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Wewaii [24]
2 years ago
9

What role do guanacos play in the Andes Mountains ecosystem?.

Chemistry
1 answer:
Nikitich [7]2 years ago
5 0

Grasses and plants are producers, guanacos are herbivores and are primary consumers and pumas are predators and secondary consumers

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Write the names and symbols for four elements in each of the following categories: (a) nonmetal, (b) metal, (c)metalloid.
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Explanation:

Non-metals are the species that are electron deficient and they are able to accept one or more electrons from a donor atom in order to complete their octet.

For  example, carbon (C), nitrogen (N), chlorine, (Cl), phosphorus (P) etc are all non-metals.

Metals are the species that contain more number of electrons in their valence shell and in order to attain stability they easily lose an electron.

For example, sodium (Na), lithium (Li), Beryllium (Be), Magnesium (Mg) etc are all metals.

Metalloids are the species that show properties of both metals and non-metals.

For example, Boron (B), Antimony (Sb), Silicon (Si) and Germanium (Ge) etc are metalloids.

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3 years ago
Water freezes at 32 degrees
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Answer:

Fahrenheit

Explanation:

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Answer:

(a) The coefficient of performance of an irreversible refrigeration cycle is always less than the coefficient of performance of a reversible refrigeration cycle when both exchange energy by heat transfer with the same two reservoirs.

Explanation:

According to the  Kelvin–Planck statement of the second law of thermodynamics ,it is not possible to construct a device which operates in cycle and does not produce effect on the environment than the production of work.

We know that

Coefficient of performance is the ratio of desired effect to the work input in a cycle.

Given all option is correct but most appropriate option is a.

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(a) The coefficient of performance of an irreversible refrigeration cycle is always less than the coefficient of performance of a reversible refrigeration cycle when both exchange energy by heat transfer with the same two reservoirs.

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Answer:

potassium.

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located at start of period 3, will have larger radius

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