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Maslowich
3 years ago
10

2. What does the text list and describe?

Chemistry
1 answer:
Mariana [72]3 years ago
6 0

Answer:

C. ways radiation is transferred into and through Earth's atmosphere

Explanation:

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Suppose much of an old forest will be used for farmland. A certain portion of the land will be set aside as wildlife habitat. Yo
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A certain portion of the land will be set aside as wildlife habitat

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3 years ago
the specific heat capacity of water is 1 cal/gc how much heat in calories is released when 25.7 of water is cooled from 85 to 49
liraira [26]

Answer:

The amount of heat that is released is -925.2 cal

Explanation:

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is the amount of heat that a body can receive or release without affecting its molecular structure, that is, it does not change the state (solid, liquid, gaseous).  In other words, sensible heat is the amount of heat that a body absorbs or releases without any changes in its physical state.

The equation that allows to calculate heat exchanges is:

Q = c * m * ΔT

Where Q is the heat exchanged by a body of mass m, constituted by a substance of specific heat c and where ΔT is the variation in temperature.

In this case:

  • c= 1 \frac{cal}{g*C}
  • m= 25.7 g
  • ΔT= Tfinal - Tinitial= 49 °C - 85 °C= -36 °C

Replacing:

Q= 1 \frac{cal}{g*C} *25.7 g* (-36 C)

Solving:

Q= -925.2 cal

<u><em>The amount of heat that is released is -925.2 cal</em></u>

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3 years ago
Please help me answer this question
abruzzese [7]

Answer:

Electrolytes are observed by conductivity - so unknown 2 should be circled, and Tap Water, which almost always contains electrolytes, mineral salts in solution.

Explanation:

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What determines the physical and chemical property's of a mineral
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