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When aqueous barium chloride is added to a solution containing sulfate ions a white precipitate is formed. i)Write the ionic equation for the formation of this precipitate.

Ba 2+ (aq) +SO 4 2- (aq) ---->BaSO 4(s)
JM
Answered by Josh M. • Chemistry tutor
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What is bond polarity and why does it exist?

To understand bond polarity, you first must understand electronegativity. Electronegativity is the ability of the nucleus of any atom to attract electrons from another atom, it is dependant on the nuclear ch...
CM
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Why is zinc not considered a transition metal?

The electron configuration of zinc is [Ar]4s 2 3d 10 . The only oxidative state which zinc has is Zn 2+ in which its configuration is [Ar] (4s 0) 3d 10 , as the 4s sub-level empties first. The definition of ...
NS
Answered by Niall S. • Chemistry tutor
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Assuming 100% yield, calculate the maximum volume of ammonia that could be produced from 1200dm3 of hydrogen, measured at room temp and pressure.

Okay so first always write out the equation...N 2 (g) + 3H 2 (g) ⇌ 2NH 3 (g)Now we need to ask ourselves what equations we know are relevant to the question. The question gives us a volume and states the con...
EB
Answered by Emma B. • Chemistry tutor
7893 Views

What is fractional distillation used for in industry? Explain the molecular basis behind it.

Separating different sized hydrocarbons (from crude oil)Different length hydrocarbons have different strength VDW forces between their moleculesTherefore longer length hydrocarbons have stronger VDW forces b...
NG
Answered by Nick G. • Chemistry tutor
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