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3 years ago

Which statement best explains the relationship between an area's geography and the temperature of its surface water?

Chemistry

1 answer:

Darina [25.2K]3 years ago

6 0

B.) Areas at low latitudes have the warmest water because they receive the most direct sunlight.

Explanation:

The most accurate statement of all that shows the relationship between an area's geography and temperature of its surface water is that areas at low latitudes have the warmest water because they receive the most direct sunlight.

Areas at low latitude are close to the equator. Areas at high latitude tends towards the pole.

At the equator, the sun is over head and it beams direct sunlight to all parts here.
This makes ocean water to be at a high temperature in low latitude.
At high latitude, the ocean surface receives diffused sunlight.
This makes them less warm compared to areas around the equator at low latitude.

learn more:

latitude brainly.com/question/4504954

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A 59.1 sample of aluminum is put into a calorimeter (see sketch at right) that contains of water. The aluminum sample starts off

Gemiola [76]

Answer:

Specific heat capacity of aluminium is 0,863 J/g°C

Explanation:

Values: 250g of water, aluminum sample starts off at 91.3°C, water starts off at 16.0°C, temperature of the water stops changing it's 19.5°C

In this problem, the heat produced for the aluminium is the same consumed by water. The heat consumed by water is:

Q = C×m×ΔT (1)

Where C is specific heat of water (4,184J/g°C), m is mass of water (250,0g) and ΔT is change in temperature of water (19,5°C-16,0°C = 3,5°C)

Replacing:

Q = 4,184J/g°C×250,0g×3,5°C

Q = 3661 J

Using (1), it is possible to obtain specific heat of aluminium, thus:

Q / (m×ΔT) = C

Where Q is heat (3661J), m is mass (59,1g) and ΔT is change in temperature (91,3°C - 19,5°C( = 71,8°C

Replacing:

3661J / (59,1g×71,8°C) = C

C = 0,863 J/g°C

I hope it helps!

4 0

3 years ago

In a coffee-cup calorimeter, 50.0ml of 0.100M AgNO3 and50.0ml of 0.100M HCl are mixed to yield the following reaction:

Marina CMI [18]

Answer:

-66.88KJ/mol

Explanation:

It is possible to obtain the heat involved in a reaction using a calorimeter. Formula is:

q = -C×m×ΔT

Where q is heat of reaction, C is specific heat capacity (4.18J/°Cg), m is mass of solution (100.0g) and ΔT is temperature change (23.40°C-22.60°C = 0.80°C)

Replacing:

q = -4.18J/°Cg×100.0g×0.80°C

q = -334.4J

Now, in the reaction:

Ag⁺ + Cl⁻→ AgCl

AgNO₃ as source of Ag⁺ and HCl as source of Cl⁻

Moles that react are:

0.050L× (0.100mol /L) = 0.0050moles

If 0.0050 moles produce -334.4J. Heat of reaction is:

-334.4J / 0.0050moles = -66880J/mol = -66.88KJ/mol

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3 years ago

What is the advantage of using Microsoft Excel to create a graph, as opposed to pen and paper?

natali 33 [55]

Answer:

the advantage of using Microsoft Excel to create a graph, as opposed to pen and paper is it will help you get the right answer

Explanation:

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2 years ago

Which term refers to the formation of ions as a result of a chemical reaction?

tangare [24]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Ionization is the term refers to the formation of ions as a result of a chemical reaction.

Ionization, in general, occurs whenever sufficiently energetic charged particles or radiant energy travel through gases, liquids, or solids. Charged particles, such as alpha particles and electrons from radioactive materials, cause extensive ionizationalong their paths.

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Makovka662 [10]

Newton's second law of motion can be formally stated as follows:

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This verbal statement can be expressed in equation form as follows:

a = Fnet / m

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3 years ago

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