Answer:
The aspirin is more soluble in ethanol than water - the water helps the crystals separate from solution.
Explanation:
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Answer:
Aluminum, boron, and gallium are likely together in one group because they have the same number of valence electrons, and carbon and germanium are likely together in another group because they have the same number of valence electrons.
Explanation:
Answer:
3000 kJ/kg
Explanation:
The calorific value of a substance is the amount of heat produced per unit mass by the combustion of the substance.
It is given by:
![C=\frac{Q}{m}](https://tex.z-dn.net/?f=C%3D%5Cfrac%7BQ%7D%7Bm%7D)
where
Q is the amount of heat released
m is the mass of the fuel
In this problem, we have:
m = 60 kg is the mass of fuel
is the amount of heat released
Therefore, the calorific value of the fuel is:
![C=\frac{180,000}{60}=3000 kJ/kg](https://tex.z-dn.net/?f=C%3D%5Cfrac%7B180%2C000%7D%7B60%7D%3D3000%20kJ%2Fkg)
Answer:liquid= _________ than the next ________ is heat
Explanation: