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Goryan [66]
3 years ago
15

19. Who was the first female astronomer

Chemistry
1 answer:
Nataliya [291]3 years ago
6 0

Answer: A.En Hedu'Anna

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LiRa [457]

Answer:

No estoy segura

Explanation:

8 0
3 years ago
How many atoms of oxygen (O) are in one formula unit of Mg(NO3)2?
miv72 [106K]
We may use the molecular formula of the compound to determine the number of oxygen atoms in one formula unit. The formula unit is:
Mg(NO₃)₂
Here, we can see that there are two nitrate ions in each mole, and each mole of nitrate ion contains three oxygen atoms. Thus, there are 6 oxygen atoms in each formula unit of magnesium nitrate.
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3 years ago
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What test was used to identify hydrogen gas? Write a balanced equation to represent the test?
const2013 [10]
Burning splint test
2H2 (g) + O2 (g) -> 2H20 (g) + heat
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2 years ago
Consider the reaction that occurs when copper is added to nitric acid. Upper C u (s) plus 4 upper H upper N upper O subscript 3
Nitella [24]

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Cu

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In the given reaction of the addition of copper to nitric acid,

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Cu or copper would be characterized as the reducing agent in this reaction. It is the chemical substance that is losing electrons and being oxidized due to this reduction/loss in this redox reaction as it is the metal that loses electrons by reacting with the non-metals.

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What is atomic?................................................
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oh I'm here thanks for your points

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3 years ago
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