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Leona [35]
3 years ago
5

3. Graphically depict and explain your own hierarchy of life

Chemistry
1 answer:
lina2011 [118]3 years ago
5 0

Answer:

Hierarchy of life can be described as the different levels of biological organization.

The different levels of the hierarchy of life can be depicted as follows:

Atoms: Atoms are the sub- units which make up an organism.

Molecules: Atoms combine to form molecules.

Cells: Different molecules or atoms combine to form cells.

Tissues: Different cells work together to form tissues.

Organs: Different tissues work together to form organs.

Organ system: Different organs work together to form organ systems.

Organism: All the organ system work together to form an organism.

Species: Organisms which can inter-breed and produce fertile offsprings.

Population: All the organisms of a particular species in an area at a particular time.

Community: All the different populations of species of an area  at a particular time.

Ecosystem: The living and the non-living components of an area.

Biome: All the ecosystems combine to form biome.

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If a solution has a pOH of 8.71, what is the [H+]?
TEA [102]

Answer: 5.1\times 10^{-6}M

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

pH=-\log [H^+]

pH+pOH=14

Putting in the values:

pH=14-8.71=5.29

5.29=-log[H^+]

[H^+]=5.1\times 10^{-6}

Thus [H^+] is 5.1\times 10^{-6}M

6 0
4 years ago
True or false. test tubes, spot and/or well plate will be used to combine substances in bottles and form a reaction. group of an
tresset_1 [31]

Test tubes, spot and/or well plate will be used to combine substances in bottles and form a reaction is referred to a true statement.

<h3>What is a Chemical reaction?</h3>

This is the reaction which involves substances known as reactants combining new substances which are referred to as products. This is usually done in the laboratory and equipment and tools such as test tubes, thermometer etc are used.

Test tubes, spot and/or well plate are often used to combine substances in bottles and form a reaction which must be handled with care to ensure it doesn't spill.

This is therefore the reason why the option true was chosen as the most appropriate choice.

Read more about Chemical reaction here brainly.com/question/11231920

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4 0
2 years ago
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6 0
3 years ago
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Why won't a fat–soluble vitamin dissolve in water?
Nataliya [291]
<span>small organic molecules will not dissolve in water cannot be synthesized by body (except vitamin D) supplements packaged in oily gel caps excesses can cause problems since fat-soluble vitamins are not excreted readily</span>
8 0
3 years ago
Picture of gas laws question below:
Vera_Pavlovna [14]

Volume of the tank is 5.5 litres.

Explanation:

mass of the CO2 is given 8.6 grams

Pressure of the gas is 89 Kilopascal which is 0.8762 atm

Temperature of the gas is 29 degrees ( 0 degrees +273.5= K) so (29+273)

R = gas constant 0.0821 liter atmosphere per kelvin)

FROM THE IDEAL GAS LAW

PV=nRT ( P Pressure, V Volume, n is number of moles of gas, R gas constant, Temperature in Kelvin)

no of moles = mass/atomic mass

                    =  8.6/44

                    = 0.195 moles

now putting the values in equation

V=nRT/P

  = 0.195*0.0821*302/ 0.8762

  = 5.5 litres.

As the carbon dioxide gas occupies the volume os the tank hence volume of tank is 5.5 litres.

4 0
3 years ago
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