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Bingel [31]
3 years ago
5

Where and in what features is water found on Earth?

Chemistry
1 answer:
vlada-n [284]3 years ago
5 0

Answer:  On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers. It also exists below ground as groundwater, in wells and aquifers. Water vapor is most visible as clouds and fog. The frozen part of Earth's hydrosphere is made of ice: glaciers, ice caps and icebergs.

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How much heat will be absorbed by 395g of water when it's temperature is raised by 55°C​
Firdavs [7]

Answer:

\boxed{\text{91 kJ}}

Explanation:

The formula for the heat released is

q = mCΔT

Data:

 m = 395 g

 C = 4.184 J·°C⁻¹g⁻¹

ΔT = 55 °C

Calculations:

q = 395 × 4.184 × 55 = 91 000 J = 91 kJ

The water will absorb \boxed{\textbf{91 kJ}} of energy.

3 0
3 years ago
HELP ME PLEASE ASAP. I'LL MARK YOU BRAINLIEST <br> ITS NUMBER 23.
Ivanshal [37]

Answer:

The answer is A

Explanation:

5 0
3 years ago
Liquid in a graduated cylinder has a volume of 70 mL. You put a small solid ball into the cylinder, and the height of the liquid
emmasim [6.3K]
Yes sir








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8 0
3 years ago
ΔG o for the reaction H2(g) + I2(g) ⇌ 2HI(g) is 2.60 kJ/mol at 25°C. Calculate ΔG o , and predict the direction in which the rea
kondaur [170]

Answer:

The reaction is not spontaneous in the forward direction, but in the reverse direction.

Explanation:

<u>Step 1: </u>Data given

H2(g) + I2(g) ⇌ 2HI(g)     ΔG° = 2.60 kJ/mol

Temperature = 25°C = 25+273 = 298 Kelvin

The initial pressures are:

pH2 = 3.10 atm

pI2 = 1.5 atm

pHI 1.75 atm

<u>Step 2</u>: Calculate ΔG

ΔG = ΔG° + RTln Q  

with ΔG° = 2.60 kJ/mol

with R = 8.3145 J/K*mol

with T = 298 Kelvin

Q = the reaction quotient → has the same expression as equilibrium constant → in this case Kp = [p(HI)]²/ [p(H2)] [p(I2)]

with pH2 = 3.10 atm

pI2 = 1.5 atm

pHI 1.75 atm

Q = (3.10²)/(1.5*1.75)

Q = 3.661

ΔG = ΔG° + RTln Q  

ΔG = 2600 J/mol + 8.3145 J/K*mol * 298 K * ln(3.661)  

ΔG =5815.43 J/mol = 5.815 kJ/mol

To be spontaneous, ΔG should be <0.

ΔG >>0 so the reaction is not spontaneous in the forward direction, but in the reverse direction.

4 0
3 years ago
In the diagram, which letter represents the energy of the products?
inessss [21]

Answer:

D

Explanation:

8 0
3 years ago
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