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Feliz [49]
3 years ago
10

Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. Precision pertains

to all of the following except a. reproducibility of measurements. b. agreement among numerical values. c. sameness of measurements. d. closeness of a measurement to an accepted value.
Chemistry
2 answers:
Eduardwww [97]3 years ago
6 0
D.) closeness of a measurement to an accepted value
That is accuracy not precision.
malfutka [58]3 years ago
4 0

Answer:

closeness of a measurement to an accepted value.

Explanation:

Precision is when we are performing an experiment and taking multiple readings at the same time and we are getting the values close to each other or same. The experiment will be called as precised.

But if we are getting values of our experiment close to actual value or similar to actual value then the experiment will be accurate.

Thus reproducibility of measurements, agreement among numerical values and sameness of measurements are same and are associated with precision.

While closeness of a measurement to an accepted value pertains to accuracy.

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soldier1979 [14.2K]

Answer:

B

Explanation:

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3 years ago
A 50.0 mL solution of 0.133 M KOH is titrated with 0.266 M HCl . Calculate the pH of the solution after the addition of each of
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3 years ago
How many double bonds are in lewis structure of oxygen difluoride, OF2? 1,0, 2, or 3​
solmaris [256]

Answer:

0

Explanation:

An image of the lewis structure of the compound OF2 is shown in the image attached.

A Lewis structure is a structure in which electron pairs on atoms are shown as dots. Sometimes shared electron pairs are shown by a horizontal straight line connecting the two atoms involved.

OF2 has no double bonds as shown in its structure. It is a compound containing only two O-F sigma bonds and no pi-bonds.

5 0
3 years ago
Which of the following is not a clue that a chemical reaction has taken place? *
DaniilM [7]

Answer:

A pure solid is heated and turns into a pure liquid.

Explanation:

No colour change recorded, only change of state, hence this is a physical change - physical changes I.e. change of state and temperature are not chemical reactions.

7 0
3 years ago
Which type of substances have chemical bonds that are not directional and valence electrons that move freely between the atoms?
Wittaler [7]
I believe the correct answer from the choices listed above is option C. The type of substances that has <span>chemical bonds that are not directional and valence electrons that move freely between the atoms are metals. Hope this answers the question. Have a nice day.</span>
5 0
3 years ago
Read 2 more answers
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