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Arte-miy333 [17]
3 years ago
7

What is the chemical name of the compound represented by the formula Ni2O3? Use the list of polyatomic ions and the periodic tab

le to help you answer.
Chemistry
2 answers:
bearhunter [10]3 years ago
5 0
The chemical name is nickel (III) oxide .
LuckyWell [14K]3 years ago
4 0

Answer : The chemical name of the compound Ni_2O_3 is, nickel(III)oxide.

Explanation :

The rules for naming the chemical name of the compound :

  • First element in the formula is named first and keep its element name.
  • Gets a prefix if there is a subscript on it.
  • Written the oxidation state by the us of roman numeral.
  • Second element is named second.
  • Use the root of the element name plus suffix (-ide).
  • Always use a prefix on the second element.

In the given compound, the nickel is the cation and first element in the formula and the oxidation state of nickel is, (+3). The second element is oxygen which is named as oxide.

Thus, the chemical name of the compound Ni_2O_3 is, nickel(III)oxide.

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What is the molar mass of a gas if 0.102 g of the gas occupies 0.070 L at STP? a. 32.6g / mol b. 28.2 g/mol c. 40.0g / mol d. 47
alexgriva [62]

Answer:

A. 32.6 g/mol

Explanation:

First convert the volume of gas to moles using the ratio 1 mol / 22.4 L at STP.

0.070 L • (1 mol / 22.4 L) = 0.00313 mol

Now divide the grams of gas by the moles of gas:

0.102 g / 0.00313 mol = 32.6 g/mol

8 0
3 years ago
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Temka [501]

Answer:

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2 years ago
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Answer:

See explanation

Explanation:

If we look at the electron configuration closely, we will discover that the element must have had a ground state electron configuration of 2,4.

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However, when the atom is excited, one electron from this shell may move to the third shell to give the excited state configuration 2-3-1 as shown in the question.

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Explanation: 30 min

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