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Novosadov [1.4K]
3 years ago
10

Which compound has the smallest mass. H2O CO H2O2 CO2

Chemistry
1 answer:
wolverine [178]3 years ago
7 0
H2O as it has a relative atomic mass of 18
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mercury has a density of 13.6g/mol what volume of mercury must be taken to obtain 225g of the metal ​
kotykmax [81]

Answer:

16.54 mL

Explanation:

From the question;

  • Density of mercury of 13.6 g/mL
  • Mass of the mercury metal is 225 g

We are needed to determine the volume of the mercury metal;

We need to know that;

  • Density is given by dividing the mass of a substance by its volume.

That is;

Density = Mass ÷ Volume

Rearranging the formula;

Volume = Mass ÷ Density

Therefore;

Volume = 225 g ÷ 13.6 g/mL

             = 16.54 mL

Thus, the volume of the mercury needed is 16.54 mL

4 0
3 years ago
ZnCI2 + H2SO4 = ZnSO4 + HCI
Alex Ar [27]

Answer:

it makes no sense

Explanation:

8 0
3 years ago
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Which of the following is used to break Water down to its elements:
nydimaria [60]
A i’m guessing!
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4 0
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How is fluorine purified so that it is stable? If this is the same as how it was first purified, then state that it is.
krek1111 [17]

Answer:

it is the same way it is purified in the state

4 0
3 years ago
the balloon is inflated outdoors on a cold day in North Dakota at a temperature of -35°C to a volume of 3.0 L. The pressure rema
iragen [17]

3.75 litres is the volume of the balloon indoors at a temperature of 25°C.

Explanation:

Data given:

initial temperature of the gas in balloon  = -35°C or 238.15 K

initial volume = 3 litres

final temperature = 25 °C  or 298.15 K

final volume =?

pressure remains constant

From the data given when pressure is constant Charles' law is applied.

\frac{V1}{T1} = \frac{V2}{T2}

Rearranging the equation to know the final volume of the gas in balloon

V2 = \frac{V1T2}{T1}

V2 = \frac{3 X 298.15}{238.15}

V2 = 3.75 Litres

when the temperature of a gas is increased and pressure remains constant the volume of the gas increases.

7 0
3 years ago
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