Froggy Jumps: Chromatography Edition


Froggy Jumps Chromatography EditionVersión en línea hi Chromatography Edition por MARIANA GOMEZ ARTUNDUAGA 1 What is chromatography used for? a Melting substances together b Separating mixtures into their components c Creating new chemical elements 2 What are the two main phases in chromatography? a Mobile phase and stationary phase b Liquid phase and solid phase c Acidic phase and basic phas 3 What is the mobile phase in chromatography? a The phase that moves through the system b The phase that stays still c The phase that evaporates 4 What is the stationary phase in chromatography? a The phase that dissolves completely b The phase that always changes color c The phase that remains fixed 5 What is paper chromatography? a A method that burns substances b A method that uses paper to separate substance c A method that freezes substances 6 What is thin-layer chromatography (TLC) used for? a Measuring temperature b Analyzing small amounts of substances c Producing electricity 7 What is the role of the solvent in chromatography? a To make the substances heavier b To destroy the substances c To carry the substances through the system 8 Why do different substances travel at different speeds in chromatography? a Due to their different affinities for the stationary phase b Because they have different weights c Because they react with each other 9 What does the Rf value represent in chromatography? a The boiling point of the solvent b The total weight of the substance c The ratio of distance traveled by a substance to the solvent front 10 How is the Rf value calculated? a Distance traveled by the substance + Distance traveled by the solvent b Distance traveled by the substance ÷ Distance traveled by the solvent c Distance traveled by the solvent × Distance traveled by the substance 11 What are some common solvents used in chromatography? a Sand, iron, and salt b Water, ethanol, and acetone c Mercury, gold, and copper

1

What is chromatography used for?

a

Melting substances together

b

Separating mixtures into their components

c

Creating new chemical elements

2

What are the two main phases in chromatography?

a

Mobile phase and stationary phase

b

Liquid phase and solid phase

c

Acidic phase and basic phas

3

What is the mobile phase in chromatography?

a

The phase that moves through the system

b

The phase that stays still

c

The phase that evaporates

4

What is the stationary phase in chromatography?

a

The phase that dissolves completely

b

The phase that always changes color

c

The phase that remains fixed

5

What is paper chromatography?

a

A method that burns substances

b

A method that uses paper to separate substance

c

A method that freezes substances

6

What is thin-layer chromatography (TLC) used for?

a

Measuring temperature

b

Analyzing small amounts of substances

c

Producing electricity

7

What is the role of the solvent in chromatography?

a

To make the substances heavier

b

To destroy the substances

c

To carry the substances through the system

8

Why do different substances travel at different speeds in chromatography?

a

Due to their different affinities for the stationary phase

b

Because they have different weights

c

Because they react with each other

9

What does the Rf value represent in chromatography?

a

The boiling point of the solvent

b

The total weight of the substance

c

The ratio of distance traveled by a substance to the solvent front

10

How is the Rf value calculated?

a

Distance traveled by the substance + Distance traveled by the solvent

b

Distance traveled by the substance ÷ Distance traveled by the solvent

c

Distance traveled by the solvent × Distance traveled by the substance

11

What are some common solvents used in chromatography?

a

Sand, iron, and salt

b

Water, ethanol, and acetone

c

Mercury, gold, and copper

Chromatography Edition

Froggy Jumps

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Chromatography EditionVersión en línea

por MARIANA GOMEZ ARTUNDUAGA

What is chromatography used for?

What are the two main phases in chromatography?

What is the mobile phase in chromatography?

What is the stationary phase in chromatography?

What is paper chromatography?

What is thin-layer chromatography (TLC) used for?

What is the role of the solvent in chromatography?

Why do different substances travel at different speeds in chromatography?

What does the Rf value represent in chromatography?

How is the Rf value calculated?

What are some common solvents used in chromatography?