instructions: classify each of the following as an elemente, a compoundc, or a mixturem.
11. gold
12. water
13. seawater
14. sugar
15. a chocolate sundae
16. air
17. carbon dioxide
18. silver
19. ice
20. a big mac®

Question

Accepted Answer

To solve this, we classify each substance based on the definitions:
- **Element (E):** Pure substance with one type of atom.
- **Compound (C):** Pure substance with two or more atoms chemically bonded.
- **Mixture (M):** Combination of two or more substances (not chemically bonded).

### 11. Gold
Gold is a pure substance with only gold atoms.
# Brief Explanations: Gold is an element (E) as it has one type of atom.
# Answer: E

### 12. Water
Water ($\ce{H_2O}$) has hydrogen and oxygen atoms bonded.
# Brief Explanations: Water is a compound (C) (two elements bonded).
# Answer: C

### 13. Seawater
Seawater has water, salt, minerals, etc. (multiple substances).
# Brief Explanations: Seawater is a mixture (M) (multiple substances).
# Answer: M

### 14. Sugar
Sugar (e.g., $\ce{C_{12}H_{22}O_{11}}$) has C, H, O bonded.
# Brief Explanations: Sugar is a compound (C) (multiple elements bonded).
# Answer: C

### 15. A chocolate sundae
A sundae has ice cream, chocolate, toppings, etc. (multiple substances).
# Brief Explanations: A chocolate sundae is a mixture (M) (multiple substances).
# Answer: M

### 16. Air
Air has $\ce{O_2}$, $\ce{N_2}$, $\ce{CO_2}$, etc. (multiple substances).
# Brief Explanations: Air is a mixture (M) (multiple gases).
# Answer: M

### 17. Carbon dioxide
$\ce{CO_2}$ has C and O atoms bonded.
# Brief Explanations: $\ce{CO_2}$ is a compound (C) (two elements bonded).
# Answer: C

### 18. Silver
Silver is a pure substance with only silver atoms.
# Brief Explanations: Silver is an element (E) (one type of atom).
# Answer: E

### 19. Ice
Ice is $\ce{H_2O}$ (same as water, just solid).
# Brief Explanations: Ice (water) is a compound (C) (H and O bonded).
# Answer: C

### 20. A Big Mac®
A Big Mac has bread, meat, cheese, etc. (multiple substances).
# Brief Explanations: A Big Mac is a mixture (M) (multiple ingredients).
# Answer: M

Final Answers (in order):
11. E
12. C
13. M
14. C
15. M
16. M
17. C
18. E
19. C
20. M

Sovi.AI - AI Math Tutor

QUESTION IMAGE

Question

Explanation:

11. Gold

Answer:

12. Water