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kotykmax [81]
3 years ago
5

How are compounds Similar to elements and how are they different​

Chemistry
1 answer:
Yuki888 [10]3 years ago
3 0

Answer:

A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule.

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Balance this equation. If a coefficient of "1" is required, choose "blank" for that box. CO + O2 → CO2
liberstina [14]

Answer:

2co + o2 > 2co2

Explanation:

so that is tye answer

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4 years ago
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A snowflake contains 2.1 10^18 molecules of water. How many moles of water does it contain?
IgorC [24]

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3 years ago
Liquid hexane, C6H14, burns in oxygen gas to yield carbon dioxide and water. What is the minimum mass of oxygen required for the
Usimov [2.4K]

Answer: 46.6 grams

Explanation:

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Given : density of hexane = 0.660 g/ml

volume of hexane = 20 ml

Mass of hexane = {\text {density of hexane}}\times {\text {volume of hexane}}=0.660g/ml\times 20ml=13.2g

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2 moles of hexane reacts with 19 moles of oxygen

Thus 0.14 moles hexane will react with =\frac{19}{2}\times 0.15=1.45 moles of oxygen

Mass of oxygen =moles\times {\text {molar mass}}=1.45\times 32=46.6g

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