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QveST [7]
3 years ago
9

Consider all the elements in the periodic table. The stair-step line between the pink squares and the yellow squares separates t

he _______ (pink) from the _______ (yellow)
A. Gasses; solids

B. Metals; nonmetals

C. Nonmetals; metals

D. Reactive; nonreactive

Chemistry
1 answer:
lesantik [10]3 years ago
4 0

B. Metals; nonmetals

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What is the pressure of 0.5 mol of nitrogen gas in a 5 L container at 203 K
vlada-n [284]

Answer:

=1.666 liters

Explanation:

1 mole of a has at standard temperature and pressure occupies a volume of 22.4 liters.

0.5 moles of nitrogen occupy a volume of (0.5 moles×22.4 dm³/mol)/ 1

=11.2 liters.

Standard pressure= 1 atmosphere (Atm)

Standard temperature = 273.15 Kelvin

According to Combined gas equation, P₁V₁/T₁=P₂V₂/T₂

Let us take the conditions under standard conditions as the reference, with the subscript 1 and the conditions under the 5L container to be scenario 2 with subscript 2.

Therefore P₂ =P₁V₁T₂/T₁V₂

Substituting for the values we get:

P₂= (1 atm× 11.2L ×203K)/ (273K×5L)

=1.666 atm

5 0
4 years ago
What is a way in which nuclear fusion is used?
Marta_Voda [28]

Answer:It is a nuclear process, where energy is produced by smashing together light atoms. It is the opposite reaction of fission, where heavy isotopes are split apart.

Explanation Fusion is the process by which the sun and other stars generate light and heat.

It’s most easily achieved on Earth by combining two isotopes of hydrogen: deuterium and tritium. Hydrogen is the lightest of all the elements, being made up of a single proton and a electron. Deuterium has an extra neutron in its nucleus; it can replace one of the hydrogen atoms in H20 to make what is called “heavy water.”

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Which properties make a metal a good material to use for electrical wires? malleability and reactivity conductivity and ductilit
Schach [20]
The metal properties that make up electrical wires are conductivity and ductility. Conductivity is important for free electrons to flow, hence electricity. Ductility is as well integral for strips to be formed, but with ample strength that does not break the material.
3 0
3 years ago
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Define renewable and nonrenewable resources and give 3 examples
liubo4ka [24]
Renewable resources are resources that can be used repeatedly. Examples are wood, wind power, and solar energy.

Nonrenewable resources are resources that cannot be replaced naturally. Examples are oil, coal, and minerals. 
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3 years ago
Can the work output of an engine be greater than the source of energy.
Arlecino [84]

Answer:

no

Explanation:

the output can never be greater than the input

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3 years ago
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