Reactions: Chemical Reactions in Action

The video explores the differences in forest appearance between spring and summer, focusing on the emergence of leaves. It explains photosynthesis, where plants convert carbon dioxide and water into oxygen and sugars using sunlight. The video also introduces chemical reactions, highlighting reactants and products, using the example of baking soda and vinegar. It concludes by distinguishing between mixtures and chemical reactions, using a fruit salad as an example where no new substances are formed.

What is the primary chemical process occurring in leaves during spring?

• Oxidation

• Fermentation

• Respiration

• Photosynthesis

Which substances are used by plants during photosynthesis to produce oxygen and sugar?

• Carbon monoxide and water

• Oxygen and glucose

• Carbon dioxide and water

• Nitrogen and water

In a chemical reaction, what are the substances called that enter the reaction?

• Catalysts

• Reactants

• Inhibitors

• Products

What are the products formed when baking soda reacts with vinegar?

• Sodium chloride and hydrogen gas

• Sodium acetate, carbon dioxide, and water

• Sodium hydroxide and oxygen

• Sodium carbonate and methane

What happens to the original substances in a physical mixture like a fruit salad?

• They dissolve completely

• They change into new substances

• They form new chemical bonds

• They remain unchanged