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Vikentia [17]
3 years ago
11

I need help please I dont understand this ​

Chemistry
2 answers:
Bas_tet [7]3 years ago
7 0

Answer:

I think its B

Explanation:

Ba+2 + 2Cl- + 2Na+ + SO4- ----> BaSO4 is not soluable so you can't break that up.

BaSO4 (s) + 2 Na+ + 2Cl-

Snezhnost [94]3 years ago
6 0

Answer:

b

Explanation:

bbbbbbbbbbbbbb

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8 0
2 years ago
When pure methanol is mixed with water the resulting solution feels warm would you expect this solution to be ideal?Explain
Pepsi [2]

Answer:

No

Explanation:

In ideal solutions, the interactions between solute - solvent are approximately the same as those of solute - solute and solvent - solvent, that is the interactions are to be practically indistintiguishable after disolution.

The moment we have a release of energy (the solution feels warm) we are to conclude that there are strong interactions between the water and methanol molecules so we would expect the solution to be non ideal.

The reason for the interactions is the presence of hydrogen bonds between methanol and water.

5 0
3 years ago
Deprenyl is an enzyme inhibitor that helps prevent the metabolism of dopamine in the brain. The chemical formula of Deprenyl is
mel-nik [20]

Answer:

0.007 g of deprenyl dose is required fro the patient with body mass of 70 kilograms.

Explanation:

The dose for treating Parkinson’s disease = 100 μg/kg body weight

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1 μg = 0.00001 g

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0.007 g of deprenyl dose is required fro the patient with body mass of 70 kilograms.

6 0
3 years ago
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aev [14]
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