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Basile [38]
4 years ago
14

43.0 + 50.0 + 16.0= please answer with right amount of significant figures

Chemistry
1 answer:
zzz [600]4 years ago
8 0

Answer:

109.0

Explanation:

When adding or subtracting values, you must round your answer to the same "place" as the measurement with its last significant figure <em>furthest to the left</em>.  

That is, you round off to the same number of decimal places as the measurement with the <em>fewest decimal places</em>.

43.<u>0 </u>

50.<u>0</u>

<u>+16.0 </u>

109.<u>0</u>

In each measurement, the “0” is the significant figure furthest to the left, so you round off the number to the “tenths" place. That's the last column that the measurements share.

109.0 → 109.0 (rounded to the “tenths” place)

In other words, you do not round off, and the sum has four significant figures.

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ale4655 [162]

 The best example I can give that is observable but does not contain matter is:

sunlight or simply light

 

Light does not contain matter because it is a beam of energy or to be specific made up of packet of photons.

<span> </span>

6 0
4 years ago
Which metal ions can be precipitated out of solution as chlorides?a. Ag+, Hg2+, Co2+b. Cu2+, Cd2+, Bi3+ c. Ag+, Hg22+, Pb2+ d. N
Fudgin [204]

Answer:

Explanation:

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8 0
3 years ago
The particle that adds mass but no charge to the atomic nucleus is the
andrew-mc [135]

The particle that adds mass but no charge to the atomic nucleus is the neutron.

The nucleus contains both protons and neutrons.

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4 years ago
State Newton law of gravitation ?​
xeze [42]

Answer:

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That's the definition hope it helps.

7 0
3 years ago
How much volume (in cm3) is gained by a person who gains 12.3 lb of pure fat?
maks197457 [2]

Answer:

So we are given with the mass while we are asked for the amount of volume. So this means, we must need an information on the density. From literature, the density of human fat is 0.918 g/cm³. Convert grams to lb by the conversion that 1,000 g = 2.2 lbs.

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