Hello there.
<span>
Some elementary particles are positively or negatively
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b. charged particles.
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200 calories.
Explanation:
The (latent) heat of fusion of a material, is either one of:
1) the heat required to melt the material without
temperature change or
2) the heat removed from the material to freeze it
without temperature change.
For water this latent heat is 80 cal/g. Multiply this by
2.5 g to get 200 cal.
The end result will be inaccurate as the concentration of the acid or base being calculated will be more concentrated than it actually is due to the endpoint being surpassed
a b c d no a no b yes c no d ok