Answer:
Chemical, cause physical are changes affecting the form of a chemical substance, but not its chemical composition. This doesn't affect the substance but the composition.
Explanation:
Answer:
Not necessarily
Explanation:
In the event of incresing the temprature it is not necessary that the solubility will increase always. Solubility of solids increases but solubility of gases dectreases on increases the temprature.
In solid solubility may remain unchange on increasing the temprature. This happens due to the fact that on increasing the temprature the mobility of substances increases due to thus the solubility increases.
Because copper has a higher electrical and thermal conductivity than iron and is not susceptible to oxidation as easily.
Answer:
2. A
3.B
4.B
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