CHEMISTRY HIGH SCHOOL

Solutions of aluminum nitrate and sodium sulfate react to form sodium nitrate and aluminum sulfate. Classify this reaction.2Al(NO3)3(aq) + 3Na2SO4(aq) → Al2(SO4)3(s) + 6NaNO3(aq)
A) Synthesis
B) Decomposition
C) Double Replacement
D) Single Replacement
I choose C was wondering if I was correct

Answers

Answer 1
Answer: C is the correct answer. Double displacement reaction, also called as metathesis, is a type of reaction wherein two compounds react to form new compounds. This case the cations and the anions of the reactants replace each other forming the new compounds.
Answer 2
Answer:

Answer:

C:  Double Replacement

Explanation:

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What volume, in Liters, of a 2.00 M KCl solution contains 2.5kg of KCl? Molar mass of KCl= 74.55g/mole

Answers

According to the molar concentration, volume in liters of 2 M KCl solution is 16.76 L.

What is molar concentration?

Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.

The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.

In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.

Volume required is obtained by molarity formula as, 2×74.55/2500=1/V=0.05964

∴V=1/0.05964=16.67 L.

Thus, 16.67 L of  2 M KCl solution contains 2.5 kg of KCl.

Learn more about molar concentration,here:

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C_(m)=(n)/(V_(r))\n\nn=(m_(s))/(M)\n\nC_(m)=(m_(s))/(MV_(r)) \ \ \ |*MV_(r)\n\nC_(m)MV_(r)=m_(s) \ \ \ |:C_(m)M\n\nV_(r)=(m_(s))/(C_(m)M)\n\n\nm=2.5kg=2500g\nM=74.55(g)/(mol)\nC_(m)=2(mol)/(L)\n\nV_(r)=(2500g)/(2(mol)/(L)*74.55(g)/(mol))\approx16.77L

The periodic table is based on an element's A. atomic mass.
B. atomic number.
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Answers

Well, TECHNICALLY, the periodic table is "based" upon a whole myriad of characteristics. But if you're talking about the consecutive arrangement of elements...it would be B, the atomic number.

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Answers

Answer:

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Answers

Hi There!

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Answers

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Answers

Answer: b. Biomass

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The answer is biomass
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