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mixas84 [53]
3 years ago
8

What is oxidized and what is reduced in this reaction?

Chemistry
1 answer:
sineoko [7]3 years ago
6 0
N⁻²2H4(l) + 2H2O⁻¹2(l) → N⁰2(g) + 4H2O⁻²(g)

N is oxidized and O is reduced

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An increase in the atomic number________the atomic radius moving from left to right across a period.
frez [133]

Answer:

decrease

Explanation:

Atomic radius :

It is the distance from the center of nucleus to the outer most electronic shell.

Trend along period:

As we move from left to right across the periodic table the number of valance electrons in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required

4 0
3 years ago
How much momentum does a 200 kg rhino have that is running at 35 m/s E
nirvana33 [79]

Answer:

7000 kg*m/s E

Explanation:

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If you want to simplify it further, m=7*10^3 kg*m/s E

5 0
2 years ago
Read 2 more answers
What is the formula of the chromium(iii) complex that contains two ammonia and four thiocyanate (scn−) ligands?
Nonamiya [84]
Answer is: formula of the complex is [Cr(NH₃)₂(SCN)₄<span>]</span>⁻<span>.
This complex has negative charge (-1) because chromium (central atom or metal) has oxidation number +3, first ligand ammonia has neutral charge and second ligand thiocyanate has negative oxidation number -1:
+3 + 2</span>·0 + 4·(-1) = -1.
4 0
3 years ago
Help me with this question?!!
Ne4ueva [31]

Answer:

Glow sticks  and match would be light emission, slime would be preciptate, and cookies would be gas.

Explanation:

5 0
3 years ago
Does a hypothesis have to be true for a experiment to be valid?
Sav [38]

Answer:

no

Explanation:

because hypothesis are just what we thing is gonna happen it doesn't have to be true

sorry if im wrong

3 0
3 years ago
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