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Kryger [21]
3 years ago
11

A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate t

his solid from the solution?
Chemistry
2 answers:
Sliva [168]3 years ago
8 0
<span>The appropriate response is filtration. Filtration is any of different mechanical, physical or organic operations that different solids from liquids by including a medium through which just the liquid can pass. The liquid that goes through is known as the filtrate</span>
r-ruslan [8.4K]3 years ago
8 0
<span>The correct answer would be "filtration". It's a process that has operations that separate solids from fluids. This is done simply by adding a medium through which only the fluid can pass. After the fluid passes through a certain medium it it's called a filtrate. </span>
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5) answer is A
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Answer:

A)  positive; added

Explanation:

Based on the reaction:

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<em>2 moles of NaHCO3 requires 129kJ to produce 1 mole of Na2CO3, 1 mole of H2 and 1 mole of CO2.</em>

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That means, the energy must be added being, thus, an exothermic reaction. The exothermic reactions have ΔH >0.

Thus, right answer is:

A)  positive; added

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