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The video explains the basic conventions of writing chemical reactions, where reactants are placed on the left and products on the right. It also discusses the reversibility of reactions, highlighting that products can act as reactants under certain conditions.

What is the standard convention for writing a chemical reaction?

• Reactants on the right, products on the left

• Reactants on the left, products on the right

• Reactants and products on the same side

• Reactants above, products below

In a chemical equation, where are the products typically placed?

• On the left side

• On the right side

• Below the reactants

• Above the reactants

Which of the following statements is true about chemical reactions?

• Products can never become reactants

• Reactants are always consumed completely

• They can only proceed in one direction

• They can proceed in both directions under certain conditions

What can happen to the products of a chemical reaction under certain conditions?

• They can become reactants

• They can disappear

• They can only remain as products

• They can change into new elements

Why is it important to understand the reversibility of chemical reactions?

• To predict the final state of a reaction

• To prevent products from forming

• To ensure reactants are always on the left

• To make sure reactions only go forward