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Archy [21]
3 years ago
10

Which of the following is not an example of a molecule A. Mn     B. KOH    C. O₃    D. H₂S

Chemistry
2 answers:
Pavel [41]3 years ago
5 0

D. is your final answer!!!! :)))))

goldenfox [79]3 years ago
3 0

look at the chemical tables.  but i believe it is A

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7 0
3 years ago
Calculate the heat absorbed by the water in a calorimeter when 175 grams of lead cools from 125.0°C to 22.0°C. The specific heat
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Answer:

Q = 233.42 J

Explanation:

Given data:

Mass of lead = 175 g

Initial temperature = 125.0°C

Final temperature = 22.0°C

Specific heat capacity of lead = 0.01295 J/g.°C

Heat absorbed by water = ?

Solution:

Heat  absorbed by water is actually the heat lost by the metal.

Thus, we will calculate the heat lost by metal.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = T2 - T1

ΔT = 22.0°C - 125.0°C

ΔT = -103°C

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Q = -233.42 J

Heat absorbed by the water is 233.42 J.

5 0
3 years ago
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3 years ago
2. A 2.5 mol SAMPLE OF OXYGEN GAS (O2) INCREASES TO 3.2 mol
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Given data:

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V_2 = 45 L

Formula

Combined gas law

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P_2 = 696.32 mmHg

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