<span>H2. Since the difference in electronegativity between two identical atoms is 0, the resulting molecule is non-polar.</span>
The balanced skeleton reactions are given below
2CrO₄²⁻(aq) + 3Cu(s) +8
(l) → 2Cr(OH)₃(s) + 3Cu(OH)₂(s) + 6
(aq)
The oxidising agent and reducing agents are Cr and Cu .
There are following steps involve in balance redox reaction in basic medium .
- First divide the reaction into two half reactions which give oxidation and reduction half reaction.
- Then balance the elements other than oxygen and hydrogen atom.
- Balance the oxygen atom by adding
where number of oxygen is less .
- Balance the hydrogen atom by adding
on another side of where water molecule added. - Add
ions to both sides to neutralize
ion. - Combine
and
ion to make
.
- Balance the charge by adding
.
The species which reduces the other species in the redox reaction is called oxidizing agent . Similarly , the species which oxidize the other species in the redox reaction is called reducing agent .
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Answer:
The ball hit with 12 N
Explanation:
acceleration = Force/ mass
If masses of balls are the same, then more the force - more acceleration.
12N more than 8N,
so the ball that hits Stacy accelerate faster.
Answer:
A. Hydrogen gas combining with oxygen gas to form water.
Explanation:
H2 is the symbol for Hydrogen in gaseous state and O2 is the symbol for Oxygen in gaseous state. H2O is the chemical formula of Water. It is clearly indicated in the equation that Hydrogen and Oxygen combining to form Water.
The arrow to the water indicate that the water is the product and it is NOT the decomposition reaction.