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Savatey [412]
3 years ago
12

Which element is least likely to form chemical bonds?

Chemistry
2 answers:
pashok25 [27]3 years ago
6 0

Answer:b: helium

Explanation: idk i guessed and got it right BAHAHA

Alex73 [517]3 years ago
6 0

Answer:

<em>B</em>

Explanation:

i just did the test

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Debora [2.8K]

Answer:

EWQEQW

Explanation:

WEQWE

3 0
2 years ago
Which has the highest boiling point .33 m NH3 or .10 m Na2SO4​
Aleksandr-060686 [28]

Answer:

0.33 mol/kg NH₃

Explanation:

Data:

     b(NH₃) = 0.33 mol/kg

b(Na₂SO₄) = 0.10 mol/ kg

Calculations:

The formula for the boiling point elevation ΔTb is

\Delta T_{b} = iK_{b}b

i is the van’t Hoff factor — the number of moles of particles you get from a solute.

(a) For NH₃,

The ammonia is a weak electrolyte, so it exists almost entirely as molecules in solution.  

1 mol NH₃ ⟶  1 mol particles

i ≈ 1, and ib = 1 × 0.33 = 0.33 mol particles per kilogram of water

(b) For Na₂SO₄,

Na₂SO₄(aq) ⟶ 2Na⁺(aq) + 2SO₄²⁻(aq)

1 mol Na₂SO₄ ⟶ 3 mol particles

i = 1 and ib = 3 × 0.10 = 0.30 mol particles per kilogram of water

The NH₃ has more moles of particles, so it has the higher boiling point.

5 0
3 years ago
Humans are not the only animals that pollute the air.
pychu [463]

Answer:

TRUE

Explanation:

Humans and many animals are responsible for air pollution. Even natural processess such as excreting feces results in release of methane, CO2 etc which contribute to air pollution

7 0
3 years ago
Read 2 more answers
43:45
MissTica

Explanation:

hydrogen + oxygen---> water

8 0
3 years ago
Match the examples with the correct term.
Marizza181 [45]
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4 0
3 years ago
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