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4th grading > Chemistry (4th) > Flashcards

Chemistry (4th) Flashcards

1
Q

What is the taste of Acids?

A

Sour

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2
Q

What is the taste of Bases?

A

Bitter

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3
Q

In litmus paper, acid turns?

A

Red

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4
Q

In litmus paper, bases turns to?

A

Blue

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5
Q

Acid/Base is slippery

A

Base

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6
Q

Acid/Base is sticky

A

Acid

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7
Q

Acids are?

A

Electrolytes

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8
Q

Bases are?

A

Not electrolytes

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9
Q

In Methyl orange, acid turns to?

A

orange

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10
Q

In Methyl orange, base turns to?

A

Reddish

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11
Q

Phenolphthalein, acid and base turns to?

A

Acid - colorless
Base - Pink or faith pink

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12
Q

Bromothylmol Blue, acid and base turns to?

A

Acid - yellow
Base - blue

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13
Q

pH: Less than 7….

A

Reacts with most metals to prduce H2 and salt.
React with metal oxides to produce water and salt.
Neutralized bases

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14
Q

pH: Greater than 7…

A

Neutralized acids

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15
Q

A substance possessing both acid and base properties is called?

A

Amphiprotic

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16
Q

An example of amphiprotic is?

A

Water (H2O)

17
Q

Bronsted-Lowry Acid focuses on?

A

The exchange of transfer of protons.

18
Q

This is a substance capable of Donating a proton?

A

Acid

19
Q

This is a substance capable of Receiving a proton

A

Base

20
Q

Remember DAAB

A

Donor Acid, Acceptor Base

21
Q

We add hydrogen and add charge by 1 (+H+1) in the product side is called?

A

Conjugate acid

22
Q

We remove hydrogen and decrease the charge by 1 (-H-1) in the product side is called?

A

Conjugate base

23
Q

A reaction that involves the transfer of electrons between chemical species.

A

Redox reaction

24
Q

Redox reaction is also called a/an?

A

oxidation-reduction

25
Q

Oxidation _____ an electron (OIL)

A

Loses

26
Q

Reduction ______ an electron (REDGE)

A

Gains

27
Q

Examples of redox reaction are?

A

Batteries, Breathalyzer, fossils, etc.

28
Q

Acid produces ____ ions in aqueous solutions.

A

H+

29
Q

Base produces ____ ions in aqueous solutions.

A

OH-

30
Q

This is a methods for tracking where electrons go during a chemical reaction.

A

Oxidation number

31
Q

This is a reactant contains the reduced element.

A

Reducing agent

32
Q

A process by which electrons are transferred from the metal to the non metal.

A

Oxidation-Reduction

33
Q

What are the examples of Redox reactions?

A

a. breakdown of glucose in the body
b. Bleaching of hair
c. Chemical reactions inside of batteries.
d. Photosynthesis

34
Q

What are the examples of oxidation reaction?

A

a. Combustion of fuels.
b. Corrosions of materials.
Change of color of fruits like apples, bananas. when they are cut.
c. Burning of crackers.

4th grading (4 decks)

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