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sergiy2304 [10]
2 years ago
10

3. Balance the equation below.

Chemistry
1 answer:
Alexeev081 [22]2 years ago
5 0

a. 1, 1, 1

N+H--------NH

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The human body has four types of tissues, and the eye contains all four. Which statement correctly pairs the part of the eye
stepladder [879]

Answer:

The correct answer is D) Nerve tissue is found in the retina, the rods and cones at the back of the eye.

Explanation:

The rods and cones are photoreceptors (that is nerve cells within the eyes that can sense light) which is situated in the retina.

These photoreceptors also sense colours and send these signals into the optic nerve for transmission to the brain.

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6 0
3 years ago
If 0.35 moles of kcl was dissolved in enough water to make 0.2 L of solution, what is molarity?
Mars2501 [29]

Answer:

1.75M

Explanation:

molarity = number of moles of solute/ number of L of solution =

=0.35 mol/0.2L = 1.75 mol/L = 1.75 M

8 0
3 years ago
group of atoms that gains or loses electrons is called _______. A. a polar ion B. a non-polar ion C. a polyatomic ion D. a commo
raketka [301]

Answer: Option (C) is the correct answer.

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An ion is defined as a specie which is formed when a neutral atoms tends to gain or lose an electron.

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For example, a neutral fluorine atom on gaining an electron will form F^{-} ion. And, a sodium atom on losing an electron forms Na^{+} ion.

When a group of atoms form ions then it tends to form polyatomic ions.

Thus, we can conclude that group of atoms that gains or loses electrons is called a polyatomic ion.

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