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Talja [164]
2 years ago
8

What is the overall charge of an atom? Explain why

Chemistry
1 answer:
Zepler [3.9K]2 years ago
4 0

Answer:

atoms have no overall charge. this is because they contain equal numbers of positive protons and negative electrons

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The work done to compress a gas is 83.0 J. As a result, 27.0 J of heat is given off to the surroundings. Calculate the change in
stellarik [79]

Answer:

ΔU° = 56.0 J

Explanation:

Step 1: Given data

  • Work done to compress the gas (w): 83.0 J (When work is done on the gas, w is positive).
  • Heat given off to the surroundings (q): -27.0 J (When heat is released to the surroundings, q is negative)

Step 2: Calculate the change in the internal energy of the gas (ΔU°)

The internal energy of a gas is the energy contained within it. We can calculate it using the following expression.

ΔU° = q + w

ΔU° = -27.0 J + 83.0 J

ΔU° = 56.0 J

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3 years ago
What magma would have formed from the partial melting of mantle material?.
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Answer:

Basaltic magma is formed through dry partial melting of the mantle. The mantle lies just below the crust of the earth. Basalts make up most of the ocean’s crust; this is why basaltic magma is typically found in oceanic volcanoes. See also what substances are emitted from fumaroles? What type of melting produces most basaltic magmas?

Explanation:

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3 0
2 years ago
A diagram is a:
Nimfa-mama [501]

Answer: A) A Visual representation of Information

Explanation:

Look up the definition of a diagram, it usually defines as what you would think. Example: If I drew a person and I wanted to represent who they were, that would be a diagram

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What are giant piles of mining waste called?
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The giant piles of mining waste called tailings. These wastes consists of ground rock and process effluents from a mining plant. These wastes are stored on a surface either in a facility or in the form of piles. Also, sometimes it is stored underground in areas that are mined out.
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3 years ago
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What’s the answer to this? <br> (2.8 x 10^4) (5.05 x 10^-6)
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The answer is

14.14 x 10^-2
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3 years ago
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