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grandymaker [24]
3 years ago
8

Which of the following did you include?

Chemistry
1 answer:
natulia [17]3 years ago
5 0

Answer:

The formula of ammonium fluoride is NH4F.

Explanation:

1 The atoms in each ion are bonded together covalently to form a single unit.

Wrong!

⇒ The atoms in an ion compound are linked together by an ionic bond.

2 The charge is distributed over the entire ion.

Wrong!

Ions have taken in or given up electrons. This happens in the atomic shell.

3 The formula of ammonium fluoride is NH4F.

Right!

4 The formula of potassium sulfate is K2SO

Wrong!

The formula for potassium sulfate is K2SO4.

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Lynna [10]

Answer:

E=2052.8 kJ

Explanation:

The energy absorbed by the water is the energy it requires to evaporate. So:

Heat of .vap= 40.65 kJ/mol

The moles of water:

n_w=m_w *\frac{1000g}{2.2lbs}*\frac{1}{M}

M is the water molecular weight

n_w=2 lbs *\frac{1000g}{2.2lbs}*\frac{1}{18g/mol}

n_w=50.5mol

The energy absorbed:

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E=2052.8 kJ

3 0
3 years ago
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larisa86 [58]

Answer:

Explanation:

A ) Solar Radiation

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3 years ago
A weather balloon is filled with helium that occupies a volume of 5.00 × 10^4 L at 0.995 atm and 32.0°C. After it is released, i
DaniilM [7]

Answer:

The new volume is 5.913*10^4 L

Explanation:

Step 1: Write out the formula to be used:

Using general gas equation;

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Step 2: write out the values given and convert to standard unit's where necessary

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V1 = 5*10^4 L

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Step 3: Equate your values and do the calculation:

V2 = 0.995 * 5*10^4 * 261 / 0.720 * 305

V2 = 1298.475 * 10^4 / 219.6

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3 years ago
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