I think the correct answer from the choices listed above is option B. The reactants calcium sulfide and sodium sulfate will react and form a precipitate which is calcium sulfate since it is only slightly soluble in aqueous solution. Hope this answers the question.
Answer:
Approximately 
.
Explanation:
Look up the specific heat of gaseous neon:
.
Calculate the required temperature change:
.
Let 
denote the mass of a sample of specific heat 
. Energy required to raise the temperature of this sample by 
:
.
For the neon gas in this question:
Calculate the energy associated with this temperature change:
.
Moves from the atmosphere to the oceans
The magnitude of a star as it would appear to a hypothetical observer at a distance of 10 parsecs or 32.6 light-years. This rates how visible celestial bodies are when they are all viewed from the same distance. Luminosity: The brightness of a star in comparison with that of the sun.
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