Question

-CHM-1050-A - Basic Chemistry 1.00 mol of neon has a mass of Select one: O A. 20.2 g OB. 1.009 OOO O E. 14.00 In this set of chemical reactions, which is a single replacement reaction? Select one: O A. CuSO4(aq) + BaCl2(aq) → BaSO4(s) + CuCl2(aq) B. Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) OC. Pb(NO3)2(aq) + 2NaCl(aq) → PbCl2(s) + 2NaNO3(aq) D. AgNO3(aq) + NaCl(aq) ► AgCl(s) + NaNO3(aq) E. K2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2Cl(aq) Finish attempt...

Answer 1

sol:-

1):-

• atomic mass of neon = 20.2 g/mol.

for 1.00 mole of neon,  

mass of neon = (atomic mass of neon)*(mole of neon)

= (20.2 g/mol.) * ( 1.00 mol)

= 20.2 g

mass of neon = 20.2 g

2):- single replacent reaction = A reaction of type A + B-C $\rightarrow$ A-C + B is called single replacement reaction . in this reaction a single element replace a less reactive element from their compound. so,

single replacement reaction :-

Zn(s) + H2SO4(aq) $\rightarrow$ ZnSO4(aq) + H2(g)

other remaining reaction is double replacent reaction of the type

A-B + C-D  $\rightarrow$ A-D + C-B