Acids
What is a natural indicator? Why?
Hydrangeas, because their color changes depending on the acidity of the soil.
How are acids and bases similar?
They are on different ends of the pH scale.
Acid + base = _______ +________
Salt; Water
What's the definition of "Process"?
a series of actions or steps taken in order to achieve a particular end.
What happens when an acid touches limestone?
It bubbles!
Acids turn ___ litmus paper __.
Blue; red
Which of these descriptions is a property of a base?
feels slippery (a)
tastes sour (b)
reacts with metals (c)
reacts with carbonates (d)
A+B (e)
C+B (f)
E: feels slippery and tastes sour
What is an entirely neutral liquid pH?
7
What's the definition of "Indicator" definition?
A compound that changes color in the presence of an acid or base.
What color does blue litmus paper turn when reacting with a base?
It does nothing! Bases turn red litmus paper blue.
What are the four properties of acids?
Reactions with metals, reactions with carbonates, sour taste, & reactions with indicators
What is the range for alkaline substances on the pH scale?
8-14
How do you combine a formula of acids and a formula of a base?
Take away the “H” (proton) from the Acid formulas
Take away the “OH” (electron) from the base formula then combine.
The base formula goes 1st when combined
What is the definition of the word "acid"?
A substance that tastes sour, reacts with metals, and carbonates, and turns blue litmus paper red.
Why does the limestone react with the vinegar that way?
Acids react with Carbonate atoms making CO2!
What is hydrochloric acid?
Hydrochloric acid is an acid in your stomach that helps with digestion and breaking down foods.
What is an example of a bitter tasting base?
Tonic Water or Baking Soda
Why are the results of a neutralization reaction not always neutral?
Because they dont balance out
EX. if there is a little bit of strong base but alot of a strong acid, it would still be acidic
What is the definition of "base"?
A substance that tastes bitter, feels slippery, and turns red litmus paper blue.
What is water on the pH scale? Hint: we tested it!
7.0
Name three examples of metals that DO react with acids:
Aluminum, zinc & iron
Should you eat stuff to find out if it's a base? Yes or No? Why?
NO! You could die... so no
How is the process of neutralization reaction like the process of mixing white and black paints to get gray?
Possible answer : Because it's equaling the two colors out to get the color gray witch is neither black nor white, just like your equaling out an acid and base to get salt and water mixture witch is neither acidic or basic
What is the definition of "Salt"?
any ionic compound that can be made by a neutralization reaction
Which lab experiment was the best to test the pH?
The pH paper tester lab.