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Detonating Bubbles
When a test tube of hydrogen is ignited, you hear:
A. A loud pop

B. Breaking glass
C. Nothing
D. A hissing sound

Potassium Permanganate
The color of potassium permanganate solution is dark:

A. Red
B. Black
C. Purple
D. White

Testing for Carbon Dioxide

If we blow carbon dioxide into limewater:
A. The limewater gets cloudy
B. A precipitate falls to the bottom of the test tube
C. A and B
D. Take a deep breath first

If you spill limewater onto your skin you should:
A. Pour a strong acid on it to dissolve the limewater
B. Wash immediately
C. Wait until after the experiment to clean up

Generating Hydrogen Chlorine Gas

NaCl + NaHSO 4 HCl + Na 2SO 4
A. The equation is not balanced
B. The equation is an oxidation reduction reaction
C. The equation is a double replacement reaction
D. The equation is a hard one

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