Acids and Their Reactions

Acids and Their Reactions

Assessment

Interactive Video

Chemistry

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video covers the second class on acids, bases, and salts. It begins with a motivational quote and a recap of the previous lesson on indicators and the classification of acids. The instructor then discusses the physical properties of acids, such as taste, corrosiveness, and their ability to conduct electricity. The lesson continues with the chemical properties of acids, including reactions with metals, carbonates, and bases, highlighting the formation of salts and gases. The video concludes with a discussion on the common characteristics of acids, emphasizing the role of hydrogen ions in water, and ends with a summary and preview of the next class.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary reason acids conduct electricity in solution?

They turn blue litmus red.

They are corrosive.

They have a sour taste.

They dissociate into ions.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a common laboratory test for acids?

Checking if it turns blue litmus red

Tasting the acid

Measuring its sourness

Observing if it is corrosive

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What gas is evolved when acids react with active metals?

Nitrogen

Hydrogen

Oxygen

Carbon dioxide

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the test for the presence of hydrogen gas?

It changes the color of litmus paper.

It burns with a pop sound.

It turns lime water milky.

It has a pungent smell.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When acids react with metal carbonates, what is one of the products?

Carbon dioxide

Hydrogen

Nitrogen

Oxygen

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to lime water when carbon dioxide is bubbled through it?

It turns clear.

It remains unchanged.

It turns milky.

It changes to blue.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of a neutralization reaction between an acid and a base?

Hydrogen gas and carbon dioxide

Water and carbon dioxide

Salt and water

Salt and hydrogen gas

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