3 years ago

Pollution comes from many small sources.

Chemistry

1 answer:

Digiron [165]3 years ago

5 0

Answer: True

Hope this helps

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Why did mendeleev leave blank spaces in his version of the periodic table?.

Leviafan [203]

<h2>Answer: He left blank spaces for undiscovered elements to be added to the table.</h2>

Explanation:

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1 year ago

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Predict the following product(s) of the following reaction? F2 + KCI →

slega [8]

Answer:

${ \rm{F _{2(g)} + 2KCl _{(aq)} → { \bold{2KF _{(g)} + Cl_{2(g)} }}}}$

Explanation:

» The prediction is 98% correct because single displacement reaction type is highly possible.

This is because Fluorine has is more electronegative than Chlorine in Potassium Chloride. So, it strongly displaces Chlorine from the solution hence forming Chlorine gas.

» The 2% of wrong prediction maybe because of wrong reactant measurements following mole concept chemistry.

If you are asked the observation,

Observation » A green yellowish gas is formed.

This gas is Chlorine gas (Cl2)

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2 years ago

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Assoli18 [71]

There's no question??

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3 years ago

If you test the boiling point of ethanol and have a 2.3% error, what was the boiling point of ethanol in the test?

anyanavicka [17]

Answer:

the answer is A

Explanation:

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2 years ago

1. Naturally occurring europium (Eu) consists of two isotopes was a mass of 151 and 153. Europium- 151 has an abundance of 48.03

sergejj [24]

The atomic mass of Europium is 152 amu

Work:
151(0.4803) = 72.52 amu
153(0.5197) = 79.5 amu
72.5 + 79.5 = 152 amu

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3 years ago

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