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Lunna [17]
2 years ago
7

It’s cold outside and you decide to cook some pasta. As you boil the noodles, the kitchen window begins to fog up. Which process

es are at work here?
Chemistry
2 answers:
Monica [59]2 years ago
4 0
Condensation is the process
Tcecarenko [31]2 years ago
3 0
Condensation-the process by which water vapor in the air is changed into liquid water.
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If air is 80 percent nitrogen and 20 percent oxygen by volume what is density
Evgen [1.6K]
1 mol of any gas or mix of gases at STP conditions will have a volume of 22.4 L. Since the problem doesn’t said what are the conditions I will asume that are STP condition and the volume of one mole of the mix will have a volume of 22.4 L.

You may know that density is
D=m/v

In one mole of air I will have 80% of Nitrogen (N2) and 20% oxygen (O2).

So the mass of one mole of air will be

14 x2x0.80+16x2x0.20 = 22.4 g + 6.4 g = 28.8 g

D= 28.8/22.4 = 1.28 g/L

Of course if the temperature is higher the density will be smaller because the volume of one mole will be bigger and viceversa if the temperature decrease. Also if the pressure is different than one atm the volume of a mol will change.
5 0
3 years ago
Arrange in terms of increasing atomic radius. From smallest to largest.<br> S, F, Sr, Na, Ga
BaLLatris [955]

Answer:

F<S<Na<Ga<Sr

Explanation:

Atomic radius increased from the right of the periodic table to left, and from the top to the down

5 0
3 years ago
The condition that a reaction takes place without outside help Choose... Solution in which no more solute can be dissolved in th
11Alexandr11 [23.1K]

Answer:

Difference of the enthalpy (of a system) minus the product of the entropy and absolute temperature

Explanation:

The basis of spontaneity in a chemical reaction is that ∆G must be negative. ¡∆G is known as the change in free energy of a system. If ∆G is negative, then the reaction will occur without any external help (the reaction is spontaneous at room temperature).

∆G is given by;

∆G= ∆H -T∆S

Where;

∆H= change in enthalpy of the system

T= absolute temperature of the system

∆S= change in entropy

Hence; when ∆H -T∆S gives a negative result, the reaction proceeds without any external help.

4 0
3 years ago
Question 1
olchik [2.2K]

Answer:

Explanation:

nm

4 0
2 years ago
What is the difference between the Warn-on-Forecast method and the current method of weather prediction?
Tanya [424]
I would think the answer would be C. Based off of what I've learned and heard. Sorry if it's not the correct answer though.
5 0
3 years ago
Read 2 more answers
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