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Paha777 [63]
3 years ago
10

Models of airplanes have all

Chemistry
1 answer:
attashe74 [19]3 years ago
8 0

Answer:

Yes

Explanation:

Because, thats why they fly, you have to have certain parts and angles in order for the aircraft to fly.

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What is the name of the particle made up of 2 protons and 2 neutrons?
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In order to become a chemically stable ion, a neutral atom of sodium will _______.
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Why is it important for a scientist studying greenhouse effect to know about mater,forces and energy
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4 years ago
Samples with masses of 5.5 g 2.27 g and 0.8995 g are mixed together. The sum of the masses of the three
Nadusha1986 [10]

Answer:

m=8.7g

Explanation:

Hello,

In this case, it is widely known that when measurements with different significant figures are put under mathematical operations, the final result must be displayed with the same amount of significant figures of the shortest measurement, thus, due to the fact that 5.5 g has two significant figures only the result is consequently shown with two significant figures as well as shown down below:

m=5.5g+2.27g+0.8995g\\\\m=8.6695g

By rounding the first six to seven due to the fact that the next six is greater than five, according to rounding rules, the result is:

m=8.7g

Best regards.

3 0
3 years ago
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