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DerKrebs [107]
3 years ago
9

I WILL GIVE 50 POINTS AND BRAINLIEST TO WHO EVER ANSWERS THIS RIGHT AND FAST!!! PLS!!!!

Chemistry
2 answers:
lyudmila [28]3 years ago
6 0

Answer: D

Explanation: I took the quiz! Module 04.06! Have a good day!

poizon [28]3 years ago
4 0

The answer is D

I took the test and I got this answer, it was correct :)

I don’t care if I get brainliest I just want to help

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5) 3Na2SO4
xenn [34]

Answer:

3Na2SO4

Explanation:

3Na2SO4

# of molecules: 3 moles of Na2SO4 or 3 × 6.22 × 10^23 molecules.

# of elements: 3 elements l

Name of element: = Sodium, S = Sulphur, O = Oxygen

# of atoms: Na = 6 atoms, S= 3, O= 12

Total # of atoms: 21

The #3 is a Coefficient.

Please mark branliest if you are satisfied. Thanking in anticipation.

7 0
2 years ago
Which of these changes would be classified as producing a chemical change a. freezing water b. mixing salt and water to make a s
trasher [3.6K]

Answer:

Option B , Option C and Option D

4 0
3 years ago
As an object falls freely near the earths surface , the loss in gravitational potential energy of the object is equal to its wha
Nitella [24]
Increase in kinetic energy as well as energy loss to the surroundings in the form of heat ( negligible)
4 0
3 years ago
Read 2 more answers
2.<br> Why does<br> a chemical equation<br> need to<br> be balanced?
arlik [135]

<em>Answer:</em>

<em>Chemical equations must be balanced to satisfy the law of conservation of matter, that states that matter cannot be produced or destroyed in a closed system. The law of conservation of mass governs the balancing of a chemical equation.</em>

Explanation:

7 0
3 years ago
What is the ph of a peach with a [ –oh] = 3.2 × 10 –11 m?
iogann1982 [59]
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pH=-log(H+) = 3.505

Just round it down and your answer = 3.5
3 0
2 years ago
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