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Dvinal [7]
3 years ago
7

12.00 grams of magnesium sulfate hydrate decompose, when heated, to produce 5.86 grams of

Chemistry
1 answer:
Mariulka [41]3 years ago
4 0
With the 12.00 grams of magnesium
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What is ionisation enthalpy?​
olga nikolaevna [1]

Answer:

In physics and chemistry, ionization energy or ionisation energy is the minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule.

Explanation:

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2 years ago
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What type of elements are found in the polyatomic ions? (Metal/nonmetal)
pickupchik [31]

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it would be considered a metal

Explanation:

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3 years ago
Please write down the definitions of elements, compounds, mixtures, homogenous mixtures, and heterogenous mixtures.
MA_775_DIABLO [31]

A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.

A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture.
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3 years ago
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What is the total pressure in units of kPa in a 7.85 L container that contains 4.45 moles of N2 and 2.45 moles of O2 at a temper
IgorC [24]

Answer:

Total pressure = 22.15 atm

Explanation:

Given data:

Total pressure = ?

Volume of container = 7.85 L

Number of moles of N₂ = 4.45 mol

Number of moles of O₂ = 2.45 mol

Temperature = 307 K

Solution:

Pressure of N₂:

PV = nRT

P = nRT/V

P = 4.45 mol ×0.0821 atm.L/mol.K ×307K / 7.85L

P = 112.16 atm.L/7.85 L

P = 14.28 atm

Pressure of O₂:

PV = nRT

P = nRT/V

P = 2.45 mol ×0.0821 atm.L/mol.K ×307K / 7.85L

P = 61.75 atm.L/7.85 L

P = 7.87 atm

Total pressure = P(N₂) + P(O₂)

Total pressure = P( 14.28 atm)  +  P( 7.87 atm)

Total pressure = 22.15 atm

6 0
3 years ago
8. How does the arctic fox survive the harsh winters in the tundra?
Ket [755]

Answer:

the answer is d

Explanation:

It migrates to coastal areas during the winter months to catch fish.

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