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Norma-Jean [14]
3 years ago
9

11.

Chemistry
1 answer:
alisha [4.7K]3 years ago
6 0
11. Atomic number

12. in the nucleus with neutrons
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The large number before a molecule in a chemical formula is called a _______________.
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The answer is coefficient
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If element A is in Group 13 and element B is in Group 17, which ions will be formed when A and B react together?
Kobotan [32]

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A3+ and B-

Explanation:

Elements in group 13 have outermost electron configuration, ns2np1 hence they form trivalent positive ions.

Elements in group 17 have outermost electron configuration ns2np5 hence they form univalent negative ions.

This implies that, if element A is in Group 13 and element B is in Group 17, the ions formed are A3+ and B-.

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What are some observable indications that a chemical reaction has occurred?
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The whole cloves are broken up to help release the eugenol during distillation.
GREYUIT [131]

The statement is False.

No, whole cloves are not broken up to help release the eugenol during distillation.

Steam distillation:

  • Live steam is used in the co-distillation technique of steam distillation to separate mixture components.
  • It works well to extract essential oil constituents with high boiling points, such as those with boiling points of 200°C. However, the oil vapors themselves are warmer—around 100°C—helping to maintain the compounds' structural integrity.
  • It enables distillation to be carried out at lower temperatures than the boiling points of the constituent parts.
  • The high-boiling essential oils are vaporized by steam, and after passing through a cooling system, the hot vapors that were formed from them condense back into a liquid along with water.
  • A two-phase distillate, consisting of a water layer and an oil layer, is created because the oils are immiscible in water.

Learn more about the Steam distillation with the help of the given link:

brainly.com/question/14864901

#SPJ4

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Balance the following reaction: NaOH + HCl → NaCl + H2O Enter your answer in
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<span>NaOH + HCl = NaCl + H2O</span>
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