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faltersainse [42]

2 years ago

14

What is a solution?

2 answers:

Keith_Richards [23]2 years ago

5 0

Answer:

A !!

it a mix where everything is combined together

Blizzard [7]2 years ago

4 0

A as a solution is chemicals mixed together to create a sub chemical. A mixture is with physical elements that take form in objects that cannot physically be entered together through chemicals

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What phase of matter has enough kinetic energy to partially overcome the intermolecular attraction between the particles, allowi

cluponka [151]

The answer is; liquid phase

The characteristics described in the question are those of a liquid. The forces between liquid particles are weaker than the forces between solid particles because the particles are further apart. The particles are not held in a fixed position in the structure hence it can flow and take the shape of the container in which it is in.

3 0

3 years ago

Read 2 more answers

At night,plants take in the gas of

IgorC [24]

Answer:

Oxygen.

Explanation:

They take in oxygen from the air. This is the process of respiration.

5 0

3 years ago

A gas used to extinguish fires is composed of 75 % CO2 and 25 % N2. It is stored in a 5 m3 tank at 300 kPa and 25 °C. What is th

tatyana61 [14]

Answer : The partial pressure of the $CO_2$ in the tank in psia is, 32.6 psia.

Explanation :

As we are given 75 % $CO_2$ and 25 % $N_2$ in terms of volume.

First we have to calculate the moles of $CO_2$ and $N_2$ .

$\text{Moles of }CO_2=\frac{\text{Volume of }CO_2}{\text{Volume at STP}}=\frac{75}{22.4}=3.35mole$

$\text{Moles of }N_2=\frac{\text{Volume of }N_2}{\text{Volume at STP}}=\frac{25}{22.4}=1.12mole$

Now we have to calculate the mole fraction of $CO_2$ .

$\text{Mole fraction of }CO_2=\frac{\text{Moles of }CO_2}{\text{Moles of }CO_2+\text{Moles of }N_2}$

$\text{Mole fraction of }CO_2=\frac{3.35}{3.35+1.12}=0.75$

Now we have to calculate the partial pressure of the $CO_2$ gas.

$\text{Partial pressure of }CO_2=\text{Mole fraction of }CO_2\times \text{Total pressure of gas}$

$\text{Partial pressure of }CO_2=0.75mole\times 300Kpa=225Kpa=225Kpa\times \frac{0.145\text{ psia}}{1Kpa}=32.625\text{ psia}$

conversion used : (1 Kpa = 0.145 psia)

Therefore, the partial pressure of the $CO_2$ in the tank in psia is, 32.6 psia.

3 0

3 years ago

Is phosphorus tribromide a covalent compounds or ionic compounds

daser333 [38]

Phosphorus tribromide is a covalent compound because they share electron pairs.

6 0

3 years ago

What is the formula for the aqueous salt produced when hydroiodic acid is neutralized by potassium hydroxide?

coldgirl [10]

Answer:

KOH(aq) + HCI(aq) -----> KCI(aq )+ H2O

base acid salt water

hope this helps :)

Explanation:

5 0

3 years ago