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WorksheetsExploring the World of Acids
Total questions: 20
Worksheet time: 10mins
What are the common properties of acids?
Bitter taste
Turning red litmus paper blue
Ability to absorb heat
Common properties of acids include sour taste, ability to conduct electricity, reaction with bases, and turning blue litmus paper red.
How do acids taste?
Bitter
Sour
Sweet
Salty
What is the pH range of acids?
-1 to 0
7 to 14
6.9 to 10
0 to 6.9
Name three types of acids based on their strength.
acetic salts
sulfuric bases
carbonic acids
Strong acids, weak acids, moderate acids
What is a strong acid? Give an example.
Acetic acid (CH3COOH)
Nitric acid (HNO3)
Hydrochloric acid (HCl)
Sodium hydroxide (NaOH)
What is a weak acid? Give an example.
Sulfuric acid (H2SO4)
Hydrochloric acid (HCl)
Nitric acid (HNO3)
Acetic acid (CH3COOH)
What is the role of acids in acid-base reactions?
Acids neutralize bases without any reaction.
Acids donate protons in acid-base reactions.
Acids absorb protons in acid-base reactions.
Acids increase the pH of a solution in reactions.
What happens when an acid reacts with a base?
An acid and a base react to form water and a salt.
An acid and a base explode upon contact.
An acid and a base create a new acid.
An acid and a base produce only gas.
What is the chemical equation for a neutralization reaction?
HA + BOH → H2 + BA
HA + BOH → BA + H2O
HA + B → H2O + AOH
HA + BOH → H2O + B
List two common uses of hydrochloric acid.
Cleaning agent
Fertilizer production
Water treatment
1. Food processing 2. Laboratory reagent
How is sulfuric acid used in batteries?
Sulfuric acid acts as the electrolyte in lead-acid batteries.
Sulfuric acid is a primary component in alkaline batteries.
Sulfuric acid is used as a coolant in batteries.
Sulfuric acid is used to clean battery terminals.
What is citric acid and where is it commonly found?
Citric acid is a synthetic compound used in plastics.
Citric acid is a weak organic acid commonly found in citrus fruits.
Citric acid is a strong inorganic acid found in vinegar.
Citric acid is a type of sugar found in dairy products.
What safety precautions should be taken when handling acids?
Use open flames to heat acids
Wear PPE, work in a ventilated area, add acid to water, keep neutralizing agents nearby.
Store acids in unmarked containers
Mix water with acid directly
Why is it important to wear gloves when working with acids?
Gloves are only needed for strong bases, not acids.
It is important to wear gloves when working with acids to protect the skin from chemical burns and irritation.
Gloves are unnecessary when using diluted acids.
Wearing gloves can cause skin irritation.
What should you do if acid spills on your skin?
Cover the spill with a cloth and wait for it to dry.
Rinse the skin with water for at least 15 minutes and seek medical help.
Apply ice to the area immediately.
Use soap and scrub the area vigorously.
How should acids be stored safely?
Store acids in glass containers at room temperature.
Keep acids in open containers in direct sunlight.
Store acids in corrosion-resistant containers in a cool, ventilated area, away from incompatible materials.
Mix acids with bases for storage.
What is the effect of acids on metals?
Acids turn metals into liquid.
Acids react with metals to produce hydrogen gas and a salt.
Acids make metals stronger.
Acids have no effect on metals.
What is the role of acids in digestion?
Acids are responsible for producing bile in the liver.
Acids neutralize enzymes and slow down digestion.
Acids primarily serve to absorb fats in the stomach.
Acids aid in digestion by activating enzymes, breaking down proteins, killing bacteria, and enhancing nutrient absorption.
How do acids contribute to environmental issues?
Acids have no impact on climate change or pollution.
Acids are essential for maintaining clean water sources.
Acids contribute to environmental issues by causing acid rain, harming ecosystems, and degrading soil and water quality.
Acids improve soil fertility and promote plant growth.
What is the importance of understanding acids in chemistry?
Acids are essential for understanding chemical reactions, pH balance, and biological processes.
Acids have no impact on environmental science.
Acids are only relevant in industrial applications.
Understanding acids is not necessary for studying organic chemistry.
