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4 years ago

What is the difference between a subsurface and a surface event? List an example of each from the rock cycle.

Chemistry

1 answer:

GenaCL600 [577]4 years ago

4 0

Answer:

The events in the rock cycle can be divided into categories:

a) Surface Events

These are the changes that occur on the surface of the earth. This includes weathering and erosion

Igneous Rocks

b) Subsurface Events

These are the changes in the cycle that occur in the inner surface of our planet. This is under the surface of Earth. This includes process like plate tectonics and mountain building.

Sedimentary

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According to the fossil record found in these sedimentary layers, what conclusion can be drawn about the movement of life to lan

Andrei [34K]

A conclusion that can be drawn about the movement of life to land is that;

B.) As land plants became more complex, animal life did as well.

The plants have also adapted to reduce the water loss across cell walls. This is made possible by waxy cuticles.

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3 years ago

Read 2 more answers

two perfumes A and B were released at the same time and you are standing 7.5metres away from both of them.molarmass of perfume A

kifflom [539]

17.40 sec is the time will take to smell second perfume after diffusion takes place

Acc. to Graham's law of Diffusion

Diffusion of Gas inversely proportional to square root of its Molecular mass.

rb (Perfume B)

ra(perfume A)

= $\sqrt{\frac{Ma}{Mb} }$ its equation (1)

Give molar mass of Perfume A = 275 g/mol

molar mass of Perfume B= 205g/mol putting value in (1)

» $\frac{rb}{ra}=\sqrt{\frac{275}{205} }$

$\frac{rb}{ra} =1.16$ its eq (2)

» Perfume B will defuse 1:16 times faster than perfume A.

Hence, perfume B will be first smelled by Person.

Sf Equal volume V of two goes diffuse in t1 and t2 sec. respectively ton

$\frac{ra}{rb}=\frac{tb}{ta}$

Now,, from eq(2) toto

1/1:15 = $\frac{tb}{ta}$

Given tb =the smell of Perfume B as it diffuse faster

ta= 1.15 x 15 see

=ta2=17.40 sec

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1 year ago

What are some examples of mixtures?

Flura [38]

Here are 5 examples of suspensions mixtures:

1-mercury shaken in oil

2-oil shaken in water

3-powdered chalk in water

4-dust in air

5-soot in air

hope this helps

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3 years ago

The density of osmium, which is the densest metal, is 22.57 g/cm3. What is the mass in kg of a block of osmium that measures 1.0

mash [69]

Answer:

0.2257kg

Explanation:

Using the formula density= mass/ volume

density=22.57g/cm³
volume=1*4*2.5cm³= 10cm³
mass is unknown

22.57g/cm³=mass/10cm³

cross multiply

mass = 22.57g/cm³*10cm

=225.7g

but in kg

convert to kg
225.7/1000

= 0.2257kg

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3 years ago

How does a soap made from sodium hydroxide differ from a soap made from potassium hydroxide?

EastWind [94]

Sodium hydroxide (often called just "lye") makes bar soap - solid, opaque bar soap

potassium hydroxide (often called "potash") makes liquid soap - flowing, clear or translucent liquid soap

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3 years ago