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Zanzabum
3 years ago
8

How many molecules are in 8.2 moles of CO3

Chemistry
1 answer:
Anarel [89]3 years ago
3 0
I believe the answer is 50.5 molecules 
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Answer: with what?

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Calculate the energy needed to raise the temperature of 42 grams of water from 25.0 degrees Celsius to 48 degrees Celsius. The s
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option B is the answer.

B. 8266 calories

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Families 1-2 and 13-18 are called the...
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C. representative elements.

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Families 1 - 2 and 13 - 18 are called representative elements or often times, main group elements.

  • Elements on the periodic table belongs to four blocks which are s, p, d and f blocks.
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Two elements in the same period have the same number of _____ _____ in their electron clouds.
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outer electrons

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What is the correct sequence of coefficients when this equation is balanced? ___cs2(l) + ___o2(g) → ___co2(g) + ___so2(g)?
iris [78.8K]

Answer: the sequence is 1, 3, 1, 2.


Explanation:


1) Given equation: CS₂(l) + O₂(g) → CO₂(g) + SO₂(g)


2) To balance:


i) initially C is balanced: 1 atom in the left side, and 1 atom in the right sides


ii) Add coefficient 2 in front of SO₂ to have 2 atoms in each side.


That leads to: CS₂(l) + O₂(g) → CO₂(g) + 2SO₂(g)


iii) Count the O atoms; there are 2 atoms in the left, and 6 atoms in the right side. So, add a coefficient 3 in front of O₂ (in the left) and you get:


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4) You can verigy that now the equation is balanced:


C: 1 in the left, and 1 in the right


S: 2 in the left, and 2 in the right


O: 6 in the left, and 6 in the right.


5) So, the sequence is 1, 3, 1, 2.


Remember, when the none coefficient is shown it is because it is 1.

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