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goldfiish [28.3K]
3 years ago
10

How is a compound different from an element 2.3 lesson check?

Chemistry
1 answer:
zavuch27 [327]3 years ago
4 0

<em>Answer:</em>

  1. Element: Element are pure substance consist of same type of atoms
  2. Compound: Form by combination of atoms of different elements.

<em>Distinguish features:</em>

  • Compounds represented by chemical formula while elements are represented by symbols.
  • Compounds have fixed ratios of atoms of different elements while in elements are distinguished by atomic no.
  • Compounds can be converted into simple substance by chemical methods but the elements cant be converted into simpler substance by means of chemical methods.

<em>Example:</em>

  • Water (H2O) is a compounds.
  • Iron (Fe) is an element.

<em>Summary:</em>

  • When two or more elements are mixed then compounds are formed.
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In a physical change the form changes or the state of the matter. For instance water can freeze and water can melt, but it is still water.

Please vote my answer brainliest! Thanks.
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Which state of matter is charcterized with no volume?
ziro4ka [17]

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7 0
3 years ago
What is the total volume occupied by 132 g of CO2 at STP
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4 0
3 years ago
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A student carefully placed 15.6 g of sodium in a reactor supplied with chlorine gas. When the reaction was complete, the student
BabaBlast [244]

Answer:

24.09 grams of chlorine gas reacted.

Explanation:

2Na(s)+Cl_2(g)\rightarrow 2NaCl(s)

Moles of sodium chloride = \frac{39.7 g}{58.5 g/mol}=0.6786 mol

According to reaction, 2 moles of  NaCl are formed from 1 mole chlorine gas.

Then 0.6786 moles of NaCl will be formed from;

\frac{1}{2}\times 0.6786 mole=0.3393 mol

Mass of 0.3393 moles of chlorine  gas:

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5 0
3 years ago
What is a zone of weak, variable winds located at 30 degrees north and 30 degrees south?
timurjin [86]

Answer:

Horse latitude, trade winds

Explanation:

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3 years ago
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