2 years ago

REALLY NEED HELP. TAKING A TIMED TEST. 15 POINTS

Chemistry

1 answer:

zimovet [89]2 years ago

7 0

The F atom . Oxygen has a -2 charge and fluorine has a +1 charge

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How many orbitals are in 2s sublevel?

kykrilka [37]

4 orbitals. P sublevel has 3 orbitals. 2nd level has 4 orbitals. An f sublevel has 7 orbitals.

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2 years ago

What is the mass in grams of a single formula unit of silver chloride, AgCI? A) 4.21 x 1021 g B) 8.61 x 10258 C) 1.66 x 10-248 D

bekas [8.4K]

Answer: D) $2.38*10^-^2^2$ g

Explanation: The question asks to convert formula unit to grams. It is a unit conversion problem.

1 mole equals to Avogadro number of formula units. So, to convert the given number of formula units to moles, we need to divide by the Avogadro number. After this, we do moles to grams conversion and for this the moles are multiplied by the molar mass of the compound. Molar mass of AgCl is 143.32 gram per mol.

$1FormulaUnitAgCl(\frac{1mol}{6.022*10^2^3formulaUnits})(\frac{143.32g}{1mol})$

= $2.38*10^-^2^2$ g

So, the correct option is D) $2.38*10^-^2^2$ g

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3 years ago

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Climatology is a subspecialty of

rodikova [14]

Climatology is a subspecialty of a Climate and for how the climate changes. This is averaged out from over a set of a period of time.

I hope this helps! ;D

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3 years ago

The wind causes this wind turbine to spin, creating electricity. The moving blades are evidence of A) solar power. B) work being

timama [110]

They answer is (C) Potential Energy

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2 years ago

When 10g of calcium carbonate is heated,4.4g of carbon dioxide escape out. The amount of residue left is:

Maslowich

The dissociation of calcium carbonate, CaCO3, to simpler compounds can be expressed as,
CaCO3 --> CaO + CO2
The precipitate is CaO and its amount is calculated through the difference which will give us the answer of 5.6 g.

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3 years ago