Show:
Acids
Bases
neutral(ization)
pH
potpourri
100
turns litmus paper __________
What is red?
100
turn litmus paper ________
What is blue?
100
is a reaction between _____________ and ___________
What is an acid and a base?
100
pH scale measures
What is the concentration of hydrogen ions?
100
name 2 properties of bases
What is bitter; turn litmus blue; feel slippery?
200
called ______________ because they can "eat away" at other materials
What is corrosive?
200
taste __________
What is bitter?
200
the number on the pH scale that represents neutral
What is 7?
200
if a solution has a pH of 10, the solution is
What is a base?
200
acids react with
What is metals and carbonates?
300
the numbers that represent acids on the pH scale
What is 0-6?
300
the numbers that represent bases on the pH scale
What is 8-14?
300
the products of a neutralization reaction
What is water and "a salt"?
300
normal rainfall is slightly acidic, which means its pH must be ____________
What is between 3 and 6?
300
chalk is an example of _________________, which react with acids
What is a carbonate?
400
produce ___________________ in water
What is hydrogen ions (H+)
400
In water, bases form _____________
What is hydroxide ions (OH-)?
400
name 2 salts that might be produced during a neutralization reaction
sodium chloride; calcium chloride; postassium chloride
400
you can find the pH of a substance by using
What is an indicator?
400
A substance does not react with a metal, and turns litmus paper blue. What can you infer about the substance?
What is the substance is an acid?
500
Apples have a pH of 3.3; bananas have a pH of 4.5. Which has the more sour taste? Explain.
What is apples, because apples have a lower pH number which means they are a stronger acid than bananas?
500
Name a likely use for bases
What is soaps or household cleaners?
500
write a chemical equation for a neutralization reaction
What is acid + base yields "a salt" + water?
500
draw a pH scale; place the labels: 0, 7, 14; base; acid; neutral
What is ---------Acids------ ------neutral------- ----bases---------- ________________________________________________ 0 7 14
500
You are given 3 clear, clolorless, unknown solutions, and red and blue litmus papers. Describe the steps you might take to correctly identify each solution as acidic, basic, or neutral.
What is dip litmus paper into each solution and watch for any color changes. The solution that makes the litmus paper blue is a base; the solution that makes the litmus paper red is an acid; the solution that doesn't cause a color change is neutral.