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Igoryamba
3 years ago
6

You place a balloon in a closed vacuum chamber at standard temperature and pressure (STP). You decrease the pressure in the cham

ber by half but keep the temperature constant. What happens to the volume of the balloon?
a.It stays the same volume.
b.It doubles in volume.
c.It reduces in size by half the original volume.
Chemistry
1 answer:
dybincka [34]3 years ago
8 0
B it doubles in volume
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ryzh [129]
Drink lots of water and pain medication 
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3 years ago
What is the difference between evaporation and transpiration? What role does each process play in the water cycle?
vazorg [7]

Answer:

Evaporation happens from the any water body (like ponds, rivers, water stored in cup etc) while the transpiration essentially happens in plants only.

The evaporation and transpiration plays a major role in the water cycle as they help in formation of clouds and precipitation

Explanation:

Evaporation:

It is the process of formation and transfer of the water vapor from the surface of the liquid into the atmosphere.

Transpiration:

It is the process of transfer of the water vapors in the atmosphere from the pores present in the leaves of the plants.

The water is carried from the ground through the stems to the leaves.

The major difference between the evaporation and transpiration is that the evaporation happens from the any water body (like ponds, rivers, water stored in cup etc) while the transpiration essentially happens in plants only.

The evaporation and transpiration plays a major role in the water cycle as these process helps in transfer of the surface water into the atmosphere, which helps in formation of clouds and precipitation.

3 0
3 years ago
When KCl dissolves in water:
34kurt

This dissociation occur because:

O had to bond with H due to the Hydrogen bonding rule, which will form OH~ (Hydroxide).

K is more attracted to Hydroxide than Cl, so it will depart Cl and bond with OH~.

that leaves a H and a Cl, which one has a positive charge and the other has a negative, so they will bond and form Hydrochloric Acid.

3 0
3 years ago
HClO4 acid solution has a concentration of 5 Molarity. Calculate the concentration of this solution in
Nutka1998 [239]

Answer:

1. Percentage by weight = 0.5023 = 50.23 %

2. molar fraction =0.153

Explanation:

We know that

Molar mass of HClO4 = 100.46 g/mol

So the mass of 5 Moles= 5 x 100.46

       Mass (m)= 5 x 100.46 = 502.3 g

Lets assume that aqueous solution of HClO4  and the density of solution is equal to density of water.

Given that concentration HClO4 is 5 M it means that it have 5 moles of HClO4 in 1000 ml.

We know that

Mass = density x volume

Mass of 1000 ml  solution = 1 x 1000 =1000     ( density = 1 gm/ml)

            m'=1000 g

1.

Percentage by weight = 502.3 /1000

Percentage by weight = 0.5023 = 50.23 %

2.

We know that

molar mass of water = 18 g/mol

mass of water in 1000 ml = 1000 - 502.3 g=497.9 g

So moles of water = 497.7 /18 mole

moles of water = 27.65 moles

So molar fraction = 5/(5+27.65)

molar fraction =0.153

6 0
3 years ago
If the temperature of one mole of gas increases while its volume decreases, would you expect the gas pressure to increase, decre
tangare [24]

Answer:

Pressure will increase since their is not much room

please give brainliest

Explanation:

8 0
4 years ago
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