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Afina-wow [57]
3 years ago
7

Suppose you have an ice cube with mass of 8.00 g at a temperature of 295 K. If that ice cube is heated until it is completely co

nverted to steam at 373 K how many joules of heat must be added ?
Chemistry
1 answer:
katen-ka-za [31]3 years ago
4 0

Explanation:

In order to be able to answer this question, you must know the value of water's enthalpy of fusion, ΔHfus

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1. A mixture contains 8.00 g each of O2, CO2, and SO2 at STP. Calculate the volume of this mixture. Which of the gases would exe
Gekata [30.6K]

Answer:

Explanation:

mole of O₂ = \frac{8}{32}

= .25 moles

mole of CO₂

= \frac{8}{44}

= .1818 moles

moles of SO₂

\frac{8}{64}

= .125 moles

Total moles of gas

= .5568 moles.

total volume of gas mixture

= 22.4 x .5568 liter ( volume of one mole of any gas = 22.4 liter)

= 12.47 liter.

gas will exert partial pressure according to their mole fraction

gas having greatest no of moles in the total mole will have greatest mole fraction so

O₂ will have greatest partial pressure.

7 0
3 years ago
Atoms of the element beryllium would most likely behave similar to the way _______ behaves.
jasenka [17]
I would say a. lithium but i am not sure.
7 0
3 years ago
Which of the following statements explains how the fossil record provides evidence that evolution has occurred?
olasank [31]
I think it will be letter A tbh
Hope this helps you out
7 0
3 years ago
Imagine that you mixed 25 mL of water at 0 C and 25 mL of water at 50 C.
Zepler [3.9K]
Q=mcdeltaT. use this formula and find the answer.

7 0
3 years ago
Antoinc Laurent Lavoisicr's contribution to chemistry was. a.the law of conservation of mass.
Ulleksa [173]

The answer for the following question is explained below.

The option for the following answer is "d".

Explanation:

The phlogiston theory of combustion:(Greek word phlogiston means <u><em>"BURN"</em></u>)

Phlogiston theory states that phlogisticated substances are the substances that contain  phlogiston and dephlogisticate when burned.

Dephlogisticating is the process of releasing  stored phlogiston,which is absorbed by the air.

Growing plants then absorb this phlogiston,which is why air does not spontaneously combust and also plant matte burns as well as it does.

The prevailing theory was that flammable materials contained a substance called phlogiston that was released during the combustion.

For example:

  • phlogiston was transferring into the surrounding air.
8 0
3 years ago
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