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scoundrel [369]
3 years ago
15

Pls help The white light of the sun is a mixture of all the colors.

Chemistry
2 answers:
Anettt [7]3 years ago
7 0

false the black light is

ANTONII [103]3 years ago
7 0
White light is a mixture of all of the colours. ROYGBIV=white light
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Calculate the number of oxygen atoms and its mass in 50g of CaCo3<br>​
xz_007 [3.2K]

The number of oxygen atoms = 3

Mass = 24 g

<h3>Further explanation</h3>

The formula of a compound shows the composition of the constituent elements

CaCO₃ is composed of 3 types of elements, namely Ca, C and O

The amounts of each of these elements in the compound CaCO₃:

  • Ca = 1
  • C = 1
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So the number of oxygen atoms = 3

mass of Oxygen :

\tt mass~O=\dfrac{3\times Ar~O}{MW~CaCO_3}\times mass~CaCO_3\\\\mass~O=\dfrac{3\times 16}{100}\times 50=24~g

5 0
2 years ago
Complete the reaction
GarryVolchara [31]
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6 0
3 years ago
Compare and contrast Aufbau principle and the Pauli exclusion principle.
lapo4ka [179]

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3 years ago
Which of these reactions can be classified as double replacement reactions?
Kryger [21]
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4 0
3 years ago
What is the formula for Heptaphosphorous pentoxide?
slega [8]

Answer:

P7F8

Explanation:

correct formula isP7F8

7 0
3 years ago
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