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

Chemical changes, such as rotting fruit and burning wood, are affected by temperature. More heat and energy causes a faster chemical change.

Step-by-step explanation:

The best statement that Jacinta can add to her passage is:

Chemical changes, such as rotting fruit and burning wood, are affected by temperature. More heat and energy cause a faster chemical change.

This statement is correct because temperature is a factor that influences the rate of chemical reactions. Higher temperature means more kinetic energy for the molecules, which increases the chances of collisions and bond breaking. This leads to faster chemical changes and new substances being formed. The other statements are either incorrect or irrelevant to the topic of chemical changes.