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suter [353]
3 years ago
10

Light comes from A. Nerve impulses. B. Electrons. C. An object vibrating. D. Photons

Chemistry
1 answer:
Radda [10]3 years ago
7 0
D. photons it contains light but with zero mass
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Subway Surfer number 3 it says the color of a substance is an example of a(n) ___ (in science) pick these choices on the image.
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C is your answer. Because if you add two of them together you get a compound.
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3 years ago
What is the measurement 1043. L rounded off to two significant figures?
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Answer:

1000L

Explanation:

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Predict the product formed when the compound shown below undergoes a reaction with mcpba in ch2cl2. mcpba is meta-chloroperoxybe
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7 0
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. an ionic compound is composed of 34.95 g of iron and 15.05 g of oxygen. find the empirical formula of this compound.
Contact [7]

Empirical formula of ionic compound is FeO. In which the composition of atoms is 1 : 1.

Empirical formula of an ionic compound is defined as the formula which gives whole number ratio of atoms of various elements present in molecule of compund.

mass of iron in compound = 34.95 g

molar mass of iron = 55.8 g

mass of oxygen in compound = 15.05 g

molar mass of oxygen = 32 g

number of moles of iron present in the compound are ratio of mass of iron in compound/ molar mass of iron

number of moles of iron in compound= 34.95 / 55.8 = 0.6263 ~ 1

number of moles oxygen in compound= 15.05/ 32 = 0.473 ~ 0.5

the ratio of the number of oxygen atoms to number of iron atoms present in one formula unit of iron compund is 2×0.5 / 1 = 1 : 1

Hence , the required empirical formula of iron compound is FeO.

To learn more about Emiprical formula, refer:

brainly.com/question/1439914

#SPJ4

3 0
1 year ago
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