Chemistry
The chemical formula for water
What is H2O
What are the 3 common states in which water can exist?
What are solid, liquid, and gas?
Water makes up this percentage of your body.
What is 70%
These insoluble ions form scales on pipes and fixtures.
What are Magnesium and Calcium?
In the electrolysis experiment, there should have been twice as much of this gas.
What is hydrogen?
A charged atom
What is an ion?
Does frozen alcohol sink or float?
What is sink?
Water can dissolve nearly everything...well, a lot of things, which have these properties:
What are polar and ionic compounds?
If you do not have any water, you will die in as many days as there are atoms in a single water molecule, which is:
What is 3?
How many atoms are in 2 molecules of NaHCO3?
What is 12 atoms?
An molecule with an uneven distribution of charges
What is a polar molecule?
This name of this process of breaking with electricity comes from the Greek word lusis which means "to loosen or set free."
What is electrolysis?
Kool-aid is soluble in water making it what component of a solution?
What is the solute?
Water in our area is some of the "hardest" in the U.S. due to the presence of this compound: CaCO3, also called:
What is calcium carbonate or limestone...or chalk.
True or false? Hydrogen steals protons from the oxygen in a water molecule and is therefore more positively charged.
What is false.
These weak interactions are responsible for the surface tension of water.
What are hydrogen bonds?
Water molecules stick to each other, and we call this property__________.
What is cohesion?
Gases, including oxygen, dissolve in water allowing these animals to breathe.
What are fish?
When we are first born, our lungs are little flattened sacs that sometimes need help from these compounds to overcome water's cohesive forces and inflate.
What are surfactants?
True or false? A hydrogen bond is a bond between hydrogen and oxygen within a water molecule.
What is False?
This is the density of water.
What is 1 gram per milliliter?
Would there be more molecules in a liter of liquid water or a liter of ice?
What is a liter of liquid?
Water is found in this state at room temperature:
What is the liquid state?
Water boils at ________ degrees C and _______ degrees F.
What are 100 and 212?
The name of the type of bond that links hydrogen and oxygen within a water molecule.
What is a chemical bond?