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Bumek [7]
3 years ago
6

Which of the following molecules is polar? CH4, Ch3OH, CO2

Chemistry
1 answer:
uranmaximum [27]3 years ago
5 0
Hello! Ch3OH will be your polar molecule here. Hope it helped.
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A car engine produces 604 kJ of mechanical energy from fuel capable of producing 2416 kJ of energy. The efficiency of the engine
Anna71 [15]
I think it’s 40% but I’m not sure
6 0
3 years ago
Calculate the ph of the solution resulting by mixing 20.0 ml of 0.15 m hcl with 20.0 ml of 0.10 m koh
Aliun [14]

Answer:

1.60.

Explanation:

  • The no. of millimoles of HCl = MV = (0.15 M)(20.0 mL) = 3.0 mmol.
  • The no. of millimoles of KOH = MV = (0.10 M)(20.0 mL) = 2.0 mmol.

<em>Since the no. of millimoles of HCl is larger than that of KOH. The solution is acidic.</em>

<em></em>

∴ M of remaining HCl [H⁺] remaining = (NV)HCl - (NV)KOH/V total = (3.0 mmol) - (2.0 mmol) / (40.0 mL) = 0.025 M.

∵ pH = - log[H⁺]

<em>∴ pH = - log[H⁺] </em>= - log(0.025) = <em>1.602 ≅ 1.60.</em>

5 0
3 years ago
Blank + BaCl2 = BaSO4 + 2NaCl
crimeas [40]

The blank is filled by Na₂SO₄, and the complete equation for the double displacement reaction is:

Na₂SO₄ + BaCl₂ = BaSO₄ + 2 NaCl

<h3>What is a double displacement reaction?</h3>

It is a reaction in which both reactants exchange anions and cations.

Let's consider the following incomplete double displacement reaction.

_____ + BaCl₂ = BaSO₄ + 2 NaCl

If we compare the left and right sides, we can see that the missing ions in the left side are Na⁺ and SO₄²⁻. Thus, the missing compound is Na₂SO₄. The complete equation is:

Na₂SO₄ + BaCl₂ = BaSO₄ + 2 NaCl

Learn more about double displacement here: brainly.com/question/23918356

#SPJ1

5 0
2 years ago
baseball fields have dirt in the infield and grass in the outfield. the is more likely to erode because
eimsori [14]
Grass is more likely to erode.
3 0
3 years ago
In order to make 1 bike it requires 1 horn, 2 tires, and 1 chain. What would be the coefficients for the horn, tire, and chain,
cestrela7 [59]
Bike is B
Horn is H
Tire is T
Chain is C

one bike would be B = H + 2T + C
you would have to multiply both sides by 4 to make 4 bikes, so then it would be
4B = 4H + 8T + 4C
8 0
3 years ago
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