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kolbaska11 [484]
2 years ago
11

How many oxygen molecules are in 5.17g of oxygen gas​

Chemistry
1 answer:
Alex787 [66]2 years ago
4 0

Answer:

is cool is cool goodcripopo

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The set of chemical and physical properties of a ______ are different from those of its constituents.
Veronika [31]

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compound

Explanation:

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3 years ago
What are some examples of monomers and oligomers?
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<span>What are some examples of monomers and oligomers?
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3 years ago
Which two trials could be used to measure the surface area
OLEGan [10]

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Trials A and B

Explanation:

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3 years ago
A teacher performs a flame test lab experiment for various compounds. During the lab, the teacher mislabels one of the solutions
nexus9112 [7]

Answer: By performing the flame test

Explanation:

The flame test can be performed by the teacher to visually identify the substance in the solution. The metals give a characteristic color on burning. The heat of the flame causes the excitation of the electrons present in the metal ions this leads to release of energy along with the emission of visible wavelength of light. This visible light can be observed by human eye. For example, the copper produces the blue color in flame, barium gives green flame, and sodium gives yellow flame.

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2 years ago
A new grill has a mass of 30.0 kg. you put 1.5 kg of charcoal in the grill. you burn all the charcoal and the grill has a mass o
atroni [7]

The reaction for burning of charcoal or complete combustion is as follows:

C(s)+O_{2}(g)\rightarrow CO_{2}(g)

From the above balanced reaction, 1 mole of carbon releases 1 mole of CO_{2} gas.

Converting mass of charcoal into moles as follows:

n=\frac{m}{M}

Molar mass of pure carbon is 12 g/mol thus,

n=\frac{1.5\times 10^{3} g}{12 g/mol}=125mol

The same moles of CO_{2} is released. Converting these moles into mass as follows:

m=n×M

Molar mass of CO_{2} is 44 g/mol thus,

m=125mol\times 44 g/mol=5.5\times 10^{3}g

Converting mass into kg,

1g=10^{-3}kg

Thus, total mass of gas released is 5.5 kg.

7 0
3 years ago
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