Chapter 26- Acids And Basses Flashcards Preview

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Flashcards in Chapter 26- Acids And Basses Deck (21)
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1

Name three everyday acids

Lemon juice
Rain water
Vinegar

2

Acid turns blue litmus
Red litmus

Red

3

Base turns litmus ______

Blue

B.lue for B.ase

4

Acids have a ____ pH

Low

5

Bases have a ____ pH

High

6

Name three lab bases

-sodium hydroxide (NaOH)
-calcium carbonate (CaCO3)
-Limewater (Ca(OH)2)

7

Name three everyday bases

Toothpaste
Bleach
Indigestion tablets

8

Alkali

A base that is soluble in water

9

Neutral

A group of substance with a pH of 7
Neither acidic or basic

10

To create your own indicator

Boil red cabbage leaves

11

Universal indicator levels

Red (1pH)

|orange
|yeallow
|green
|/

Purple/Blue (14pH)

12

Neutralisation

Acid+base-> salt + water

13

Give an example of neutralisation

Dilute Hydrochloric acid + Sodium Hydroxide = salt+carbon dioxide +water

HCL+ NaOH = NaCh + Co2 + H2O

14

Titration

Allows you to find out exactly how much acid is needed to neutralise a base

15

Pipette measures

Base
Eg NaOH

16

Burette measures

Acid
Eg. HCL

17

Explain steps for titration

Pipettes 25cm^3 of NaOH
Add indicator
Burette drop HCL in until indicator changes

Do result again w/o indicator
Will be left with NaCl and H2O

18

Equation for metal reacting with acid

Zinc+Hydrochloric acid-> Zinc Chloride +hydrogen

19

When metals and acids react ___ and ___ are produced

Salt
Hydrogen

20

Test for hydrogen

Lighting a splint and seeing if it will burn with a pop sound

21

Name two lab acids

HCL acid
Sulfuric acid