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ser-zykov [4K]
3 years ago
9

A double-replacement reaction takes place when aqueous k2so4 reacts with aqueous pb(no3)2. you would expect the products of this

reaction to be ______ and _____.
Chemistry
2 answers:
SpyIntel [72]3 years ago
8 0
A double replacement is when the reactants switch with their opposite charge. For example, AB + CD = AD + BC.

In this case the given is K2SO4 + Pb(NO3)2 = ____ + ____

The answers is PbSO4 and KNO3 would expect the products of this reaction.
ella [17]3 years ago
6 0

Answer:

The products are PbSO₄ and KNO₃

Explanation:

Double replacement reaction, also called double displacement reaction is a type of reaction in which the two reactants exchange there cations or anions as represented below

AB + CD ⇒ AD + CB

The reaction provided in the question is expected to produce the products shown below

K₂SO₄ + Pb(NO₃)₂ ⇒ PbSO₄ + 2KNO₃

As you can see from the equation above, both potassium (K) in K₂SO₄ and lead (Pb) in Pb(NO₃)₂ exchanged there positions hence the reaction is a double displacement which formed PbSO₄ and KNO₃

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Which statement best explains why magnesium and chlorine combine in a 1:2 ratio?
denpristay [2]

The statement that best explains why magnesium and chlorine combine in a 1:2 ratio is; Magnesium has two valence electrons, and chlorine can accept one electron in its outer shell.

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8 0
2 years ago
A chemist heats 100.0 g of FeSO4 x 7H2O in a crucible to drive off the water. If all the water is driven off, what is the mass o
Ierofanga [76]
FeSO₄*7H₂O(s) = FeSO₄(s) + 7H₂O(g)

M(FeSO₄*7H₂O)=278.0 g/mol
M(FeSO₄)=151.9 g/mol

m(FeSO₄*7H₂O)/M(FeSO₄*7H₂O)=m(FeSO₄)/M(FeSO₄)

m(FeSO₄)=M(FeSO₄)m(FeSO₄*7H₂O)/M(FeSO₄*7H₂O)

m(FeSO₄)=151.9*100.0/278.0=54.6 g

m(FeSO₄)=54.6 g


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3 years ago
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