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Eddi Din [679]
3 years ago
8

So how is your day my love ​

Chemistry
1 answer:
Shalnov [3]3 years ago
5 0

Answer:

all good. tell me about your day

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A sample of an unknown compound with a mass of 0.847 g has the following composition: 50.51 % fluorine and 49.49 % iron. When th
sergejj [24]

Answer: 0,4278g of F and 0,4191g of Fe

Explanation: it's possible to calculate the mass of each element by multiplying the percentage (decimal) of the element by the mass of the compound.

For Fluorine (F)

0,847g * 0,5051 = 0,4278g of F

For iron (Fe)

0,847 * 0,4949 = 0,4191g of Fe

This is determined because even when the compound is decomposed, due to conservative law of mass, the decomposition process do not affect the amount of matter, so the mass of the elements remain even if they are separated from the original molecule.

At the end, the sum of the elements masses should be the total mass of the compound.

4 0
2 years ago
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Why can't scientists simply use carbon-12 (12C) do determine
Alex

Answer:

carbon-12 is not radioactive

Explanation:

The measurement of the age of dead carbon based life forms requires the use of a radioactive isotope hence it is often referred to as radiocarbon dating.

Carbon-12 and Carbon-14 occur together in living things.The half life of Carbon-14 is about 5670 years.

Hence, since Carbon-12 is not radioactive, it can not be used to measure the age of dead carbon based materials.

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3 years ago
Which type of silk is the strongest? (1 po o nonbiodegradable
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d. major ampullate

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Coefficients and other factors that are used to calculate quantities in a chemical reaction are known as ____________________.
Rom4ik [11]

Answer:

stoichiometric factor

Explanation:

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2 years ago
What is the box diagram for periodic elements?
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The boxed diagram name is known as the Periodic Table of Elements in which elements are periodically organized by their atomic number.
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