2 years ago

Who can answer these?

Chemistry

1 answer:

sesenic [268]2 years ago

6 0

For the first one.. the Reactant side is Zn+2HCl produces Zncl2 and H2... and it is balanced too

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Iron (III) nitrate (Fe(NO3)3) solution reacts with sodium hydroxide (NaOH) solution to form a

sveticcg [70]

Answer:

Fe(NO3)3 + 3 NaOH ===》Fe(OH)3 + 3 NaNO3

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2 years ago

A sample of a compound is analyzed and found to contain 0.420 g nitrogen, 0.480g oxygen, 0.540 g carbon and 0.135 g hydrogen. Wh

RSB [31]

Answer:

C2H5NO

Explanation:

constituent elements N O C H

Mass composition 0.420 0.480 0.540 0.135

mole ratio 0.42/14 0.48/16 0.54/12 0.135/1

= 0.03 0.03 0.045 0.135

dividing by the smallest 0.03/0.03 0.03/0.03 0.045/0.03 0.135/0.03

ratio = 1 1 1.5 4.5

= 1 1 2 5

EMPERICAL FORMULA = C2H5NO

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2 years ago

A manufacturing plan has been found guilty of polluting the nearby river. this is pollution

solniwko [45]

Yes it is polluting the river with everything the manufaturing plant gives off such as the chemicals released in the air

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2 years ago

What is the matter of science

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The finagling in the hole

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2 years ago

Using words, explain all steps of dimensional analysis when converting 6.7 hectometers to meters. You must explain the set up of

sleet_krkn [62]

Answer:

See below

Explanation:

In order to convert 6.7 hectometers to meters using dimensional analysis, you must use the ratio of hectometers to meters.

There are 100 meters in one hectometer, then you start setting the equality: 100 m = 1 hm.

Dividing both sides by 1 hm you get the fraction form of the ratio, with meters (m) in the numerator and hectometers (hm) in the denominator.

$1m/100hm$

Since hm is in the numerator, when you multiply 6.7 hm by the unit ratio the hm will be canceled and the result will have only m:

$6.7hm\times 1m/100hm=0.067m$

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3 years ago