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8_murik_8 [283]
2 years ago
14

-273 degrees = absolute zero

Chemistry
2 answers:
lianna [129]2 years ago
6 0

Answer:

-273 degrees Celsius = zero degrees Kelvin = -459.67 Fahrenheit

Explanation:

lys-0071 [83]2 years ago
4 0
The answer is Kelvin
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Read the passage below and choose the best answer for the main idea of the passage:
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Why does aluminium oxide (Al2O3) have a higher melting point than sodium oxide (Na2O)?
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Al2O3 has a higher melting point than Na2O. This is because the ionic bond between Al3+ ions and O2- ions is stronger than that between Na+ and O2-. The charge on the Al3+ ion is larger than that of the Na+ ion

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3 years ago
Consider a situation in which 211 g
Stella [2.4K]

Answer:

3.00 mol

Explanation:

Given data:

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Mass of oxygen = 240 g

Moles of P₂O₅ = ?

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Chemical equation:

P₄ + 5O₂       →     2P₂O₅

Number of moles of P₄:

Number of moles = mass/ molar mass

Number of moles = 211 g / 123.88 g/mol

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Number of moles of O₂ :

Number of moles = mass/ molar mass

Number of moles = 240 g / 32g/mol

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Now we will compare the moles of product with reactant.

                       O₂         :         P₂O₅

                        5          :           2

                        7.5       :        2/5×7.5 = 3.00

                       P₄          :         P₂O₅

                        1           :           2

                       1.7         :       2×1.7 = 3.4 mol

Oxygen is limiting reactant so the number of moles of P₂O₅ are 3.00 mol.

Mass of P₂O₅:

Mass = number of moles × molar mass

Mass = 3 mol ×283.9 g/mol

Mass = 852 g

3 0
2 years ago
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