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bezimeni [28]
3 years ago
8

Are solar and lunar eclipses processed by the movements of the Earth and moon?

Chemistry
2 answers:
Inga [223]3 years ago
7 0

Explanation:

As the Earth rotates on its axis and revolves around the Sun, several different effects are produced. When the new moon comes between the Earth and the Sun along the ecliptic, a solar eclipse is produced. When the Earth comes between the full moon and the Sun along the ecliptic, a lunar eclipse occurs.

AlexFokin [52]3 years ago
4 0
Short answer : yes!
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2. Calculate the mass of 3.47x1023 gold atoms.
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3.47 x 10^{23} atoms of gold have mass of 113.44 grams.

Explanation:

Data given:

number of atoms of gold = 3.47 x 10^{23}

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atomic mass of gold =196.96 grams/mole

Avagadro's number = 6.022 X 10^{23}

from the relation,

1 mole of element contains 6.022 x 10^{23} atoms.

so no of moles of gold given = \frac{3.47 X 10^{23}  }{6.022 X 10^{23} }

0.57 moles of gold.

from the relation:

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Which of the following reasons best explains why water isn
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the wax is a nonpolar substance that will not mix with polar water

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Density (D) is defined as the amount or mass (m) of a substance present in a unit volume(V). It can be expressed mathematically as:

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Units: g/cm3

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m2, V2 and D2 = mass, volume and density respectively of ball B

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D1/D2 = (m1/V1)* (V2/m2) = (2m2/V2)*(V2/m2) = 2

Thus, density of ball A is twice that of B.

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b)

If m1, V1 and D1 = mass, volume  and density respectively of ball C

m2, V2 and D2 = mass, volume and density respectively of ball D

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Therefore,

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c)

If m1, V1 and D1 = mass, volume  and density respectively of ball P

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D1/D2 = (m1/V1)* (V2/m2) = (m2/2V2)*(V2/m2) = 1/2

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If m1, V1 and D1 = mass, volume  and density respectively of ball X

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Thus, D1 = 1/4(D2)

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