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just olya [345]
2 years ago
14

Compare and contrast the terms theory and hypothesis in science

Biology
1 answer:
IgorLugansk [536]2 years ago
7 0

Answer:

In scientific reasoning, a hypothesis is an assumption made before any research has been completed for the sake of testing. A theory on the other hand is a principle set to explain phenomena already supported by data.

Explanation:

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If 240 mL of water is added to 13 mL of 5.0 M NaCl solution,
zavuch27 [327]

Answer:

The correct answer is 0.26 M

Explanation:

The initial concentration of NaCl solution (Ci) is 5.0 M. The initial volume of the solution (Vi) is 13 mL. The final volume is the addition of 240 mL to 13 mL (Vf= 13 mL + 240 mL= 253 mL).

In order to calculate the final concentration of the solution (Cf) we can use the following expression:

Ci x Vi= Cf x Vf

This mathematical expression is often used to calculate concentrations in dilution procedures. So, we introduce Ci, Vi an Vf in the expression and we calculate Cf:

Cf= (Ci x Vi)/Vf= (5.0 M x 13 mL)/253 mL= 0.257 M ≅ 0.26 M

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Answer:

A

Explanation:

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2 years ago
What are the three parts that make an amino acid?
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A bucket of water and a cube of ice have different chemical properties. <br><br> true or false
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