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yawa3891 [41]
3 years ago
12

Help what is a b c please I want help this my quiz quick

Chemistry
1 answer:
stich3 [128]3 years ago
4 0

Answer:

1.

A= <u>sum</u><u>(</u><u>mass</u><u>*</u><u>percent</u><u> </u><u>abundance</u><u>)</u>

M 100

=(23.985*78.70)+(24.946*10.13)+(25.983*11.17)/100

= 24.3

2. The element is Magnesium.

3. 2412Mg,2512Mg and 2612Mg

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A sample of an unkown liquid has a volume of 30.0 ml and a mass of 6 g.What is its density?
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0.2 g/mL

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4 years ago
Please help
Vika [28.1K]

Answer:

1 atom of carbon on the reactant side (CH₄ is methane, 1 carbon, 4 hydrogen).

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4 hydrogen on reactant side (CH₄ is methane, 1 carbon, 4 hydrogen).

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4 oxygen atom on the reactant side (2O₂ means two diatomic molecules, or two oxygen molecules of 2 atoms each).

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2 molecules of oxygen on the reactant side.

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A Ionic bond is chemical bond between two oppositely charged ions because of the transfer of valence electrons between them.

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The bond of a carbon dioxide molecule is covalent bond (Polar covalent bond if you've learned that yet)

Potassium Fluoride (KFl) form an ionic bond.

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8 0
3 years ago
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Bezzdna [24]

Answer: C9H11O3N

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The percentage by mass of each element is divided by its relative atomic mass. The lowest ratio is now observed. Each ratio is now divided by this lowest ratio and approximated to whole numbers. All these are shown in detail in the image attached.

3 0
3 years ago
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