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Triss [41]
3 years ago
8

QUESTION IS IN IMAGE

Chemistry
1 answer:
Shalnov [3]3 years ago
6 0

Answer:

i dont know

Explanation:

im doing it 4 the points

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What is metal ? Where does it coke from ?
aleksandrvk [35]

Answer:

  • Most pure metals, like aluminium, silver and copper, come from the Earth's crust.
  • They are found in ores – solid materials called minerals, usually occurring in rock, from which the pure metal has to be extracted.
  • The properties of pure metals can be improved by mixing them with other metals to make alloys.

5 0
3 years ago
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Im sorry if its difficult to read
anzhelika [568]

Answer:

A ball is thrown straight up from a rooftop 320 feet high. The formula below describes the ball's height above the ground, h, in feet, t seconds after it was thrown. The ball misses the rooftop on its way down and eventually strikes the ground. How long will it take for the ball to hit the ground? Use this information to provide tick marks with appropriate numbers along the horizontal axis in the figure shown.

h=-16t^2+16t+320

6 0
3 years ago
What change shows a tenfold increase in concentration of h+ ions?
sasho [114]
Your answer would be: pH2 --> pH1

goodluck, :-)
5 0
3 years ago
what layers of protection can be used tot detect and respond to abnormal reactions or process conditions
alex41 [277]

In the body, the main protective layer is known as the epithelium, this can be found in the skin as well as other organs such as the lungs.

The body is often exposed to external factors that can damage it; due to this, throughout evolution, most animals and multicellular organisms have developed protective mechanisms.

In the case of humans and other animals, the protective layer is known as the epithelium, which is composed of epithelial cells. This protective layer can be found internally and externally.

External layer: This is the first protective layer, commonly known as skin, this layer protects the inner organs from extreme temperatures, changes in pressure, etc.

Internal layer: Organs such as the lungs or the ones in the gastrointestinal system are all covered by a thin epithelial layer that helps each organ to be protected.

Learn more about skin in: brainly.com/question/12057617

5 0
3 years ago
What’s is the mass in grams of 5.90 mol C8H18?
DerKrebs [107]

Mass = 5.90 x 114 = 672.6g.

This can be rounded to <em>673g</em>

<em>C = 12 grams x 8 = 96 grams  </em>

<em>H = 1 gram x 18 = 18 grams  </em>

<em>Total = 96 + 18 = 114 grams in one mole.  </em>

<u>If you have 5.9 moles, multiply this by the weight of one mole (114 grams) = 672.6 rounded to 673 grams in 5.9 moles. </u>

4 0
3 years ago
Read 2 more answers
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