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2 years ago

How long does primary succession take? ty sm ily

1 answer:

6 0

The process of primary sequencing can take hundreds, if not thousands of years. On the contrary, the process of second succession could re-establish the communities of ecological peaks in as little as 50 years.

Not from google thank me later

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A chemist has one solu6on that is 40% sulfuric acid and one that is 10% sulfuric acid. How much of each should she use to make 2

kipiarov [429]

Answer:

12 L of 40% sulfuric acid solution and 8 L of 10% sulfuric acid solution are needed to make 20 L of sulfuric acid solution.

Explanation:

For first solution of sulfuric acid :

C₁ = 40% , V₁ = ?

For second solution of sulfuric acid :

C₂ = 10% , V₂ = ?

For the resultant solution of sulfuric acid:

C₃ = 28% , V₃ = 20L

Also,

V₁ + V₂ = V₃ = 20L ......................................(1)

Using

C₁V₁ + C₂V₂ = C₃V₃

40×V₁ + 10×V₂ = 28×20

So,

40V₁ + 10V₂ = 560........................................(2)

Solving 1 and 2 as:

V₂ = 20 - V₁

Applying in 2

40V₁ + 10(20 - V₁) = 560

40V₁ + 200 - 10V₁ = 560

30V₁ = 360

V₁ = 12 L

So,

V₂ = 20 - V₁ = 8L

12 L of 40% sulfuric acid solution and 8 L of 10% sulfuric acid solution are needed to make 20 L of sulfuric acid solution.

4 0

3 years ago

SEP Develop a Model: The element argon (Ar) has eight valence electrons and is a liquid at very low temperatures. Sketch a model

Flura [38]

Larger molecules experience larger dispersion forces due to more distance of valance of electrons from the nucleus.

<h2>Cause of stronger dispersion force
</h2>

Larger atoms and molecules have stronger dispersion forces than smaller atoms and molecules because in a larger atom or molecule, the valence electrons are present farther from the nuclei than in a smaller molecule.

They are less tightly held to the nuclear charge present in the nucleus and can easily form temporary dipoles so we can conclude that larger molecules experience larger dispersion forces due to more distance of valance of electrons from the nucleus.

Learn more about dispersion force here: brainly.com/question/1455074

Learn more: brainly.com/question/26140191

6 0

2 years ago

How do I find the formula for Phosphorus Tetroxide

salantis [7]

Formula= P4O6
You are going to want to flip the elements subscripts with one another.
P6O4
P will just stay as phosphorus, but since oxygen has 4 atoms, itbwill become tetroxide

7 0

2 years ago

The old car left on the side of the road showed signs of corrosion. We call this common chemical reaction rusting. The equation

Ivanshal [37]

The old car left on the side of the road showed signs of corrosion. We call this common chemical reaction rusting. The equation for this reaction can be written as 4Fe + 3O2 → 2Fe2O3. What are the reactants in the rusting process?

C. Iron and Oxygen

4 0

2 years ago

Which of the following best defines insulator?

valkas [14]

C.) a substance with a low ability to conduct energy

Explanation:

The statement that best defines insulators is that it is a substance that has low ability to conduct energy.

Insulators resist the movement of mostly electrical and thermal energy.

They have unique properties that makes them so.

Insulators are substances that do not conduct heat and electricity.
Both their solid and molten form lacks the capability of electrical and thermal conduction.
Some substances can only conduct when molten or liquid.
Conductors are materials that allows for the passage of electrical and heat energy.
Most conductors are usually salts, ionic compounds and metals.
Non-conductors like insulators are usually plastics and woods.

learn more:

Metals brainly.com/question/2474874

#learnwithBrainly

3 0

2 years ago