Question

18. What substance is the flammable chemical in a “metal fire?” (a) The oxidized form of the metal (b) The reduced form of th
18. What substance is the flammable chemical in a "metal fire"
The oxidized form of the metal
The reduced form of the metal
Hydrogen gas
Superheated water

19. What class of organic lolecules is profuced when an organic acid anhydride reacts with water?
Ketone
Aldehyde
Carboxylic Acid
Ether

20. Why are very high concentrations of some acids considered water reactive?
They are able to protonate H3O+ to H4O2+
Very high solvation energies can lead to a violent reaction
The acids are able to oxidize the water
None of the above
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Answer #1

18) Hydrogen gas is flammable on metal fire. H2 is colorless, odourless highly flammable gas

19) When acid anhydride reacts with water, corresponding carboxylic acid is formed. Example is given as follows,con

20) when the acid is added to water, it breaks the intermolecular interaction between acid and water to form water acid bond, and the high solvation energies can leads to the violent reaction

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