Which of these is an example of a chemical change? (1 point) a Dissolving two cups of flour in a liter of water b Pouring water from a large trough into a beaker c Decreasing the motion of water molecules by freezing d Forming oxygen by bubbling fluorine through water

Question

Which of these is an example of a chemical change? (1 point) a Dissolving two cups of flour in a liter of water b Pouring water from a large trough into a beaker c Decreasing the motion of water molecules by freezing d Forming oxygen by bubbling fluorine through water

Answer 1

### d. Forming oxygen by bubbling fluorine through water

Answer 2

## Step1: Identify the nature of each option### Examine each option to determine whether it represents a chemical change or a physical change.- Option a: Dissolving flour in water is a physical change because no new substance is formed.- Option b: Pouring water is a physical change because it involves a change in the state of matter without altering the chemical composition.- Option c: Freezing water decreases the motion of molecules but does not change the chemical composition, making it a physical change.- Option d: Forming oxygen by bubbling fluorine through water results in the formation of new substances (oxygen and hydrogen fluoride), indicating a chemical change.## Step2: Select the correct option### Identify the option that represents a chemical change based on the analysis.- Option d is the correct answer because it involves the formation of new substances.#

Question

Which of these is an example of a chemical change? (1 point) a Dissolving two cups of flour in a liter of water b Pouring water from a large trough into a beaker c Decreasing the motion of water molecules by freezing d Forming oxygen by bubbling fluorine through water

Answer

Answer

Explanation