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butalik [34]
3 years ago
7

What is the difference between a substance at low temperature and one at high temperature

Chemistry
1 answer:
givi [52]3 years ago
4 0

Answer:

Explained below.

Explanation:

A substance at low temperature simply means that the average energy of molecular motion in that substance is low while at higher temperature, the average energy of molecular ml tip in that substance is high.

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The atomic number tells the number of protons.
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4 years ago
When adding the measurements 42.1014 g + 190.5 g, the answer has ___ significant figures.
andrezito [222]

Answer: The answer has 7 significant figures

Explanation:

 The addition of  190.5  and 42.1014 will give 232.6014.  Counting the digits will give 7 significant figures.

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Word Bank: Match each term with the sentence below
Ymorist [56]

Answer:

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3 years ago
What is the relationship between the number of carbon atoms in hydrocarbon at its boiling point ?
saveliy_v [14]
  • If no of carbon atoms be C
  • Boiling point of compound be BP

So

\\ \tt\longmapsto C\propto BP

  • No of carbon atoms is directly proportional to the boiling point of the compound.
  • If no of carbon atoms increases in a hydrocarbon the length of carbon chain also increases and all carbons get wrapped around themselves.
  • Which causes increase in boiling point of compound.

Look the table below for the boiling points of some alkanes

\boxed{\begin{array}{c|c}\boxed{\bf Alkane}&\boxed{\bf Boiling point}\\ \sf CH_4&\sf -164°C \\ \sf C_2H_6 &\sf -88.6°C \\ \sf C_3H_8&\sf 42.1°C \\ \sf C_4H_{10} &\sf -0.5°C \\ \sf C_5H_{12} &\sf 36.1°C \\ \sf C_6H_{14} &\sf 68.9°C \\ \sf C_7H_{16} &\sf 98.4°C \\ \sf C_8H_{18} &\sf 125.7°C \\ \sf C_9H_{20} &\sf 150.4°C \\ \sf C_{10}H_{22} &\sf 150.7°C \end{array}}

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2 years ago
Question is in photo! Will give BRAINLIEST to whoever answers correctly first!
jek_recluse [69]

Answer:

A new element

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As you add mopre and more protons and electrons and neutrons it keeps on crating new.

5 0
3 years ago
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