3 years ago

HELPPPPPPP PLEASEEEE!!!!!!!

Chemistry

2 answers:

AnnyKZ [126]3 years ago

7 0

The answer is increases

tester [92]3 years ago

4 0

Answer:c

Explanation:

it increases by when it moves

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Help needed ASAP, I will mark your answer as brainliest.

evablogger [386]

Answer:

Explanation:

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3 years ago

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Using the Hoffman apparatus for electrolysis, a chemist decomposes 2.3 moles of water into its gaseous elements. How many grams

solong [7]

Answer:

2.318032g

Explanation:

-The electrolysis equation of water is written as below:

$2H_2O_{(l)}->2H_2_{(g)}+O_2_{(g)}$

-The mole ratio of Water to the hydrogen formed is 1:1, therefore 2.3 moles of hydrogen gas is produced.

-Hydrogen's molar mass is 1.00784 grams:

$Mass=moles\times molar \ mass\\\\\=2.3\times 1.00784\\\\=2.318032\ g$

Hence, 2.318032 grams of hydrogen is produced.

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3 years ago

Can someone help me answer this

Ostrovityanka [42]

Answer:sorry

Explanation:

3 0

2 years ago

PLSSS HELP FAST

Aliun [14]

Note the formula

$\boxed{\sf Mass\:no=No\:of\:protons+No\:of\:neutrons}$

For X:-

No of protons:-

$\\ \sf\longmapsto 19-10=9protons$

It is Fluorine.

For Y:-

No of protons:-

$\\ \sf\longmapsto 16-8=8protons$

It is Oxygen.

Option D is correct

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2 years ago

Archaeology has shown that ancient people _____.

Readme [11.4K]

I would say developed technologies which somehow were lost

like the stone age: the stone hammer, who used that afterwards in the roman empire era and stuff?

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3 years ago

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