What would happen to the current model of the atom if new information about its structure is discovered in the future?
A. The current atomic model would be revised.
B. The current atomic model would be strengthened.
C. The current atomic model would be proven.
D. The current atomic model would be defended.
Is the answer A?
Thanks
For me (a connexus student) the correct answers on 1-16 were:
1. C- new information about an atoms structure is discovered
2. B- metal
3. B & D B-it is stable, D- it belongs to Group 18
4. C- no, the actual mass is 13.8 g
5. D- the milk has undergone a chemical change
6. D- 8Fe + S(down low "8") ---> 8FeS
7. B- photosynthesis
8. C- a person driving a car
9. A- respiration, photosynthesis, decomposition
10. D- Exothermic reactions
11. A- one
12. A & D A- transition metals, D- group 4, period 6
13. C- likely to form an ionic bond
14. A & C A- K(high up "+1"), C- F(high up "-1")
15. B- Zn + 2HCl ---> H(low down "2") + ZnCl(low down "2")
16. B- Carbon isotopes
My ungraded 17-23 that I'm pretty confident in:
17. Electron
18. Atomic model
19. Covalent bond
20. Ionic bond
21. Orbit
22. Atomic theory
23. Atomic number
I'm pretty sure the essay is basically:
1. A- About how plants make sunlight, Co2, and water into oxygen, B- endothermic because it takes in those energies
2. Fossil fuels being burned in the form of gas by cars and to make energy produces Co2 which goes to the edges of our atmosphere and gets stuck there and the heat from the sun gets trapped in the atmosphere.
The answers are
B
A
B
A
D
1)C
2)B
3)B,D
4)C
5)D
6)D
7)D
8)C
9)A
10)D
11)A
12)A,D
13)C
14)A,C
15)B
16)B
Electron
Atomic model
Covalent bond
Chemical bond
Energy level, orbital, or shell
Atomic theory
Atomic number
•Photosynthesis turns carbon dioxide into oxygen chemical which is a chemical change. It is endothermic due to the fact that it needs energy for it to happen.
•Well, driving a car and using electricity uses fossil fuels. Driving your car causes combustion, which consequently, releases carbon dioxide into the atmosphere.