1. The third option is the least soluble in water because it is the chain with the most number of hydrocarbons. Next is the second option while the first one is the most soluble.
2. Statements 1 and 2 are true. The third option is not true all the time because it depends on the structure of the compound.
C. boiling point
boiling point is the temperature at which all liquids change from liquid to gas
Salt can be classified as a pure substance as it is only composed of sodium chloride
while contain many other substances
2Al₂O₃ ----> 4Al + 3O₂
2 moles 3 moles
2 moles of Al₂O₃ ---------- 3 moles of O₂
26,5 moles of <span>Al₂O₃ ------ X
</span>X = (26,5×3)/2
<u>X = 39,75 moles</u> of O₂
:)
Answer:
H + ions are attracted to the cathode , gain electrons and form hydrogen gas. OH - ions are attracted to the anode , lose electrons and form oxygen gas.
