Science: Grade 11 (2023)

Last updated 4 months ago

8 questions

1 point

1

Question 1

1.

Rust is not on the periodic table, so it is not a chemical.

Color change is a common indicator of chemical reactions.

1 point

1

Question 2

2.

When things rust, they fall apart.

Chemical reactions always make things heavier.

1 point

1

Question 3

3.

The mass of the jar will increase when the jar is open.

The mass of the jar will decrease when the jar is open.

The mass of the jar will not change when the jar is open.

1 point

1

Question 4

4.

The atomic masses of these elements.

The location of the elements within their rows (period).

1 point

1

Question 5

5.

1 point

1

Question 6

6.

Sulfur and oxygen are usually gases.

Sulfur and oxygen are in different rows.

1 point

1

Question 7

7.

Meat is kept in the freezer until it is cooked.

Apples aren’t peeled until just before they are eaten.

4 points

4

Question 8

8.