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Ivan
3 years ago
8

What is wrong with the name (in parentheses) for each of the following compounds: (a) BaCl2 (barium dichlo- ride), (b) Fe2O3 [ir

on(II) oxide], (c) CsNO2 (cesium nitrate), (d) Mg(HCO3)2 [magnesium(II) bicarbonate]
Chemistry
1 answer:
otez555 [7]3 years ago
6 0

Answer:

BaCl2-- Barium dichloride✔️, the dash (-) has the problem.

Fe2O3-- Iron(iii)oxide✔️, it's not Iron(ii)oxide.

CsNO2-- it's Cesium nitrogen dioxide✔️, not Cesium nitrate.

Mg(HCO3)2-- Magnesium hydrogen carbonate✔️, not magnesium(II) bicarbonate

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

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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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