Acids and Bases

Front

What is an Arrhenius acid?

Back

A substance that produces H+ in water.

Answer explanation

An Arrhenius acid has a H in the beginning of its formula and produces H+ in water.

Tags

HS-PS1-B

Front

Arrhenius base

Back

A substance that produces OH- ion in water.

Answer explanation

An Arrhenius base has a OH at the end of its formula and produces OH- in water.

Tags

HS-PS1-B

Front

A student tests an unknown aqueous solution and finds it conducts electricity and turns litmus paper red. What can the student infer?

Back

The solution contains an acid.

Answer explanation

Acidic solutions conduct electricity and turn litmus paper red.

Tags

HS-PS1-B

Front

A student tests an unknown aqueous solution and finds it conducts electricity and turns litmus paper blue. What can the student infer?

Back

The solution contains a base.

Answer explanation

Basic solutions conduct electricity and turn litmus paper blue.

Tags

HS-PS1-B

Front

Which of the following is a Bronsted-Lowry Conjugate acid-base pair?

HCl and NaOH

,

H₃O⁺ and OH^-

,

H₂SO₄ and HSO₄^-

,

H₂S and S^2-

Back

H₂SO₄ and HSO₄^-

Answer explanation

There is only one hydrogen difference between an acid and its conjugate base or a base and its conjugate acid.

Tags

HS-PS1-B

Front

According to Bronsted-Lowry, what does an acid do?

Back

It donates a proton (H⁺).

Answer explanation

A Bronsted-Lowry acid donates a proton.

Tags

HS-PS1-B

Front

According to Bronsted-Lowry, what does a base do?

Back

It accepts a proton (H⁺)

Answer explanation

A Bronsted-Lowry base accepts a proton.

Tags

HS-PS1-B

Front

What is the name of HCl?

Back

hydrochloric acid

Answer explanation

This is a binary acid (only contains 2 elements) so it must start with "hydro-" and end is "-ic acid".

Tags

HS-PS1-B

Front

What is the name of HClO₃?

Back

chloric acid

Answer explanation

This is an oxyacid containing the polyatomic ion chlorate, ClO₃^-.

Change "-ate" to "-ic" and add the word "acid".

Tags

HS-PS1-B