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What would be observed in the addition of barium nitrate to magnesium sulfate? What about for barium nitrate and postassium iodide?

Answer 1

Olivia Anton

Macroscopic changes depend on solubility equilibria.

Magnesium sulfate and barium nitrate:

#Ba(NO_3)_2(aq) + MgSO_4(aq) rarr BaSO_4(s)darr + Mg(NO_3)_2(aq)#

Barium sulfate precipitates as a white solid and is largely insoluble in water.

Potassium iodide and barium nitrate:

Both metathesis products, #BaI_2# and #KNO_3# are soluble species. Nitrates tend to be soluble. So no macroscopic change.

Lead and barium nitrates: no discernible changes.

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Answer 2

Avery Adams

The addition of barium nitrate to magnesium sulfate would result in the formation of a white precipitate of barium sulfate. When barium nitrate is added to potassium iodide, a yellow precipitate of barium iodide is formed.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.