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3 years ago

Which of the following does not accurately describe the forces that exist with an atom?

2 answers:

8 0

Answer: Electrons positioned closer to the nucleus have a greater attraction to the protons and are more likely to be discharged from the atom than electrons farther away.

Explanation: The electrons being negatively charged repel each other due to like charges. The protons being positively charged are attracted towards the negatively charged electrons.

The electrons which are near to nucleus are more tightly held by the protons and thus are more difficult to remove from the atom. The electrons which are far from the nucleus are less tightly held and are easily removed from the atom.

Bond [772]3 years ago

5 0

Answer: Option (C) is the correct answer.

Explanation:

An atom consists of three sub-atomic particles which are electrons, protons and neutrons.

As electrons are negatively charges, protons are positively charged and neutrons have no charge.

And since, electrons revolve around the nucleus (nucleus contains both protons and neutrons) so, there exists a strong force of attraction between the protons and electrons near the nucleus.

Hence, electrons near the nucleus are difficult to discharge.

Thus, we can conclude that the statement electrons positioned closer to the nucleus have a greater attraction to the protons and are more likely to be discharged from the atom than electrons farther away, does not accurately describe the forces that exist with an atom.

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What might be an example of a neutral relationship in this ecosystems

ludmilkaskok [199]

The interaction is seemingly neutral for one of the organisms. For example, a barnacle attached to a whale can travel thousands of miles collecting and filtering food from the moving water. The whale doesn't seem to be affected by the little hitchhikers.

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2 years ago

A red blood cell with an osmolarity of 300 mOsM (non-penetrating solutes) swells but does not lyse when placed in a 300 mOsM sol

Mashcka [7]

Answer:

See below for answer

Explanation:

A. 200 mOsM NaCl

This solution is hypotonic to the red blood cell (RBC) with penetrating solute. The RBCs will swell up and burst because the water will move into the cells.

B. 400 mOsM urea

This solution is hypertonic to the RBCs with non-penetrating solutes. Water will leave the cells via osmosis and the cells will shrink and appear shriveled.

C. 100 mOsM urea plus 200 mOsM NaCl

This time both penetrating and non-penetrating solute is present. The solution is isotonic to the RBCs and although there will be movement of water between the cells and the solution, there will be no overall change in the concentration of water for each and no change in appearance of the cells.

D. 300 mOsM urea

The RBCs will not lyse nor shrivel as again the solution is isotonic to the RBCs.

8 0

3 years ago

Recall that photosynthesis consists of two sets of chemical reactions. Which of these describes the energy conversions that occu

belka [17]

Chemical energy chemical energy

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3 years ago

Read 2 more answers

Molecules and ions that have resonance take on resonance hybridization. True or False

Zina [86]

The answer false because icon don't resonance hybridization

5 0

2 years ago

Which features of Mt. Lico isolate the forest on the mountain from the surrounding area?

katen-ka-za [31]

Answer: See explanation below for answer.

Explanation: Mount Lico is an inselberg, meaning that it is an isolated mountain that rises abruptly from the surrounding plain. At the top of the mountain is a forest that lacks exploration and exploitation by humans.

The mountain is located the Zambezia province in northern Mozambique. It is 1,100 meters or 3,600 feet above sea level, and this is the major reason why it lacks exploitation by humans.

The features of Mount Lico that isolate the forest on top the mountain from the surrounding area are its height and sheer rock walls (which can be up to 700 meters).

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3 years ago