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IRISSAK [1]
3 years ago
14

How can a scientist ensure that his or her data are reliable? by making a single observation

Chemistry
2 answers:
Virty [35]3 years ago
5 0
Hi!

We make sure data is reliable by repeating it over and over and over and over and over again! 

Repetition and replication <span>are </span>key, as the most constant consistent results we get - the more reliable the data is!

Hopefully, this helps! =)
alekssr [168]3 years ago
3 0
Having accurate  Specific date can give scientist what they need for more reliabliltiy.
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When a plant _____, roots grow and a seedling begins to grow?
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Answer:

stem

Explanation:

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2 years ago
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A student wants to measure the entropy of ice. What should the student do?
Helen [10]

Answer: Option (c) is the correct answer.

Explanation:

Entropy is defined as the degree of randomness. This means that more is the number of collisions taking place between atoms of a substance more will be the randomness.

Therefore, more will be the entropy of substance. We cannot measure the entropy but we can measure the change in entropy of a substance.

A thermometer is a glass tube that contains a liquid column generally mercury, and it is usually used to measure the temperature of human body.

A calorimeter is a device or apparatus that is used in a chemical reaction to measure the amount of heat involved.

Therefore, we can conclude that the student can't measure entropy directly, only an entropy change.

 

6 0
3 years ago
Please answer asp! Which term is defined as the phase change from gas to liquid?
drek231 [11]

Answer:

A

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Evaporation

5 0
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Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. Calculate the pH of a HNO3 solution hav
Alona [7]

Answer:

pH of HNO₃ having an hydrogen ion concentration of 0.71M is 0.149

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3 0
3 years ago
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Describe the radial velocity curve. What is its shape? What is its amplitude? What is the orbital period?
lutik1710 [3]

Answer:

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Explanation:

The radial velocity curve describes how fast a star is moving in its orbit around a center of mass ( m ) while Curve amplitude  is the maximum value of the radial velocity curve also The shape of Radial velocity curve is parabolic in nature. and  Orbital period is the time taken by the star  to make one complete rotation in its orbit

7 0
3 years ago
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