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Vinil7 [7]
3 years ago
15

The Aurora Borealis or northern light occur when solar flares react with the atmosphere near the north poles. The Aurora give of

f colred light because electricity is flowing. Which state of matter must the air be in for the Aurora to occur? A) gas B) liquid C) plasma D) solid
Chemistry
2 answers:
Brrunno [24]3 years ago
8 0

Answer:

C) plasma

Explanation:

Plasma is the state where electrons are stripped allow these gases to conduct electricity.

scoray [572]3 years ago
4 0
Answer: <span>C) plasma
</span><span>
Natural phenomena characterized by colored lights in the sky, is caused by the interaction of charged particles of energy from the solar wind with the magnetic layer of the earth so we have turbulence and multicolored plasma clouds known as auroras arise.</span>
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The elements C and Se have the same electronegativity value, 2.55. Which of the following claims about the compound that forms f
Rom4ik [11]

Answer:

B

Explanation:

Having the same electronegativity means that the both elements will form a nonpolar bond. The shared electrons of the bind will be found equidistant from the nucleus of the two atoms because none has an unusual ability to attract the electrons of a bond towards itself.

8 0
3 years ago
If objects at the same distance suddenly decreased in mass the gravitational force between them would
Flauer [41]

Answer:

Gravitational force is also decreases.

Explanation:

Gravitational force is directly proportional to the mass of an object and inversely properly to the distance between their centres. Directly means if one increases the other automatically increases or if one decreases, the other also decreases. There is a direct relationship between mass and gravitational force so if mass of the bodies decrease, the gravitational force is also decreases.

7 0
3 years ago
HELP ASAP !!!!!
Anna35 [415]

Answer:

Explanation:

Take a random sample of nuts from the jar.  Let's take two handfuls, after shaking the jar and mixing the nuts thoroughly.  Separate the nuts into almonds and cashews.  Count each pile, then do the following calculation (these numbers are random, for example only).

                <u> Count</u>   <u>Percentage %</u>

Almonds       38        (38)/(87)x100

Cashews      <u> 49</u>         49/87x100

                      87          87/87 = 100%

Ratio of Almonds to Cashews:  <u>38/49</u>

3 0
2 years ago
Drops of a clear liquid are added to a red liquid. As the drops are added, the red liquid becomes orange, then yellow
lakkis [162]
This must be a universal indicator, the pH is going down everytime you add more :)
3 0
3 years ago
Read 2 more answers
You're at the zoo and have a big red 1.80 L helium balloon. The barometric pressure today is 785 mmHg. Then you hear the roar of
fomenos

Answer: The volume of the balloon up there is 6.192 L.

Explanation:

Given: V_{1} = 1.80 L,    P_{1} = 785 mm Hg (mm Hg = 0.00131579) = 1.032 atm

P_{2} = 0.300 atm,       V_{2} = ?

Formula used to calculate volume is as follows.

P_{1}V_{1} = P_{2}V_{2}

Substitute the value into above formula as follows.

P_{1}V_{1} = P_{2}V_{2}\\1.032 atm \times 1.80 L = 0.300 atm \times V_{2}\\V_{2} = 6.192 L

Thus, we can conclude that the volume of the balloon up there is 6.192 L.

8 0
3 years ago
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