Acids & Bases Challenge

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Acids, bases, and pH basics

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NUR AFIQAH SYAHMINA BINTI SUHAILAH

Malaysia

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Froggy Jumps Acids & Bases ChallengeOnline version Acids, bases, and pH basics by NUR AFIQAH SYAHMINA BINTI SUHAILAH 1 What is the Arrhenius definition of an acid? a A substance that donates electrons to form salts b A substance that decreases OH- ions in solution c A substance that increases H+ ions in solution 2 What is the Arrhenius definition of a base? a A substance that donates H+ ions in solution b A substance that accepts electrons from acids c A substance that increases OH- ions in solution 3 Which pH range indicates an acidic solution? a pH less than 7 b pH exactly 7 c pH greater than 7 4 Which indicator changes color in acidic vs basic solutions? a Methyl orange does not change color b Litmus paper c Phenolphthalein alone 5 Which statement best describes a buffer? a A solution that resists pH change when acids or bases are added b A solution that neutralizes all acids immediately c A solution that quickly changes pH with any addition 6 What does a strong acid do in water? a Dissociates completely to give lots of H+ b Dissociates partially to give few H+ c Does not dissociate and remains intact 7 What does a strong base do in water? a Forms a weak conjugate acid in solution b Consumes OH- to form water only c Dissociates completely to give OH- 8 Which of the following is a weak acid? a Hydrochloric acid (HCl) b Hydrobromic acid (HBr) c Acetic acid (CH3COOH) 9 What is neutralization? a An acid loses a proton to form an anion b A base absorbs a proton without producing salt c An acid reacts with a base to form water and a salt 10 Which scale measures acidity and basicity? a The Richter scale b The Beaufort scale c The pH scale

Froggy Jumps

Acids & Bases ChallengeOnline version

Acids, bases, and pH basics

by NUR AFIQAH SYAHMINA BINTI SUHAILAH

What is the Arrhenius definition of an acid?

A substance that donates electrons to form salts

A substance that decreases OH- ions in solution

A substance that increases H+ ions in solution

What is the Arrhenius definition of a base?

A substance that donates H+ ions in solution

A substance that accepts electrons from acids

A substance that increases OH- ions in solution

Which pH range indicates an acidic solution?

pH less than 7

pH exactly 7

pH greater than 7

Which indicator changes color in acidic vs basic solutions?

Methyl orange does not change color

Litmus paper

Phenolphthalein alone

Which statement best describes a buffer?

A solution that resists pH change when acids or bases are added

A solution that neutralizes all acids immediately

A solution that quickly changes pH with any addition

What does a strong acid do in water?

Dissociates completely to give lots of H+

Dissociates partially to give few H+

Does not dissociate and remains intact

What does a strong base do in water?

Forms a weak conjugate acid in solution

Consumes OH- to form water only

Dissociates completely to give OH-

Which of the following is a weak acid?

Hydrochloric acid (HCl)

Hydrobromic acid (HBr)

Acetic acid (CH3COOH)

What is neutralization?

An acid loses a proton to form an anion

A base absorbs a proton without producing salt

An acid reacts with a base to form water and a salt

Which scale measures acidity and basicity?

The Richter scale

The Beaufort scale

The pH scale

You can integrate the game into an LMS compatible with LTI 1.1 or LTI 1.3 such as Canvas, Moodle, or Blackboard. This way, the scores will be automatically saved into the platform’s gradebook.

Acids & Bases Challenge

Froggy Jumps

About this activity

Created by

Download the paper version to play

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Acids & Bases ChallengeOnline version

by NUR AFIQAH SYAHMINA BINTI SUHAILAH

What is the Arrhenius definition of an acid?

What is the Arrhenius definition of a base?

Which pH range indicates an acidic solution?

Which indicator changes color in acidic vs basic solutions?

Which statement best describes a buffer?

What does a strong acid do in water?

What does a strong base do in water?

Which of the following is a weak acid?

What is neutralization?

Which scale measures acidity and basicity?

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