Answer:
d
Explanation:
kinetic energy is transferred into movement.
A- Change the phase of the matter
When 1 mole of Zn and 2 mole of O₂ reacts togethor, It will produce 1 mole of ZnO as O₂ is excess reagent and Zn will act as Limiting reagent and thus it limits the amount of product formed.
<h3>What is Limiting reagent ?</h3>
Limiting reagents are the substances that are completely consumed first in a chemical reaction.
Given ;
- Amopunt of Zn : 1 mole
- Amount of O₂ : 2 mole
Given equation ;
2Zn + O₂ --> 2ZnO
As according to given chemical equation,
2 moles Zn of reacts with 1 mole of O₂ to produce 2 moles of ZnO.
Therefore,
1 mole of Zn will require 0.5 mole of O₂.
But,
the given amount of O₂ is 2 mole which is excess
Hence,
Zn here will act as the Limiting reagent, According to which the amount of product formed will be decided.
Therefore,
If 2 mole Zn produces : 2 moles of ZnO (According to given balanced equation)
Thus,
1 mole of Zn will produce = 2/2 x 1
= 1 mole of ZnO
Hence, When 1 mole of Zn and 2 mole of O₂ reacts togethor, It will produce 1 mole of ZnO as O₂ is excess reagent and Zn will act as Limiting reagent and thus it limits the amount of product formed.
Learn more about Limiting reagent here ;
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Temperature of the same cup of water will rise by 6 °C unless it boils.
<h3>Explanation</h3>
.
However, neither 
nor 
is given.
Adding 
to this cup of water of mass rises its temperature by 
.
In other words,
.
Both and are constant for the same cup of water unless the water boils. It's possible to reuse the value of 
in the second calculation. Here's how:
.
Answer:
D. Kinetic energy and is present in all states of matter.
Step-by-step explanation:
According to <em>Kinetic Molecular Theory,</em> all particles of matter are in constant, random motion.
The energy of this motion is kinetic energy.
