unit 5 Flashcards
Define Solvent
able to dissolve other substances
Define Solute
the minor component in a solution, dissolved in the 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 have 80 milliliters of vinegar and you add 20milliliters of water. In this solution, the water is indentified as what 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 a physical reaction?
Physical change bc the parts never chemically combine
Why is water described as the universal solvent?
the unequal sharing pf electrons between oxygen and hydrogen
explain what happens to solubility when you increase the temperature
as you increase the temperature the solubility changes
why is water described as a polar substance
a positive end and a negative end
- positive charge
what most impacts whether a substance will dissolve in water
polarity
what is a pH level
is a measure of how acidic or basic a substance is
give characteristics of an acid
taste sour. react strongly woth metal. pH level 0-6
when you combine an acid and base what happens
acids mixed w bases neutralize eachother
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
10 times
what is acidic rain
rain or acid in any form of precipitation that is unusually acidic meaning that is possess elevated levels of hydrogen ions
