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4 years ago

Gaseous water molecules condense when they _. Liquid water molecules evaporate when they _.

1 answer:

3 0

Answer : Gaseous water molecules condense when they cooled. Liquid water molecules evaporate when they heated.

Explanation :

Condensation : It is a process in which a phase changes from gaseous state to liquid state. This process occurs when the water molecules in the air cool down and they join together to form liquid water.

Evaporation : It is a process in which a phase changes from liquid state to gaseous state. This process occurs when the water is heated, the molecules in the water move and vibrate quickly that they escape into the atmosphere as water vapor.

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(I NEED THIS ANSWERED QUICKLY!)

kiruha [24]

Answer:

C. distance between two of the numbered lines

4 0

3 years ago

Read 2 more answers

A sample of O2(g) is placed in an otherwise empty, rigid container at 4224 K at an initial pressure of 4.97 atm, where it decomp

frutty [35]

Answer:

The value of $K_p$ at 4224 K is 314.23.

Explanation:

$O_2(g)\rightleftharpoons 2O(g)$

Initially

4.97 atm 0

At equilibrium

4.97 - p 2p

At initial stage, the partial pressure of oxygen gas = =4.97 atm

At equilibrium, the partial pressure of oxygen gas = $p_{O_2}=0.28 atm$

So, 4.97 - p = 0.28 atm

p = 4.69 atm

At equilibrium, the partial pressure of O gas = $p_{O}=2p=2\times 4.69 atm=9.38 atm$

The expression of $K_p$ is given as :

$K_p=\frac{(p_{O})^2}{(p_{O_2})}$

$K_p=\frac{(9.38 atm)^2}{0.28 atm}=314.23$

The value of $K_p$ at 4224 K is 314.23.

5 0

3 years ago

When water is heated in an ocean the liquid water changes from and turns into?

sasho [114]

Hello!

The answer is Evaporation

When you add heat to water, it boils, releasing gas into the air. This is called Evaporation. The water changes from a liquid to a gas.

Hope this helped!

6 0

3 years ago

How many liters of hydrogen gas at stp are produced from the reaction of 50.0g of magnesium and 75g of hydrochloric acid

ss7ja [257]

Here's how to do it:

Balanced equation first: 
Mg + HCl = H2 + MgCl2 unbalanced 
Mg + 2 HCl = H2 = MgCl balanced 
Therefore 1 mole Mg reacts with 2 moles Hcl. 
50g Mg = ? moles (a bit over 2; you work it out) 
75 g HCl = ? moles (also a bit over 2; you work it out) 
BUT, you need twice the moles HCl; therefore it is the Mg that is in excess. (you can now work out how many moles are in excess, and therefore how much mg is left over). 

So, 2 moles HCl produce 1 mole H2(g) 
therefore, the amount of H2 produced is half the number of moles of HCl 
At STP, there are X litres per mole of gas (look it up - about 22 from memory) 
Therefore, knowing the moles of H2, you can calculate the volume

8 0

4 years ago

What will be the ph of a buffer solution with an acid (pka6. 1) that is exactly half as concentrated as its conjugate base?

anygoal [31]

The pH of a buffer solution with acid that (PKA 6. 1) is exactly half as concentrated as its conjugate base is 6.4.

<h3>What is a buffer solution?</h3>

A buffer solution is a solution that has a maintained pH, not basic or not acidic. Its pH changes when acid or base is added to the solution.

We had to figure out the acid's concentration, which is exactly half that of its potential base.

We know that pH = pH_log

We have less than 6.1 pH so this is a conjugated base.

This will equal to 6.1 + log2 = 6.4

Thus, the pH of a buffer solution with acid is 6.4.

To learn more about buffer solutions, refer to the below link:

brainly.com/question/13169083

#SPJ4

7 0

2 years ago

Gaseous water molecules condense when they _______. Liquid water molecules evaporate when they _______.

Gaseous water molecules condense when they _. Liquid water molecules evaporate when they _.