Question

Jacinta wrote the following passage about chemical changes.

A chemical change is a change that results in one or more new substances with different properties. When a chemical change occurs, the new substance can give off an odor, such as rotting fruit or cookies baking in the oven. Chemical changes can cause color changes, such as iron rusting and turning a reddish-brown color. When wood is burned or ingredients are mixed for baking a cake, a new substance is made.

Choose the best statement that Jacinta can add to her passage.

Chemical changes, such as rotting fruit and burning wood, are affected by temperature. More heat and energy causes a faster chemical change.
Wood burning and fruit rotting creates new substances through a chemical change that is affected by sound energy.
Rotting fruit and burning wood is a chemical change that occurs because there is a decrease in temperature. Less heat causes a faster chemical change.
When a chemical change occurs, the new substance that is created has properties similar to the original substance.

Answer 1

Jacinta can add a statement about chemical changes being affected by temperature, where heat and energy speed up these processes, such as in the cases of rotting fruit and burning wood.

Step-by-step explanation:

The best statement Jacinta can add to her passage about chemical changes is that these changes, such as rotting fruit and burning wood, are affected by temperature.

More heat and energy cause a faster chemical change. This is consistent with observations that chemical reactions frequently involve temperature changes, and an increase in temperature often accelerates the reaction process. Rotting fruit, for example, occurs more rapidly in warm conditions, and burning of wood is facilitated by heat, both indicating the influence of temperature on chemical changes.