January
Why do scientists use a unit called a mole?
Atoms and other particles are small
What is the Law of Conservation of Mass? (LCM)
Matter can neither be created or destroyed
What happens when oil is placed in water
The oil stays on top of the water
What is Acidity?
Measure of how acidic a solution is
What does Chemical equilibrium exist between?
The atmosphere and the ocean
Why do your ears "pop" while on a plane or driving through mountains?
The air high above the surface of earth is less dense than air near the surface.
What is a Coefficient? (Coef)
A Large number written in front of a substance (atom, molecule, compound) in CE.
What happens to oil and vinegar dressing when it is shaken?
They mix then seperate
What is Basicity
Measure of how basic (Alkaline) is
As an aq solution gradually becomes more acidic, which color will a Universal Indicator appear?
Red
Why do scientists use a unit called a mole?
B/c atoms and other particles are small
How is a Hydrogen Bond usually represented.
By a dotted molecule
Why is it easier to dissolve several small salt pieces rather than one large piece in water?
With several it is easier to mix it all up and get solution you want faster that with a piece of salt.
What is pH scale?
Logarithmic scale based on 10 measuring a solutions Acidity or Basicity
When is a substance said to dissociate in solution?
When a substance that already exists
What is boyles law?
The volume of a given mass of gas varies inversely with the pressure when the temp is kept constant
What surface does tension allow?
It allows some smaller insects to walk easily on its surface.
What is a solute?
A substance that dissolves in a solvent
Lactic Acid is found in which 3 products?
Milk, yogurt, sour cream
Where is citric acid found?
Fruit
What is a mole?
A unit of measurement
Why are LDF temporary?
Electrons are in constant motion
What is molarity?
Measurement expressing the number of moles of solute in one liter of solution
Where is Sulfuric Acid found?
Car batteries
Why can the concentration of liquid of liquid be removed form the equilibrium.
B/c the concentration can't change.