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Alexandra [31]
4 years ago
12

Which of the following groups of elements are included in the main group of elements?

Physics
2 answers:
kozerog [31]4 years ago
5 0

Answer:

alkali metals,

halogens

non metals

Explanation:

The following groups of elements are included in the main group of elements, listed above.

DedPeter [7]4 years ago
3 0
Alkali metals 
Nonmetals
<span>Halogens</span>
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Which of these has the least chemical energy?
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The answer is option D a gallon of gasoline.

Explanation:

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Gasoline has chemical potential energy stored in chemical bonds. Gasoline is called as gas or petrol, mixture of volatile, flammable liquid hydrocarbons are used as fuel for internal- combustion engines. It is used as solvent for oils and fats.

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An object is accelerating at 2m/s^2. What is the net force if the mass is 125kg?
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Answer:

250 N

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3 years ago
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Crust describes the outermost shell of a terrestrial planet. Earth’s crust is relatively thin, just 40-kilometers (25-miles) dee
Anni [7]

Answer:

"Crust" refers to a

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