IGS Ch KS4 Chem Analysis - Tests for Gases & Anions LEARN & TEST

"Bleaches damp litmus paper (turning it white) (it may turn red for a moment first)"

is the test for ...

• Chlorine

• Oxygen

• Carbon dioxide

• Hydrogen

"A glowing splint put inside a test tube of this gas relights"

is the test for ...

• Chlorine

• Oxygen

• Carbon dioxide

• Hydrogen

"Bubbling the gas through (or shaking with) an aqueous solution of calcium hydroxide (lime water) makes turns the solution cloudy"

is the test for ...

• Chlorine

• Oxygen

• Carbon dioxide

• Hydrogen

"Holding a lit splint near the open end of a test tube containing this gas results in a squeaky pop"

is the test for ...

• Chlorine

• Oxygen

• Carbon dioxide

• Hydrogen

"Bubbling the gas through (or shaking with) an aqueous solution of calcium hydroxide (lime water) makes turns the solution cloudy"

is the test for ...

"Bleaches damp litmus paper (turning it white) (it may turn red for a moment first)"

is the test for ...

"Holding a lit splint near the open end of a test tube containing this gas results in a squeaky pop"

is the test for ...

"A glowing splint put inside a test tube of this gas relights"

is the test for ...

Tests for anions often give precipitates.

Dilute acids are used to test for carbonates.

Dilute hydrochloric acid and barium chloride are used to test for sulfates.

Dilute nitric acid and silver nitrate are used to test for halides.

Which is an example of a halide?

• The "chloride" in "iron chloride"

• The "nitrate" in "iron nitrate"

• The "sulfate" in "iron nitrate"

Tests for anions often give precipitates.

Dilute acids are used to test for carbonates.

Dilute hydrochloric acid and barium chloride are used to test for sulfates.

Dilute nitric acid and silver nitrate are used to test for halides.

What would you use to test for "carbonate"?

• Dilute acid

• Dilute hydrochloric acid and barium chloride

• Dilute nitric acid and sliver nitrate