1. For which of the following activities might you want to hire a chemist?

A. testing a sample of water from a well

B. finding a comet

C. examining the structure of plant cells

D. building a garage

2. Which of the following procedures involves a physical change in one of the substances?

A. creating salt by reacting sodium metal and chlorine gas

B. allowing a nail to rust

C. building a model rocket propelled by mixing baking soda and vinegar

D. grinding chalk into a fine powde 3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?

A. 1

B. 3

C. 6

D. 18

Question

Biology

Miah Gaines

6 September, 15:41

1. For which of the following activities might you want to hire a chemist?

A. testing a sample of water from a well

B. finding a comet

C. examining the structure of plant cells

D. building a garage

2. Which of the following procedures involves a physical change in one of the substances?

A. creating salt by reacting sodium metal and chlorine gas

B. allowing a nail to rust

C. building a model rocket propelled by mixing baking soda and vinegar

D. grinding chalk into a fine powde 3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?

A. 1

B. 3

C. 6

D. 18

+2

Answers (1)

Know the Answer?

Azul Cervantes · Answer 1

1. For which of the following activities might you want to hire a chemist? A. testing a sample of water from a well

2. Which of the following procedures involves a physical change in one of the substances?

D. grinding chalk into a fine powder

3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?

C. 6