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Usimov [2.4K]
3 years ago
6

What element marks the boundary between using fusion and fission to release energy?

Chemistry
1 answer:
frez [133]3 years ago
3 0

Answer:

matter

Explanation:

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The correct awser is the D/the 4th one
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4 years ago
When a candle is lit and allowed to burn for 15 minutes, some wax drips and collects at the base of the candle, and the candle b
stellarik [79]

Answer:

The missing section of the candle burns away and evaporates while some drips and collects at the base.

Explanation:

This is because a chemical reaction is occurring due to the heat, causing the molecule in the candles wax to move around faster and faster therefore causing melting.

8 0
4 years ago
Which of these statements describes a physical property of hydrogen? Group of answer choices it is found in acids. it is less de
pochemuha

Answer:

it is less dense than oxygen gas.

Explanation:

Hydrogen is the simplest chemical element that exists. The symbol for the chemical element Hydrogen is "H" and it is a colourless, tasteless, odorless, and highly flammable gas.

Hydrogen is a chemical element found in group (1) of the periodic table and as such it has one (1) electrons in its outermost shell. Therefore, Hydrogen has an atomic number of one (1) and a single valence electrons because it has only one proton and one electron in its nucleus.

In Chemistry, the properties of a chemical element that can be observed and measured without changing its chemical nature is known as a physical property. It includes density, color, freezing point, opacity, smell, melting point, viscosity, etc.

Hence, the statement which describes a physical property of hydrogen is that it is less dense (density) than oxygen gas.

7 0
3 years ago
Which process turns sediment into sedimentary rock?
MArishka [77]

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Explanation:

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What is the empirical formula of a compound containing 90 grams carbon, 11 grams hydrogen, and 35 grams nitrogen? (5 points)
konstantin123 [22]
C3 H4 N1 ~~that’s what I think
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3 years ago
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