The precipitate will be barium sulfate. The reaction is as follows:BaCl2(aq) + Na2SO4(aq) ==> 2NaCl(aq) + Ba(SO4)(s)
barium chloride
KBr (Potassium Bromide) is a ionic compound because a metal (potassium) is bonded to a nonmetal (bromine)
There's no reaction to be expected.
Mg 2+andS 2-Combine to make,MgSMagnesium sulfide.
Calcium reacts more easily with water than does magnesium, because calcium donates electrons to other elements more readily than magnesium, as expected for a larger atom in the same periodic table column on the left side of a wide form periodic table.
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It is an ionic and water soluble salt.
solid crystal
Ca2+ + 2 I- --> CaI2
a precipitate will form
Sugar may precipitate out upon cooling.
KBr (Potassium Bromide) is a ionic compound because a metal (potassium) is bonded to a nonmetal (bromine)
There's no reaction to be expected.
Mg 2+andS 2-Combine to make,MgSMagnesium sulfide.
Decomposition. Potassium is also very volatile so sparks are expected. This is a dangerous demonstration, so safety equipment must be worn, and only a tiny quantity of potassium used. Perhaps even in a Fume Cupboard.
Calcium reacts more easily with water than does magnesium, because calcium donates electrons to other elements more readily than magnesium, as expected for a larger atom in the same periodic table column on the left side of a wide form periodic table.
Potassium fluoride itself is an ionic compound, although it should not be present in other ionic compounds.
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