In which set are both compounds soluble in water? Magnesium chloride (Mgcl_2) an
ID: 999172 • Letter: I
Question
In which set are both compounds soluble in water? Magnesium chloride (Mgcl_2) and octane ethanol (CH_2 CH_2 OH) and propane (CH_2 CH_2 CH_3) carbon hetrachloride (OCI_2) and magnesium chloride (MgCI_2) magnesium chloride (MgCI_2) and ethanol (CH_2 CH_2 OH) When potassium chloride, KCI, dissolves in water, which of these diagrams would best represent what you would exact to find in solution? Which is a precipitation reaction? 2Cr(x) + 6HNO_3(aq) rightarrow 2Cr(NO_3)_3(aq) + 3H_2(g) H_2 PO_2(aq) + 3 KOH(aq) rightarrow K_3 PO_4(aq) + 3H_2 O(x) 3 Ba(NO_3)_3(aq) + 2 Na_3 PO_4(aq) rightarrow Ba_3(PO_4)_2(x) + 6 NaNO_3(aq) NaHCO_3(aq) + HCI(aq) rightarrow NaCI_(aq) + CO_2 (x) + H_2 O(t) What is the net ionic equation for the reaction of aqueous solutions of Pb(NO_3)_2 and KCI? Pb^2-(aq) + CI^-(aq) rightarrow PbCI_2(x) Pb^2-(aq) + 2CI^-(aq) rightarrow PbCI_2(x) Pb(NO_3)_2(aq) + 2KCI(aq) rightarrow 2KNO_2(aq) + PbCI_2(x) 2K^-(aq) + 2CI^-(aq) A " Pb^2+(aq) + 2NO_3^- (aq) rightarrow 2K^-(aq) + 2NO_3^-(aq) + PbCI_2(x)Explanation / Answer
25) D
MgCl2 (ionic compound) is soluble in water.
Due to hydrogen bonding with water, ethanol C2H5OH is soluble in water.
Therefore, ans = D
27) In precipitation reaction, solid product will be formed.
Therefore, ans = c
28) B
In this raection, PbCl2 (s) will be formed from Pb2+ and 2Cl- but not Pb2+ , Cl-.
Therefore, ans = B
29) A
CH3- acts as base.
30) conjugate acid-base pairs:
N2H4 and N2H5+
H2O and OH-