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Wewaii [24]
3 years ago
14

(-15)+(-12)+14how do u simplify ​

Chemistry
1 answer:
Lena [83]3 years ago
5 0

Answer:

-15-12-14=-13

Explanation:

we simplify by opening the bracket

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Number of electrons absorbed by the main energy level (n = 4):
VARVARA [1.3K]

Answer:

C

Explanation:

Because 2 x n square gives the total energy level been absorbed = 2 x16

=32

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3 years ago
Which element has the following electron configuration: <br> 1s22s22p63s23p64s23d104p65s24d105p5
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2 years ago
4. Which of the following NOT TRUE about real gas
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Answer:

The answer is D.

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2 years ago
c3H8 + 5O2 = 3CO2 + 4H2O When 44.0 grams of propane (C3H8) under goes complete combustion, how many grams of water will be produ
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<u>Answer:</u> 72 grams of water will be produced.

<u>Explanation:</u>

To calculate the number of moles, we use the formula:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}    ....(1)

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Molar mass of propane = 44 grams

Putting values in above equation, we get:

\text{moles of propane}=\frac{44g}{44g/mol}=1mole

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Mass of water produced = 72 grams

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3 years ago
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The nucleus of an atom contain neutrons and protons, and energy levels surround the nucleus, in rings and contain electrons
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3 years ago
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