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astraxan [27]
1 year ago
13

Which elements on the periodic table are not reactive? Why?

Chemistry
2 answers:
iVinArrow [24]1 year ago
5 0

Answer:

Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level.

Inessa [10]1 year ago
3 0

Answer:

Noble gases are nonreactive, nonmetallic elements in group 18 of the periodic table. They have eight valence electrons, which fill their outer energy level.

Explanation:

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Describe the relationship between gravitational force and distance<br> as shown in the diagram.
aev [14]

Answer:

as you move away from a planet the gravitational force gets weaker. just think, if you get close towards a sun then the gravitational force will be stronger.

3 0
4 years ago
A geologist finds ripples preserved in ancient sedimentary rock that look just like ripples made by water in mud. He concludes t
MArishka [77]

Answer:

D.  because water and mud behaved in a similar way in the past as they do today

Explanation:

One of the fundamental theories in the field of earth science is the theory of uniformitarianism.

Uniformitarianism was proposed by James Hutton in the 18th century in Scotland. The theory states that "geologic processes occurring today have occurred in times past and that the present is the key to past".

The simple meaning of the theory is that, the processes on earth today such as weathering, erosion, e.t.c have also occurred in times past. Those processes still occur today and an understanding of such events today will help us have a better insight into the past.

Therefore, ripple marks just as they form today from action of mud and water would be formed in a similar way in the past.

6 0
3 years ago
There are 342 g of sucrose in 1.00 mol of sucrose. What is the molar concentration (molarity) of a solution containing 171 g suc
AVprozaik [17]
For the answer to the question above, use these formulas in solving your problem and as a guide.
<span> 
MM = 342 (g/mol) </span>

<span>171 (g) / 342(g/mol) = x mol of sucrose </span>
<span>x moles of sucrose/ 1.25 L =  Molarity of soultion 

</span>I hope I helped you with your problem. Have a beautiful day!
7 0
3 years ago
How are compounds Similar to elements and how are they different​
Yuki888 [10]

Answer:

A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds. They contain only one type of molecule.

3 0
3 years ago
The pathway by which carbon is transferred from living organisms to the atmosphere is called:
Phoenix [80]

Answer:

cellular respiration

Explanation:

All exergonic processes produced in the cell, through which substances oxidize and chemical energy is released, are grouped under the name of cellular respiration, but to break down an organic molecule the cells employ, mainly dehydrogenations that can be carried carried out in the presence or absence of atmospheric O2 oxygen. There are therefore two types of breathing: aerobic respiration and anaerobic respiration. The latter also called fermentation.

Aerobic respiration  (oxidative phosphorylation)

- Use molecular O2.

- It degrades glucose to CO2 and H2O

- Exergonic

- Recovers about 50% of chemical energy

- Present in most organisms.

- It uses enzymes located in the mitochondria.

3 0
3 years ago
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