Answer:
vague symptoms are characteristic of an acute toxin, because of the of the lack of well defined consistency that these symptoms have in relation to the course of the disease progress.
They can<span> be broken into simpler substances by chemical </span>means if i'm not mistaken
Answer: Heat required for 17.3 g of water to completely melt will be 5.785 kJ.
Explanation: Heat of fusion is defined as the amount of heat require to change the state from solid to liquid for 1 mole of solid at its melting point. It is expressed as 
We are given 17.3 grams of water. So, to convert it into moles, we use the formula:

Molar mass of water = 18g/mol
Putting values in above equation, we get:

Moles of water = 0.961 moles
For 1 mole of water, heat of fusion is 6.02kJ/mol
So, for 0.961 moles of water, heat of fusion will be = (0.961 moles × 6.02 kJ/mol) = 5.785 kJ