P5 TWIG Exploring Chemical Reactions

Front

What are reactants in a chemical reaction?

Back

Reactants are the substances that are present at the start of a chemical reaction and undergo change during the reaction.

Front

Where are reactants located in a chemical equation?

Back

Reactants are always located on the left side of a chemical equation.

Front

What is a product in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction and are found on the right side of a chemical equation.

Front

What does it mean if a reaction is irreversible?

Back

An irreversible reaction is one where the reactants are converted into products and cannot be converted back to the original reactants.

Front

What does it mean if a reaction is reversible?

Back

A reversible reaction is one where the products can be converted back into the original reactants.

Front

What is the difference between coefficients and subscripts in a chemical equation?

Back

Coefficients indicate the number of molecules or moles of a substance, while subscripts indicate the number of atoms of an element in a molecule.

Front

What is the significance of balancing a chemical equation?

Back

Balancing a chemical equation ensures that the law of conservation of mass is followed, meaning the number of atoms of each element is the same on both sides of the equation.

Front

What is an example of a chemical reaction?

Back

An example of a chemical reaction is the combustion of paper, which is an irreversible reaction.

Front

What does it mean if a product is on both sides of a chemical equation?

Back

If a product is on both sides of a chemical equation, it indicates that the reaction is reversible.

Front

What is the role of energy in chemical reactions?

Back

Energy is required to break bonds in reactants and is released when new bonds form in products.