Unit 5 Test Flashcards
Define solvent-
Able to dissolved other substances
Define solute-
The minor component (smaller amount) in a solution,dissolved in the solvent
Define solubility-
Referring to ability for a given substance,to dissolve in a solvent
Name 3 things that can increase the rate of solubility
Increase temperature
Smaller particles (crushed tablet compared to whole tablet)
Stirring the solution
If you had 80 milliliters of vinegar and you add 20 milliliters of water.In this solution, the water is identified as part of the solution?
The water would be the solute because it is the smaller amount
Is the process of dissolving a solute in a solvent a chemical reaction or physical reaction.Explain why.
Physical change because the parts never chemically combine
Why is water described as the universal solvent?
The unequal sharing of electrons between oxygen and hydrogen
Explain what happens to solubility when you increase the temperature
As you increase the temperature the solubility increases
Why is water described as a polar substance?
A positive end and negative end positive charge
What most impacts whether a substance will dissolve in water?
Polarity (if it is polar it will dissolve,if non-polar will not dissolve)
What is a pH level?
Is a measure of how acidic or basic a substance is
Give characteristics of an acid.
Acid tastes sour
Acid reacts strongly to metals
pH 0-6
When you combine an acid and base what happens (Example: antacids and HCL)
Acid mixed with a bases neutralizes each other
What is a neutral solutions pH?
pH of 7
A liquid with a pH of 3.0 is how many times more acidic than one with a pH of 4.0.
Ten times
