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Rzqust [24]
3 years ago
12

What is the chemical formula of iron (II) sulfide would be: (EO S = +2 and EO Fe = +2). please

Chemistry
1 answer:
Anni [7]3 years ago
7 0

Answer:

FeS

Explanation:

The reason why their is no subscripts is because as put in the question, the charges are equivalent. As you can see, +2 and -2 equal each other out.

Note: S has a charge of -2, not +2. (Look at oxidation rules.)

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How many moles of a gas would occupy 11.4 L at 273K and 2.00 atm?
bagirrra123 [75]

Answer:

1.02mol

Explanation:

Using the general gas equation below;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information provided in this question,

P = 2.0 atm

V = 11.4L

T = 273K

n = ?

Using PV = nRT

n = PV/RT

n = 2 × 11.4/ 0.0821 × 273

n = 22.8/22.41

n = 1.017

n = 1.02mol

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3 years ago
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6
kumpel [21]

Answer:

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8 0
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How many moles is 1g of Carbon?
7nadin3 [17]

Answer:

The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. 12.00 g C-12 = 1 mol C-12 atoms = 6.022 × 1023 atoms • The number of particles in 1 mole is called Avogadro's Number (6.0221421 x 1023).

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