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Leno4ka [110]
3 years ago
12

1. Which statement describes the earliest model of the atom?

Chemistry
1 answer:
zloy xaker [14]3 years ago
5 0

Answer:

A). An atom is an indivisible hard-sphere.

Explanation:

The 'Atomic Theory' of Dalton is characterized as the earliest model(came in 1803) which described the atoms as the indivisible and resistant spheres. He <u>used the example of watermelon to elaborate that the atoms of a specific element share similar characteristics</u> and the atoms of distinct elements differ in their mass as well as their size. Thus, <u>option A</u> is the correct answer.

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Prompt
barxatty [35]

Answer:

Clear Communication

Explanation:

Clear communication in key when working with a team on a project. Without communication things get messy. Having clear communication with your team mates helps to prevent miscommunication, issues in planning and completing the project, and more. Clear communication can also help you to hear everybody out to come out with the best version of your project and to prevent fighting that would take up time that you could be working.

5 0
2 years ago
A piece of iron (C=0.449 J/g°C) and a piece of gold (C=0.128 J/g°C) have identical masses. If the iron has an initial temperatur
spin [16.1K]

Answer:

The correct answer is B. Since the two metals have the same mass, but the specific heat capacity of iron is much greater than that of gold, the final temperature of the two metals will be closer to 498 K than to 298 K

Explanation:

Iron is hotter and gold is colder, therefore, according to laws of thermodynamics, iron will lose heat to gold until they are at the same temperature.

The specific heat capacity of iron(0.449) is over three times that of gold(0.128). Since masses are equal, this means that each time iron's temperature drops by one degree, the energy released it releases makes gold's temperature increase by more than 3 degrees. So gold's temperature will be climbing much faster than iron's is falling. Meaning they will meet closer to the initial temperature of iron than that of gold

4 0
3 years ago
Where do most carbon monoxide emissions come from?
qwelly [4]

Answer:

The largest anthropogenic source of CO in the United States is vehicle emissions.

Explanation:

4 0
3 years ago
photosynthesis in plants require chloroplasts and light energy. identify two materials plants also use in this process ​
Nataliya [291]

I would assume carbon and water if not Im sorry.

5 0
3 years ago
Compare and contrast the atomic structure of the chlorine-35 and chlorine-37 isotopes
katrin [286]

Chlorine-35 and 37 both have the same number of protons. Chlorine-37 has two more neutrons.

hope this helps!

(:

3 0
3 years ago
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