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3 years ago

What are 2 possible outcomes if a continental plate collides with another continental plate

Chemistry

1 answer:

miss Akunina [59]3 years ago

3 0

Volcano's and earthquakes are both outcomes from a collision of continental plates.

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A 5.098 mass % aqueous solution of potassium hydroxide has a density of 1.05 g/mL. Calculate the molality of the solution. Give

GarryVolchara [31]

<u>Answer:</u> The molarity of solution is 0.954 M

<u>Explanation:</u>

We are given:

5.098 mass % solution of potassium hydroxide

This means that 5.098 grams of potassium hydroxide is present in 100 grams of solution

To calculate volume of a substance, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of solution = 1.05 g/mL

Mass of solution = 100 g

Putting values in above equation, we get:

$1.05g/mL=\frac{100g}{\text{Volume of solution}}\\\\\text{Volume of solution}=\frac{100g}{1.05g/mL}=95.24mL$

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

Given mass of potassium hydroxide = 5.098 g

Molar mass of potassium hydroxide = 56.1 g/mol

Volume of solution = 95.24 mL

Putting values in above equation, we get:

$\text{Molarity of solution}=\frac{5.098\times 1000}{56.1\times 95.24}\\\\\text{Molarity of solution}=0.954M$

Hence, the molarity of solution is 0.954 M

7 0

4 years ago

PLEASE HELP ME If a radioactive substance has an initial mass of 50 grams

Yuri [45]

Answer: $3.125\ g$

Explanation:

Given

Initial mass $A_o=50\ g$

half-life is $T_{\frac{1}{2}}=5\ years$

At any time the left amount is given by

$A=A_o2^{-\dfrac{t}{T_{\frac{1}{2}}}}\\\\\text{Insert the values}\\\\A=50\cdot 2^{-\dfrac{20}{5}}\\\\A=50\cdot 2^{-4}\\\\A=\dfrac{50}{16}\\\\A=3.125\ g$

3 0

3 years ago

You want to know if iron will rust faster at higher temperatures you conduct a series of experiments under different conditions

Dafna1 [17]

You would then conduct a theory

4 0

4 years ago

Read 2 more answers

Lithium salts are often much less soluble in water than the corresponding salts of other alkali metals. For example, at 18°C, th

serious [3.7K]

Lithium is one of element of group 1 of periodic table.

Lithium has the smallest radius than as compared to the other elements, thus the density of the alkali metal is also less.

Lithium when added to water it floats, because of lower density. It eventually fizzes and becomes smaller.

The reaction on lithium and water is:

2Li + 2H₂O --> 2LiOH + H₂ (g)

The hydrogen gas which is liberated is highly flammable.

Thus, lithium salts are insoluble in water.

Density is defined as the mass of a substance per unit volume.

Density = Mass ÷ Volume.

To know more about Alkali metals, refer to this link:

brainly.com/question/5063184

#SPJ4

8 0

2 years ago

Lance wants to separate out the salt from a solution of salt water how can he do this

qwelly [4]

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Answer: Boiling the water

I hope this helped!

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4 0

3 years ago