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ololo11 [35]
3 years ago
15

Balance chemical equation Fe3O4 = Fe + CO2

Chemistry
1 answer:
m_a_m_a [10]3 years ago
5 0

equation Fe3O4=Fe+CO2 is an impossible reaction

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How many milliliters of gasoline have a mass of 2.4 kg ( D=0.74g/mL )?
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2 years ago
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Heat the oxygen to about 150 K. What state of matter is this?
adelina 88 [10]

Answer:

  • <u>Gas</u>

Explanation:

It is easier if you convert the kelvin temperature into Celsius degrees:

  • ºC = T - 273.15 = 150 - 273.15 = -123.15ºC

Now, you know that that is a very cold temperature. Thus, may be the oxygen is not gas any more but it changed to liquid . . . or solid?

You must search for the boiling point and melting (freezing) point of oxygen in tables or the internet. At standard pressure (about 1 atm) they are:

  • Melting point: −218.79 °C,
  • Boiling point: −182.962 °C

That means that:

  • below -218.79ºC oxygen is solid (not our case).
  • between -218.79ºC and -182.962ºC oxygen is liquid (not our case)
  • over -182.962ºC oxygen is a gas. This is our case, because -123.15ºC is a higher temperature than -182.962ºC.

Hence, <em>the state of matter of oxygen at 150K</em>, and standard pressure, is gas.

3 0
2 years ago
What mass of calcium chloride will be produced from 4.09 g of hcl reacting with ca(oh)2
natka813 [3]
5.52g Calcium Chloride
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3 years ago
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