a.) The lead (2) oxide colour changes from yellow to grey. Water vapour formed condenses in the U tube and a gas is collected in the gas jar.
b.) A strip of cobalt chloride paper was dipped into the liquid and it changed it's colour from blue to pink.Thus indicating that the liquid collected in the U tube isvwater.
c.) Water.
d.) 2NH3(g)+ 3PbO(s) —> 3Pb(s) + N2(g) + 3H2O (l)
eddynightsy answered the question on April 17, 2018 at 22:56
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