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Natasha_Volkova [10]
3 years ago
13

How is everyone doing today?

Chemistry
2 answers:
anzhelika [568]3 years ago
4 0

Answer:Not so good, but I'll manage. What about you?

Explanation:

Luden [163]3 years ago
4 0
Doing ok. Getting tired of being at home though. Not been anywhere for 3 weeks
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A 2.00 kg piece of lead at 40.0°C is placed in a very large quantity of water at 10.0°C,and thermal equilibrium is eventually re
sveticcg [70]

Answer:

Δ S = 26.2 J/K

Explanation:

The change in entropy can be calculated from the formula  -

Δ S = m Cp ln ( T₂ / T₁ )

Where ,

Δ S = change in entropy

m = mass  = 2.00 kg

Cp =specific heat of lead is 130 J / (kg ∙ K) .

T₂ = final temperature  10.0°C + 273 = 283 K

T₁ = initial temperature ,  40.0°C + 273 = 313 K

Applying the above formula ,

The change in entropy is calculated as ,

ΔS = m Cp ln ( T₂ / T₁ )  = (2.00 )( 130 ) ln( 283 K / 313 K )

ΔS = 26.2 J/K

6 0
3 years ago
Heat and pressure deep beneath earths surface can change any rock into what?
Alik [6]

Answer:

Metamorphic

Explanation:

Because it describes as a rock framed from other rocks by the action of heat and pressure.

5 0
3 years ago
How many grams are equivalent to 1.80x10-4 tons?
zloy xaker [14]
Do you want the estimated answer or the exact answer?

6 0
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What is the element that is in period 5 and group 3?
rjkz [21]

Answer:

Rubidium

Rubidium is the first element placed in period 5. 

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Which planetary body was opportunity designed to explore?
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The rover was designed to explore A.Mars
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