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2 years ago

Calculate the mass in carbon units respectively: 7K , 12Si , 15P

Chemistry

1 answer:

Snezhnost [94]2 years ago

5 0

Answer:

cacqcqcqcacacacacaccacqcacacacqcq

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State two types of plastics and their uses.

Svetllana [295]

Thermoplastic and thermosetting

thermoplastic:- they are easily molded and extruded into films, fibres and packaging.For eg. PVC

thermosetting:-they are hard and durable and can be used for aircraft parts,tires and auto parts .For eg. phenolic resins.

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7 0

1 year ago

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1. Marisa determined the melting point of a substance to be 24.5C. Find the percent error of her measurement if the actual melti

USPshnik [31]

Answer:

$\%\ Error = 21.5\%$

Explanation:

Given

$Measured = 24.5$

$Actual = 31.2$

Required

Determine the percentage error

First, we need to determine the difference in the measurement

$Difference = |Actual - Measured|$

$Difference = |31.2 - 24.5|$

$Difference = |6.7|$

$Difference = 6.7$

The percentage error is calculated as thus:

$\%\ Error = \frac{Difference * 100\%}{Actual}$

$\%\ Error = \frac{6.7 * 100\%}{31.2}$

$\%\ Error = \frac{670\%}{31.2}$

$\%\ Error = 21.4743589744\%$

$\%\ Error = 21.5\%$ approximated

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3 years ago

Why do some athletes use anabolic steroid and what are the side effects of using anabolic steroids

Galina-37 [17]

Some athletes use anabolic steroids in order to make their performance better, but the side effects are destroyed testicles, bad vision, bad sleeping habits, bald head.
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3 years ago

Four students measure the length of a paper clip whose actual length is 3.2 cm. whose measurements are precise but not accurate?

Bingel [31]

Answer:

A. Samuel

Explanation:

although he is not right he gets the same measurement several times

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3 years ago

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What is the most abundant chemical element in the universe?

Len [333]

hydrogen is the most

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3 years ago