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mixas84 [53]
3 years ago
11

The Sun appears to move in the sky because

Chemistry
2 answers:
Amiraneli [1.4K]3 years ago
4 0

Answer:

a because the earth rotates on its axis

atroni [7]3 years ago
4 0
A) Earth rotates on its axis
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Consider the following reaction, which is spontaneous at room temperature. C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(g) Is ΔS positive o
Ugo [173]

Answer:

∆H = negative and ∆S = positive.

Explanation:

The reaction given in the question is spontaneous at room temperature ,

hence ,

The the gibbs free energy , i.e. ,∆G will be negative for  spontaneous reaction

According to the formula ,

∆G = ∆H -T∆S

The value of ∆G can be negative , if  ∆H has a negative value and  ∆S has a positive value , because , T∆S  , has a negative sign .

Hence , the answer will be , ∆H = negative and ∆S = positive.

3 0
3 years ago
The process by which the movement of internal bonds converts one type of what organic compound into another is
nevsk [136]

Answer: It's is called Reaarrangement

Explanation:

Rearrangement is a chemic reaction in which an atom or group of atoms bond migrate from one carbon atom to another. The movement involves two adjacent atoms and move over a large distance. It is important in functional group transformation.

Reaarrangement can be classified based on the atom or group of atoms it migrate.

Nucleophilic rearrangement which involves the migration of atoms with electron pairs.

Electrophilic migration involved the migration of atom or groups without electron pair.

Free radical involves the atom or group of atoms moving with a lone pair of electron.

8 0
4 years ago
What does the atomic number mean or represent? also how do i make someone brainliest
sdas [7]

Answer:

it represents the numner of protons in an atoms nucleus

5 0
4 years ago
Quiz due soon need help ASAP
Rom4ik [11]

Answer:

3

Explanation:

Because in product 3CuSO4 is present it means 3 SO4 sulphate ions are present

8 0
3 years ago
An electrically neutral atom consists of 15 neutrons, 13 electrons, and a number
Anna71 [15]

Answer:c

Explanation: it states that the atom is neutral, meaning the number of electrons and protons are the same. so if there are 13 electrons, there are 13 protons. And the mass number is neutrons plus protons. So 13+15 is 28

5 0
3 years ago
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