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Dafna1 [17]
3 years ago
11

Fill in the gaps. Will give BRAINLIEST and 5 starss!!!

Chemistry
1 answer:
Stells [14]3 years ago
7 0
First gap is BY USING MAGNETS
2nd is ELECTROLYSIS
3rd is EVAPORATION
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A volcano erupts and lava flows for 10 miles before slowly cooling into solid rock. Is this
bulgar [2K]

Answer:

My Answer:

Explanation:

Exothermic because heat energy exits as the lava cools then forms a solid.

3 0
2 years ago
What is the mass in grams of 16.3 mol of the element<br> nickel, Ni?
dangina [55]

Answer:

The mass of 16.3 moles of nickel is 956. 647 g.

Explanation:

Given data:

moles of nickel = 16.3 mol

molar mass of nickel = 58.69 g/mol

mass in gram = ?

solution:

Formula:

number of moles = mass / molar mass

mass = number of moles × molar mass

mass = 16.3 mol × 58.69 g/mol

mass= 956. 647 g

4 0
3 years ago
A student suggests that Earth's climate is changing, partly because of human activities such as burning fossil fuels (i.e. coal,
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B. The graphs
Hope this helped you
4 0
2 years ago
Using the phase diagram for CO2, what phase is carbon dioxide in at -60C and 1 atm pressure? A. Solid B. Gas C. At the melting p
ANTONII [103]

Answer:

B. Gas.

Explanation:

  • Kindly, see the attached image of CO₂ phase diagram.
  • Extrapolating the T from - 60.0°C and P from 1.0 atm, you will find that CO₂ is in the gas phase.

  • So, the right choice is: B. Gas.

7 0
3 years ago
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Fill in the blanks: Most metals have
victus00 [196]

Answer:

Most metals have <u>luster</u> which means they <u>reflect</u> light

Explanation:

When light, which is made up of energetic photons, comes in contact with the surface of a metal, it is absorbed due to the corresponding energy gaps present between the metal orbital. The absorbed photons results in the raising of the energy levels of electrons within an atom of the metal which later drop back to a lower energy level and re-emit the photons which can now be observed as the metallic luster.

4 0
3 years ago
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