acidic reactions Flashcards
What is an acid?
A substance that donates protons (H+) in a chemical reaction.
True or False: Acids have a pH less than 7.
True.
Fill in the blank: The reaction of an acid with a metal produces _____ and hydrogen gas.
salt.
What is the general formula for a strong acid?
Strong acids completely dissociate in water.
Give an example of a strong acid.
Hydrochloric acid (HCl).
What is the pH range of strong acids?
0 to 3.
True or False: All acids taste sour.
True.
What happens when an acid reacts with a base?
They neutralize each other to form water and salt.
What is the product of an acid reacting with a carbonate?
Salt, water, and carbon dioxide.
Multiple Choice: Which of the following is a weak acid? A) HCl B) H2SO4 C) CH3COOH D) HNO3
C) CH3COOH.
What is the role of indicators in acid-base reactions?
Indicators change color to show the pH level of a solution.
Fill in the blank: The chemical formula for sulfuric acid is _____ .
H2SO4.
True or False: Acids can conduct electricity when dissolved in water.
True.
What is the term for a solution that has a pH of 7?
Neutral.
What is the primary characteristic of a base?
A substance that accepts protons (H+) or donates hydroxide ions (OH-).
Multiple Choice: Which of the following is a common household acid? A) Vinegar B) Baking soda C) Soap D) Bleach
A) Vinegar.
What is a neutralization reaction?
A reaction between an acid and a base that produces salt and water.
What gas is produced when an acid reacts with a metal carbonate?
Carbon dioxide (CO2).
What is the pH of pure water?
7.
True or False: Acids can corrode metals.
True.
Fill in the blank: The process of adding an acid to a solution to decrease its pH is called _____ .
acidification.
What do we call a solution that has a pH greater than 7?
Basic or alkaline.
What is the effect of a strong acid on litmus paper?
It turns blue litmus paper red.
What is the term for the strength of an acid?
Acidity.
Fill in the blank: Hydrochloric acid is commonly used in _____ .
laboratories and cleaning agents.
