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zavuch27 [327]
3 years ago
12

His sphere is home to the largest portion of animal life on Earth.

Chemistry
2 answers:
iogann1982 [59]3 years ago
8 0

His sphere is home to the largest portion of animal life on Earth.

Answer: Biosphere

ehidna [41]3 years ago
8 0

Answer:

biosphere

Explanation:

biosphere.

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A chemistry student needs 45.0mL of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the stud
Masja [62]

The mass of pentane the student should weigh out is

The density of pentane is 0.626 gcm-3

To calculate the mass of pentane following expression is used,

(Density is defined as the mass divide by volume)

Density = mass / volume

mass of pentane = Density of pentane * Volume of pentane

mass of pentane = 0.626 gcm-3 * 45.0 mL

                             = 28.17 g

Here the unit of mass of pentane is g,

However the unit of density is gcm-3 and unit of volume is mL i.e. cm3

Hence,   Mass = gcm-3 * cm3

              Mass = g

The mass of pentane the student should weigh out is 28.17g

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5 0
1 year ago
Chemical reactions forming ions _____.
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3 years ago
Which is an example of a precipitation reaction?
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Chemistry: Atoms and elements. having trouble figuring out how to find out what element these atoms represent any help will be a
Marrrta [24]

Answer:

Elements are types of atoms that have a unique number of protons. In fact, from left to right, the periodic table is arranged by the number of protons that each element contains. oms make up matter. An atom is the smallest unit of matter that retains all of the chemical properties of an element.

Explanation:

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