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Delvig [45]
3 years ago
8

Calvin is practicing for a golf tournament. His normal driver distance is 250 yards. He hits three balls with his driver, and th

ey travel a distance of 270 yards, 273 yards, and 269 yards. Which of the following is true?
Chemistry
1 answer:
Oduvanchick [21]3 years ago
3 0

Answer:

This question is incomplete as it lacks options; the options are:

A. His drives are both accurate and precise

B. His drives are precise but not accurate

C. His drives are accurate but not precise

D. His drives are neither accurate nor precise

The correct answer is B. His drives are precise but not accurate

Explanation:

The accuracy of a measurement refers to how close those measurements are to a true or accepted value. Note that, in this case, the normal driver distance of 250 yards is the TRUE OR ACCEPTED VALUE. Observing the three measured values for the driver's distance; 270 yards, 273 yards, and 269 yards, one would notice that these values are far apart from the true value of 250yards. Hence, these measurements are NOT ACCURATE.

On the other hand, PRECISION refers to how close measurements are to one another. In this case, 270yards, 273 yards, 269 yards are close to one another, hence that are said to be PRECISE.

Therefore, according to the measurements, it can be said that HIS DRIVES ARE PRECISE BUT NOT ACCURATE

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kirza4 [7]

Answer:

0.508 L of solution.

Explanation:

Always a safe bet to convert to moles:

n= {m \over MM}\\

Where n is moles, m is mass, and MM is molar mass.

Now remember the equation for concentration (molarity):

C={n \over V}

Where C is the concentration, n is moles, and V is volume.

To make this easy, combine the two equations (note n appears in both, so you can do a substitution) and solve for V as the question asks:

C={m \over MM \times V}\\0.52={36.5 \over 138.2 \times V}\\V={36.5 \over 138.2 \times 0.52}\\V=0.508

Therefore we can make 0.508 L of solution.

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3 years ago
Lorek lives near the North Pole. The snow in his backyard adds water to the atomosphere through______.
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Your question was:Lorek lives near the North Pole. The snow in his backyard adds water to the atomosphere through______.
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In a solution, what is the substance that does the dissolving called?
Soloha48 [4]

Answer and Explanation:

The substance that does the dissolving (or dissolves in the solution) is the <u>solute</u>.

- The solute is the substance that is being dissolved

The substance that makes the solute dissolve is called the <u>solvent.</u>

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1.50 × 104 J of energy is transferred thermally into a huge tank filled with liquid water. The water temperature remains constan
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Explanation:

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