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3 years ago

I need help with these 4

Chemistry

1 answer:

storchak [24]3 years ago

5 0

Rift Valley Examples

East African
Rhine Rift Valley (Germany)
Baikal Rift Valley (Russia)

Rift Valley Facts/Characteristics

Bordered by fault zones and separating land masses
A portion of land that drops, forming a valley.
Formed as tectonic plates move.

Fossils - Examples

Bones
Shells
Exoskeletons
Stone imprints of animals.

Non Examples of Fossils

Stones
rocks
Some bones (If they are fossils they will be a lot heavier than other bones.

Hope this helps.

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Complete the analogy solid:Table:.......water

prisoha [69]

Answer:

Explanation:

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3 years ago

200.0 mL OF A 5.10 M solution are diluted to 500.0 mL. What is the concentration of the resulting solution? *

erastova [34]

Answer:

Concentration of the resulting solution = 2.04 M

Explanation:

M1 = 5.10 M

V1 = 200.0 mL

V2 = 500.0 mL

M2 = ?

By modifying the volume of solution, keeping the amount of solute constant, the concentration changes. To perform the calculations, the equation will be:

$M1*V1=M2*V2$

Where M1 is the initial concentration of the solution, M2 the final concentration and V is the value of the volumes of the initial and final solution.

Clearing the value of M2 from the equation and replacing the values we have:

$M2=\frac{M1*V1}{V2} =\frac{5.10M*200mL}{500mL} =2.04M$

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4 years ago

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Which factors affect a river's load?

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D. because the size and shape of the slope determines weather the load can be sustained and c is correct too because the shape affects how much you can load and b. is correct as also because if the volume is very large it can affect the rivers load and flow.

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3 years ago

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A glass flask has a volume of 500 mL at a temperature of 20° C. The flask contains 492 mL of mercury at an equilibrium temperatu

OverLord2011 [107]

Answer:

101.63° C

Explanation:

Volume expansivity γa = γr - γ g = 18 × 10⁻⁵ - 2.0 × 10⁻⁵ = 16 × 10⁻⁵ /K

v₂ - v₁ / v₁θ = 16 × 10⁻⁵ /K

(500 - 492 ) mL / (492 × 16 × 10⁻⁵) = θ

θ = 101.63° C

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