Bill Nye - Chemical Reactions

What is formed when chemicals react together?

• Only energy is released.
• Nothing happens during a reaction.
• New substances (compounds or mixtures) are formed.
• The original substances remain unchanged.

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What gases are produced from the electrolysis of water?

• Carbon dioxide and nitrogen gases
• Methane and ammonia gases
• Hydrogen and oxygen gases
• Helium and argon gases

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What happens when steel wool is exposed to oxygen?

• It dissolves

• It explodes

• Nothing

• It glows and burns

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How can you make a simple fire extinguisher?

• Mix baking soda and vinegar

• Throw flour on the fire to put it out

• Spray perfume to extinguish flames

• Use water and soap in a bucket

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What is the result of mixing vinegar and baking soda?

• It produces a strong acidic smell without any gas.
• The mixture creates a sweet syrupy solution.
• The result is a fizzy reaction that produces carbon dioxide gas.
• A solid mass forms that can be used as a cleaning agent.

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What is sodium chloride more commonly known as?

• Baking soda

• Vinegar

• Salt

• Bleach

What are the dangers of sodium and chlorine when separate?

• Sodium can explode in water; chlorine is toxic and can cause respiratory harm.
• Sodium and chlorine are both essential nutrients for the body.
• Chlorine is a harmless gas used in food preservation.
• Sodium is safe to handle and does not react with water.

What does the periodic table organize?

• Chemical reactions

• Elements by size

• Laboratory tools

• Elements by their properties

Which elements are grouped together on the periodic table due to similar behavior?

• Neon, Argon, Krypton

• Oxygen, Carbon, Hydrogen

• Iron, Copper, Zinc

• Calcium, Sodium, Potassium

What is the significance of Alfred Nobel in relation to chemistry?

• Discovered oxygen

• Developed the periodic table

• Invented dynamite

• Discovered the electron