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Jobisdone [24]
3 years ago
14

What is a Metonic cycle? How does this influence when we see full moons?

Chemistry
1 answer:
vivado [14]3 years ago
6 0

Answer:    A tropical year is longer than 12 lunar months and shorter than 13 of them. The arithmetical equation

12x12 + 7x13 = 235

allows it to be seen that a combination of 12 'shorter' (12 months) years and 7 'longer' (13 months) years will be equal to 19=12+7 solar years.

Explanation:

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If 26.2 grams of a pure compound contain 8.77 × 1022 molecules, what is the molecular weight of this compound? Answer in units o
Nataly [62]

Answer:

Mw = 179.845 g/mol

Explanation:

  • Mw [=] g/mol

∴ w = 26.2 g

∴ 1 mol = 6.02 E23 molecules.......Avogadro's number

⇒N° moles = 8.77 E22 molecules * ( mol / 6.02 E23 molecules ) = 0.146 mol

⇒ Mw = 26.2 g / 0.146 mol = 179.845 g/mol

3 0
3 years ago
How are elements arranged in a periodic table
andre [41]
Periodic table is arranged according to atomic size and other properties.
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puteri [66]

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Ethan makes the table below to record his observations when mixing baking soda and vinegar in a beaker. Ethan claims that a chem
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Answer: a

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Many bubbles formed after mixing.

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All organic compound soluble in WATEe and conduct electrically ​
Delvig [45]

No

Explanation:

Not all organic substances are soluble in water and will not conduct electricity. Only polar organic compounds are soluble in water and will conduct electricity.

  • The general rule of solubility is that like dissolves likes.
  • Polar compounds will only dissolve other polar compounds too. Water is a polar solvent.
  • Non-polar compounds will only dissolve in non-polar compounds too.
  • Since water is a polar organic compound, only polar organic compounds will dissolve in it.
  • Not all organic compounds are polar.
  • When a compound dissolves in water, it produces ions that makes it able to conduct electricity.
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learn more:

Inorganic compounds brainly.com/question/5047702

#learnwithBrainly

4 0
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