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morpeh [17]
3 years ago
13

What are things that amorphous and crystalline have in common?

Chemistry
1 answer:
Juliette [100K]3 years ago
5 0
Six brick land llwnswel
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A physical change is when the atoms combine to create a new product.
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False. A physical change does not create a new substance.
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Acetic acid, CH3CO2HCH3CO2H, is the main organic constituent of vinegar. Draw an electron-dot structure for acetic acid. (The tw
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Answer: acetic acid structure

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In the lewis structure we have 24 valence electrons

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Which of the following statements is true?
Lera25 [3.4K]

The  statement  which is true is

metals  lose  electrons  to become cations

<u><em>Explanation</em></u>

  • metals tends  to loss electrons to attain  noble gas  electrons  configuration.
  • When metal loses electrons they form a  positive charged ions.
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3 years ago
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When the isotonic saline solution described in part A is connected to an unknown solution via a semipermeable membrane, the unkn
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B. The unknown solution had the lower concentration.

Explanation:

Osmosis is a phenomenon in which the molecules of the solvent has a tendency to move through a membrane which is semipermeable from lower concentrated side to the higher concentration side, so that the concentrations on both sides of the membrane must be equal.

So the unknown solution may have lesser concentration than the isotonic solution so that molecules of that solution move from less concentrated side to the more concentrated side, so its level drops.

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Which type of allergy test, also called a subcutaneous test, introduces dilute solutions of allergens into the skin of the inner
alexgriva [62]

Answer:

The type of allergy test is scratch test.

Explanation:

In a scratch test also called a skin pri c k test or puncture test, an allergy provoking substance placed on the skin is gradually scratched  into the skin surface with the aid of a needle or lancet so as to detect bodily reactions to allergens. Some of the types allergens whose reactions are generally tested for include pollen, dust mites, molds and foods.

The scratch test takes about 5 to 10 minutes and it could cause slight pain and the may  result in itching feeling at the location where the allergen was introduced.

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