Please help 1: Wood being sawed in half is an example of .

2: Dicing tomatoes is a physical change. T or F

3: Milk turns sour. This is an example of .

4: The mass of lead is a property.

5: Which of the following is a physical change?

6: Which of the following is a chemical change?

7: Which of the following is a chemical change?

1. Physical change

2. T

3. Chemical change

4. Physical

5. ?

6. ?

7. ?

Explanation:

There are no choices listed for 5, 6, and 7 but I can help with those if you add a picture or clarification.

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

it would be a gas formation