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Alenkinab [10]
3 years ago
15

If you burn 46.0 g of hydrogen and produce 411 g of water, how much oxygen reacted?

Chemistry
1 answer:
g100num [7]3 years ago
3 0
The answer is 365 grams because you need to subtract 411 by 46.
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Calculate the density from the following information: A red block had a mass of 15.7 g. It was placed into a graduated cylinder
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Answer:

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Explanation:

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Can Intrusive and Extrusive Igneous rocks form from the same mineral composition?
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If 73.5 mL of 0.200 M KI(aq) was required to precipitate all of the lead(II) ion from an aqueous solution of lead(II) nitrate, h
frutty [35]

Answer:

There were 0.00735 moles Pb^2+ in the solution

Explanation:

Step 1: Data given

Volume of the KI solution = 73.5 mL = 0.0735 L

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Step 2: The balanced equation

2KI + Pb2+ → PbI2 + 2K+

Step 3: Calculate moles KI

moles = Molarity * volume

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For 2 moles KI we need 1 mol Pb^2+ to produce 1 mol PbI2 and 2 moles K+

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There were 0.00735 moles Pb^2+ in the solution

3 0
3 years ago
This element has 50 electrons in a neutral atom and is usually mixed with metals to form an alloy.
babymother [125]
Heya!

HERE IS YOUR ANSWER:

Electrons = 50

Atomic number = 50

so, the Element is stannum (Sn)
6 0
3 years ago
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