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vova2212 [387]
3 years ago
6

The outer planets are very large making up 99 percent of the mass of the bodies orbiting the Sun.

Chemistry
2 answers:
Advocard [28]3 years ago
7 0
False I believe .......
NeX [460]3 years ago
3 0

Actually, the outer planets do make up roughly 99 percent of the mass of the bodies orbiting the Sun. So it would be True.

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¿soy guapo?<br> si dices que si te doy una galletita
tankabanditka [31]

Answer:

Hindi ko po ma gets sinasabi nyu pwedeng pakiayus

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3 years ago
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How do dominant and recessive traits impact genotype and phenotype?
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The phenotype depends on the dominant allele. Only people with aa genotype will express recessive traits. Hope this helped!
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3 years ago
When the temperature of the air is 25°C, the velocity of a sound wave traveling through the air is approximately
Vitek1552 [10]

Answer ; The correct answer is : 346 m/s .

Sound is a type of longitudinal wave , which is produced when a matter compress or refracts .

Speed of sounds depends on factors like medium , density , temperature etc .

Effect of Temperature on speed of sounds :

When the temperature increases , molecules gains energy and they starts vibrating and with higher temperature vibration becomes fast . So the waves of sounds can travel faster due to faster vibrations . Hence , speed of sounds is directly proportional to the temperature or speed of sounds increases with increase in temperature .

The speed of sounds at 0⁰C is 331 \frac{m}{s}

The relation between speed of sound and temperature is given as :

V = 331 \frac{m}{s}  + ( 0.6 \frac{m}{s- ^0C} * T  )

Given : Temperature = 25 ⁰ C

Plugging values in formula =>

V = 331 \frac{m}{s} + (0.6 \frac{m}{s-^0C}  * 25^0C)

V = 331 \frac{m}{s} + 15 \frac{m}{s}

V =  346 \frac{m}{s}

7 0
3 years ago
You can practice converting between the mass of a solution and mass of solute when the mass percent concentration of a solution
LUCKY_DIMON [66]

<u>Answer:</u> The mass of solution having 768 mg of KCN is 426.66 grams.

<u>Explanation:</u>

We are given:

0.180 mass % of KCN solution.

0.180 %(m/m) KCN solution means that 0.180 grams of KCN is present in 100 gram of solution.

To calculate the mass of solution having 768 mg of KCN or 0.786 g of KCN   (Conversion factor:  1 g = 1000 mg)

Using unitary method:

If 0.180 grams of KCN is present in 100 g of solution.

So, 0.768 grams of KCN will be present in = \frac{100g}{0.180g}\times 0.768=426.66g of solution.

Hence, the mass of solution having 768 mg of KCN is 426.66 grams.

8 0
3 years ago
As you move from left to right across a period, what happens to the atomic radii?
GrogVix [38]

Answer:

They decrease, because of the stronger effective nuclear charge.

Explanation:

  • Atomic radii decreases from left to right across a period.
  • This is due to the increase in the no. of protons and electrons through the period.
  • One proton has a greater effect than one electron.
  • So, electrons are attracted towards the nucleus and resulting in a smaller atomic radii.

<em>Thus, the right choice is: They decrease, because of the stronger effective nuclear charge.</em>

<em></em>

3 0
3 years ago
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