Answer:
Both Eddie and Val are correct because chemical energy is a type of kinetic energy and mechanical energy includes potential energy.
Explanation:
Answer:
Chemical Equation Balancer C15H31COOH+NaOH = C15H31COONa+H20
Explanation:
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Answer:
A.) DNA is a double helix, and RNA is a single strand.
C.) DNA is involved only in transcription, and RNA is involved in both transcription and translation.
E.) DNA does not have uracil as a nitrogen base, but RNA does have uracil as a nitrogen base.
Explanation:
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Answer:
Option D = Poor countries often cannot afford investments that ensure access to fresh water.
Explanation:
This question wants to test out knowledge on biodiversity and how the loss of water affects it. Fresh water is needed for plants to grow. Several activities by man such as the use of chemical and fertilizers been washed into the sea, oil spillage and so on causes the pollution of fresh water.
So, because of the great resources (money) of the wealthy countries they have access to good facilities as these countries make use of their money to make sure they are still having access to fresh water despite the pollution caused by man activities.
This separation technique is a 4-step procedure. First, add H₂SO₄ to the solution. Because of common ion effect, BaSO₄ will not react, only Mg(OH)₂.
Mg(OH)₂ + H₂SO₄ → MgSO₄ + 2 H₂O
The aqueous solution will now contain MgSO₄ and BaSO₄. Unlike BaSO₄, MgSO₄ is soluble in water. So, you filter out the solution. You can set aside the BaSO₄ on the filter paper. To retrieve Mg(OH)₂, add NaOH.
MgSO₄ + 2 NaOH = Mg(OH)₂ + Na₂SO₄
Na₂SO₄ is soluble in water, while Mg(OH)₂ is not. Filter this solution again. The Mg(OH)₂ is retrieved in solid form on the filter paper.
