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Vanyuwa [196]
2 years ago
8

POINTS 50 - 30!!! in my bio to find some of my unanswered questions

Chemistry
1 answer:
alex41 [277]2 years ago
6 0

Answer:

I have answered all 9/10 + this one so 10/10

Explanation:

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The cell membrane is<br> a)semi permeable<br> b)selectively permeable
likoan [24]

Answer:

A. Semi Permeable.

Explanation:

Cell membranes are semi permeable.

7 0
1 year ago
What is the name of the ability to use up energy in one second
Savatey [412]

Answer:

Work

Explanation:

Work is defined as the ability to use energy in one second and its SI unit is same as energy that is joule.

Work refers to the energy utilized to displace an object over a distance by an external force in one direction and in given time period which can be one second as well.

Hence, the correct answer is "work".

5 0
3 years ago
Select the correct answer. When an atom in a reactant loses electrons, what happens to its oxidation number? A. Its oxidation nu
vfiekz [6]

Answer:

C. Its oxidation number increases.

Explanation:

  • <em><u>Oxidation is defined as the loss of electrons by an atom while reduction is the gain of electrons by an atom</u></em>.
  • Atoms of elements have an oxidation number of Zero in their elemental state.
  • When an atom looses electrons it undergoes oxidation and its oxidation number increases.
  • For example, <em><u>an atom of sodium (Na) at its elemental state has an oxidation number of 0. When the sodium atom looses an electrons it becomes a cation, Na+, with an oxidation number of +1 , the loss of electron shows an increase in oxidation number from 0 to +1.</u></em>
8 0
2 years ago
Read 2 more answers
Which statement correctly describes the relationship between thermal energy and particle movement?
Hunter-Best [27]

As thermal energy increases and there is more particle movement.

  • Thermal energy is the energy possessed by the system or object due to the movement of its particles.
  • For example kinetic energy of the particles
  • Higher the motion of the particles more will be the thermal energy of the system or object and vice-versa
  • It is also termed as heat energy of a system or object
  • The higher the thermal energy, the higher will be the temperature and vice versa.

So, from this, we can conclude that as thermal energy increases and there is more particle movement.

Learn more about thermal energy here:

brainly.com/question/21162439?referrer=searchResults

brainly.com/question/11278589?referrer=searchResults

5 0
2 years ago
In which model are atoms are imagined as tiny balls?
kobusy [5.1K]
Dalton's Billiard Ball Model
5 0
3 years ago
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