Acids And Bases

Question 1

What is an acid?

Answer 1

A substance that donates protons (H+) in a chemical reaction.

Question 1

What is a base?

Answer 1

A substance that accepts protons (H+) or donates hydroxide ions (OH-) in a chemical reaction.

Question 1

True or False: Acids have a pH value less than 7.

Answer 1

True

Question 1

What is the pH scale range?

Answer 1

0 to 14

Question 1

Fill in the blank: A strong acid completely _____ in water.

Answer 1

ionizes

Question 1

Fill in the blank: A weak base partially _____ in water.

Answer 1

ionizes

Question 1

What is the chemical formula for hydrochloric acid?

Answer 1

HCl

Question 1

What is the chemical formula for sodium hydroxide?

Answer 1

NaOH

Question 1

How do you identify an acid using litmus paper?

Answer 1

It turns blue litmus paper red.

Question 1

How do you identify a base using litmus paper?

Answer 1

It turns red litmus paper blue.

Question 1

What is the process called when an acid reacts with a base?

Answer 1

Neutralization

Question 1

True or False: Bases have a pH value greater than 7.

Answer 1

True

Question 1

What type of ions do acids produce in solution?

Answer 1

Hydrogen ions (H+)

Question 1

What type of ions do bases produce in solution?

Answer 1

Hydroxide ions (OH-)

Question 1

What is a neutral pH value?

Answer 1

7

Question 1

Name one common household acid.

Answer 1

Vinegar (acetic acid)

Question 1

True or False: All bases are slippery to the touch.

Answer 1

True

Question 1

What is the term for a solution that has a pH of 7?

Answer 1

Neutral solution

Question 1

What is the pH of lemon juice?

Answer 1

Typically around 2 to 3.

Question 1

Name one common household base.

Answer 1

Baking soda (sodium bicarbonate)

Question 1

What is the effect of acids on metals?

Answer 1

They can destroy or react with them.y

Question 1

What is the term for the concentration of hydrogen ions in a solution?

Answer 1

Acidity

Question 1

What is the term for the concentration of hydroxide ions in a solution?

Answer 1

Alkalinity

Question 1

True or False: All acids are sour in taste.

Answer 1

True

Question 1

What is the common use of citric acid?

Answer 1

As a natural preservative and flavoring agent.

Question 1

What happens when an acid is mixed with a base?

Answer 1

They undergo a neutralization reaction, producing water and a salt.

Question 28

What is PH scale?

Answer 28

A set of numbers from 0 - 14 that is used to determine the strength of a acid or base

Question 29

What does PH stand for?

Answer 29

Potential hydrogen

Question 30

Litmus in acid and base colour

Answer 30

O-blue Colour change in acid(red) Colour change in base(blue)

Question 31

Methol in acid and base colour

Answer 31

O-red

Question 32

Bromothymol blue in acid and base colour

Answer 32

O-blue Acid(yellow) Base(blue)

Question 33

What is a universal indicator?

Answer 33

A universal indicator is a pH indicator that changes color to show the acidity or alkalinity of a solution.

Question 34

True or False: Universal indicators can only indicate pH levels of 0 to 7.

Answer 34

False

Question 35

Fill in the blank: A universal indicator typically changes color in response to pH levels ranging from ____ to ____.

Answer 35

0 to 14

Question 36

Which color would a universal indicator turn in a strongly acidic solution (pH 1)?

Answer 36

Red

Question 37

What is the purpose of using a universal indicator in experiments?

Answer 37

To determine the pH level of different solutions by observing the color change.

Question 38

Phenolphthalein in acid and base colour

Answer 38

O-clear Acid (colorless) Base(pink)

Question 39

Citric-acid

Answer 39

Household and mineral Formula C6H507

Question 40

Hydrochloric-acid

Answer 40

Mineral Formula-HCI

Question 41

Sulfuric-acid

Answer 41

Mineral Formula-H2SO4

Question 42

Tartaric-acid

Answer 42

Household Formula-C4H6O6

Question 43

Nitric-acid

Answer 43

Mineral Formula-HNO3