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n200080 [17]
3 years ago
12

Please help what are the number atoms for each?!

Chemistry
1 answer:
krok68 [10]3 years ago
6 0

Answer:

AI 2 ,CR 2, O 7

Explanation:

Tbh ion even know bro like imma need more info to answer that one cheif

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What type of sedimentary rock is gypsum?
Minchanka [31]

Answer:

Gypsum is a chemical sedimentary rock.

Explanation:

It forms when large bodies of water are rich in calcium and sulfate.

6 0
3 years ago
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Which of these statements about atomic models is most likely correct?
taurus [48]

Answer:

The correct option is the second option

Explanation:

Generally, the aim of science is to understand a particular concept in the best and the most correct way possible; hence experiments are done and repeated to ensure an explanation is actually true about a concept or need modification.

The atomic models have also been a "beneficiary" of this process. The different atomic models are usually been improved upon as scientists leaned more. For example, the Dalton's atomic theory has been modified to a more correct atomic description; some of which are shown below

(1) Dalton's theory suggested that an atom is the smallest unit of a molecule. We know now from different experiments (by J. J Thompson and Rutherford) that atoms are not the smallest molecules and are made up of smaller particles known as protons, neutrons and electrons.

(2) Dalton's theory suggested that atoms of the same elements are alike in all aspects. The knowledge of isotopy shows this is not always the case. As atoms of the same elements (isotopes) have the same atomic number but different mass number; hence cannot be said to be the same in all aspects.

(3) Dalton's theory also suggested that when atoms react, they do so in fixed, simple whole number ratio. The knowledge of organic chemistry shows atoms do not always react in simple whole number ratios

There are several modifications to different postulations by scientists that have also occurred aside from this, hence the most correct answer is that "As scientists learned more, they modified the atomic model"

5 0
3 years ago
What makes electrons jumo to other orbits around the nucleus then fall again?
Tamiku [17]

Answer:

The higher the excitation state, the more energy the electron contains. When an electron absorbs energy, it jumps to a higher orbital. ... An electron in an excited state can release energy and 'fall' to a lower state.

7 0
3 years ago
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A dog is trained to sit and shake hands. These traits are most likely?
tresset_1 [31]
Hi there! ~

Your answer is B. Not inherited, simply because dogs aren't born to know these things, you have to train them. 
8 0
3 years ago
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Help me with this answer I really need it
yulyashka [42]

Answer:

THe answer I belive is B

Explanation:

6 0
3 years ago
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