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Maslowich
3 years ago
5

Which molecule has five atoms per molecule?

Chemistry
1 answer:
MrMuchimi3 years ago
4 0

Answer:

CH4, methane

Explanation:

CH4 has 1 C (carbon) and 4 H (hydrogen) atoms, for a total of 5 atoms in one molecule.

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Explanation:

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Because ionic compounds' strong bonds form network structures, which have a stronger attraction than the covalent compounds which are molecules.
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If you were asked to convert 25 kg to the unit mg, which of the following would be the first fraction used in the conversion?
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Hi Soccerbrandon,

So in order to do unit conversion in this situation, it is best to first convert kg into g and then g into mg. The conversion rates are easy to remember individually for both of them.

There are 1000 g in 1 kg.
There are 1000 mg in 1 g.

So lets use 25 kg as an example:
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What mass of aluminum sulfate is required to precipitate all of the Ba?? out of 45.0 mL of 0.548 M barium nitrate solution? 3 Ba
Verizon [17]

Answer:

2.82 g

Explanation:

Step 1: Write the balanced precipitation reaction

3 Ba(NO₃)₂ (aq) + Al₂(SO₄)₃ (aq) ⇒ 3 BaSO₄(s) + 2 Al(NO₃)₃(aq)

Step 2: Calculate the reacting moles of Ba(NO₃)₂

45.0 mL (0.0450 L) of 0.548 M Ba(NO₃)₂ react.

0.0450 L × 0.548 mol/L = 0.0247 mol

Step 3: Calculate the moles of Al₂(SO₄)₃ that react with 0.0247 moles of Ba(NO₃)₂

The molar ratio of Ba(NO₃)₂ to Al₂(SO₄)₃ is 3:1. The reacting moles of Al₂(SO₄)₃ are 1/3 × 0.0247 mol = 8.23 × 10⁻³ mol

Step 4: Calculate the mass corresponding to 8.23 × 10⁻³ moles of Al₂(SO₄)₃

The molar mass of Al₂(SO₄)₃ is 342.2 g/mol.

8.23 × 10⁻³ mol × 342.2 g/mol = 2.82 g

5 0
3 years ago
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