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Studentka2010 [4]
3 years ago
13

What are elements?????????

Chemistry
2 answers:
g100num [7]3 years ago
8 0
A component or constituent of a whole or one of the parts into which a whole may be resolved by analysis
VLD [36.1K]3 years ago
5 0
Elements are a substance that can not be broken down into simpler substances by chemical means

Elements is composed of atoms that have the same number of protons in its nucleus as all other atoms of that element
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the difference between these two measurements: 60 m and 60.00 m How many sig figs does each contain? Clearly explain which digit
tensa zangetsu [6.8K]

This problem is providing two measurements, 60 m and 60.00 m and asks for the difference in the significant digits, accuracy, uncertainty, whether they are the same or not and how they differ.

<h3>Significant figures:</h3>

In chemistry, the use of significant figures is crucial, because they define the most appropriate way to report a measurement. Thus, we can say that the more decimals a measurement has, the more accurate and the less uncertain it is. Also, if no decimal places are present, tracking zeros are not significant.

In such a way, one can conclude that 60 m has just one significant figure (0 does not count) whereas 60.00 m has four  (there is a decimal making all zeros significant), 60.00 m is more accurate as more decimal places are reported. On the other hand 60 m is the more uncertain as less decimals contribute to its accuracy.

In addition, we say they can be the same measurement, as long as they represent the same idea, sixty meters, the thing is 60.00 m is more accurate yet they refer to the same measurement.

Learn more about significant figures: brainly.com/question/11904364

4 0
3 years ago
How was Aristotle’s model similar to Ptolemy’s model?
Vinvika [58]

The answer is that both models stated that Earth is the center of the system around which other objects orbit.  

That is Aristotle’s model similar to Ptolemy’s model in the way that both stated that Earth is the center of the system around which other objects orbit.  

Ptolemy’s model stated that Earth is the center of universe and other the sun, moon, planets, and stars revolving about it in circular orbits at increasing distance.  

Aristotle’s model stated that the Sun, the Moon, the planets, and the stars travel in different separate spheres. And music of the spheres can be listen when the spheres touch each other. can be heard. He proved that the Earth is spherical,also stated that it is the the center of the universe.

6 0
3 years ago
Read 2 more answers
Which of these is metamorphic rock formed from limestone? A.sandstone B.clay C.shale D.marble
Aleonysh [2.5K]
D. Marble caused by heat and lots of pressure.
7 0
3 years ago
Explain how the law of conservation of energy is obeyed in a food chain
kakasveta [241]
The law of conservation of energy states that energy cannot be created nor destroyed, but it transforms from one form to another.

this also applies in a food chain, for energy is decreased by 90% when moving down to the next animal (or trophic level), but it is not created nor destroyed, for the first source of energy in a food chain is always the sun, and the sun is an infinite source of energy
3 0
4 years ago
Read 2 more answers
An unknown element has chemical behavior similar to that of silicon (Si) and lead (Pb). The unknown element has a mass greater t
forsale [732]

Answer:

The answer to your question is Germanium

Explanation:

Process

Follow the clues to find the answer

1.- Behavior similar to that of Si and Pb.

Elements of the same group have similar properties so this element could be:

    Carbon, Germanium or Tin

2.- Mass greater than sulfur

     Sulfur has a mass of 32

     So, the element we are looking for could not be Carbon

3.- Mass less than Cadmium

     Cadmium has a mass of 48, so this element could no be Tin

4.- The element we are looking for is Germanium.

7 0
3 years ago
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