.(True or False)
400
Selectively permeable (or semi-permeable)
A membrane that allows some molecules in the solution, but not others, to pass through is
called what type of membrane?
500
90
Drink eight 8-ounce glasses of water a day
Our lungs are nearly __ percent water.
How many ounces of water should you drink per day?
500
Helium
The pressure of a gas is
directly proportional to
the Kelvin temperature if
the volume is kept
constant.
When you inhale this type of gas, it makes your voice squeaky.
What is Guy-Lassac's Law?
500
AgC
PbO
What is silver chloride?
What is lead (II) oxide?
500
negative pf the logarithm of the hydrogen ion activity
This effect of the enhanced hydrogen ion activity is very strong, and makes the pH much lower than you'd expect from the acid molarity.
500
Impermeable
A membrane that does not allow any molecules in the solution to pass through is called
what type of membrane?