Describe 3 properties of a solution that has a pH of 2.
What are sour taste, corrosive, form hydronium ions (H+), an acid, conducts electrical currents, and changes color with indicators?
100
Explain the difference between a saturated solution and an unsaturated solution.
What is saturated solution has as much solute as it can hold at a given temperature, while an unsaturated solution can dissolve more solute at a given temperature?
100
Describe the difference between a concentrated solution and a diluted solution.
What is a concentrated solution has a large amount of solute in the solution, while a dilute solution has little solute in it?
100
Human blood contains ____________ which allow small amounts of acids or bases to be absorbed without harmful effects.
What are buffers?
100
Explain what an indicator, such as litmus paper or red cabbage juice, helps determine.
What is "determines if a solution is an acid or a base"?
200
When mixing lemonade powder with water to make a solution, the water is the __________________ and the lemonade mix is the ________________.
What are solvent and solute?
200
Name 3 ways to speed up the rate of dissolving a solute into a solvent.
What are stirring, increase temperature, and increase surface area?
200
Name 5 properties of bases.
What are slippery, bitter taste, strong bases are corrosive, crystalline solid in undissolved state, form hydroxide ions (OH-), and color changes when using an indicator?
200
The chemical reaction between an acid and a base which results in the formation of salt and water.
What is neutralization?
200
Describe the ph scale include names and numbers.
What are 0-14, left side is acids, right side is bases, 7 is neutral, stronger acids & bases are at the far ends, and colors change from a purple (when using red cabbage juice)?
300
Determine the type of solution you have if at 45 degrees Celsius you can add more solute and it dissolves.
What is unsaturated?
300
A _______________________ solution is unstable compared to a saturated solution.
What is supersaturated?
300
Describe why acid rain/precipitation is a form of pollution to our environment.
What is the acidity in the rain causes harm to living things - especially plants and can cause structural damage - to things like buildings, statues, etc.?
300
The neutral number on the pH scale
What is 7?
300
Name 1 substance that will not dissolve in water and 2 substances that will dissolve in water.
What are: Won't - oil, methane, etc.
Will - baking soda, salt, alcohol, etc.
See your lab sheet for other examples.
400
Describe how you can make a dilute solution of a strong acid (ex. hydrochloric acid - HCl).
What is add more acid?
400
Name the solute and solvent in each of the following solution:
saltwater, Kool-Aid, and chocolate milk
What are : salt - solute and water - solvent,
Kool-Aid mix - solute and water - solvent,
chocolate milk (chocolate syrup) - solute and milk - solvent?
400
Tell the charges for both an acidic and basic ion. (hint: ions that each produces)
What are H+ (hydronium) acid and OH- (hydroxide) base?
400
Water's nickname and its density
What are "The Universal Solvent" and 1.0g/mL (1.0g/cm3)?
400
The _____________the surface are of a solid, the slower it will dissolve.
What is larger?
500
The ability of one substance to dissolve in another at a given temperature.
What is solubility?
500
Explain why people take antacids sometimes for heartburn and acid reflux.
What is to neutralize the stomach acids?
500
Name 2 acids in your body.
What is saliva and stomach acid (hydrochloric acid)?
500
Explain how to neutralize a strong base.
What is add an acid in small amounts or add water or a combination of the two?
500
Put the following common substances in order from most acidic to most alkaline:
bananas, lemons, ammonia, ocean water, and blood
What are lemons (pH2.5), bananas (pH5.2), blood (pH7.2), ocean water (pH8.5), and ammonia (pH11.5)?