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Verizon [17]
3 years ago
6

If a student measured an object's density to be 2.70 g/mL, 2.32 g/mL, 2.12 g/mL and 3.88, then his results would considered ____

__The object's actual density is 3.50 g/mL A. Accurate and precise B.Precise but not accurate C. Neither accurate nor precise D.Accurate but precise
Chemistry
1 answer:
ValentinkaMS [17]3 years ago
5 0

Answer:

C. Neither accurate nor precise

Explanation:

  • The student's results would be considered precise if they were close to one another. However they vary significantly from one another.
  • Regarding accuracy, they would be considered accurate if they were close to the actual value. The given results are too far away from the actual value.

Thus the results are neither accurate nor precise.

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Gold (Au) is considered a(n)<br><br><br> Compound<br><br> Potatoes<br><br> Mixture<br><br> Element
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Answer:

Element

Explanation:

The symbol for gold is Au which only has one capital letter. This means that there is only one thing that makes up gold which would make it an element.

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What's the difference between a conductor and an insulator?<br><br>I'll mark you as brainliest ​
irina [24]

conductor are defined as the materials or substances that allow electricity to flow through them. Also, conductors allow heat to be transmitted through them. Examples of conductors are metals, the human body, Earth and animals. The human body is a strong conductor.

Any material that keeps energy such as electricity, heat, or cold from easily transferring through is an insulator. Wood, plastic, rubber, and glass are good <em><u>insulator</u></em><em><u>.</u></em>

Explanation:

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8 0
3 years ago
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Where can you find the information needed to change grams of a substance to moles?
vlada-n [284]
Oxidation numbers is the right answer 
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3 years ago
Question 5 of 10
OverLord2011 [107]

Answer:

4.2  g  

Explanation:

The VOLUME of the ring is   4.2 - 4.0 = .2 ml  = .2 cm^3

the MASS of the ring is this times the density

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4 0
2 years ago
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An alkene with the molecular formula C8H16 undergoes ozonolysis to yield a mixture of (CH3)2C=O and (CH3)3CCHO. The alkene is:
aalyn [17]

Answer:

2,4,4-trimethyl-2-pentene yields mixture of (CH_{3})_{2}C=O and (CH_{3})_{3}CHO

Explanation:

In ozonolysis (hydrolysis step involve a reducing agent such as Zn, Me_{2}S etc.), a pi bond is broken to form ketone/aldehyde.

Ketone is formed from di-substituted side of double bond and aldehyde is formed from mono-substituted side of double bond.

Ozoznolysis involves two consecutive steps : (1) formation of ozonide, (2) hydrolysis of ozonide.

Hydrolysis can be done with/without using reducing agent. Carboxylic acid/carbon dioxide/ketone is produced when hydrolysis is done without using reducing agent.

Here, 2,4,4-trimethyl-2-pentene yields mixture of (CH_{3})_{2}C=O and (CH_{3})_{3}CHO

Reaction steps are shown below.

8 0
3 years ago
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