Answer : The correct option is 
.
Explanation :
Specific heat capacity : It is defined as the amount of heat required to raise the temperature of one gram of substance by one degree Celsius.
Formula used :
where,
q = heat required
m = Mass
c = specific heat capacity
= change in temperature
The unit of heat are expressed in terms of Joules, calories.
The unit of temperature are expressed in terms of degree Celsius, kelvin.
It is expressed as .
The balanced chemical reaction of potassium chloride involves 2 moles of potassium to react with 1 mole of chlorine and other are explained below.
<h3>What is balanced equation?</h3>
Balanced chemical equations are those equations in which all entities are present in same amount on reactant as well as on the product side of the reaction.
Given chemical reactions are:
- First equation is a balanced equation in which nitrogen reacts with hydrogen to form ammonia because all are present in same quantity on both sides.
- Second equation is not a balances equation as number of chlorine atoms are not present in same quantity, so balanced equation is:
2K + Cl₂ → 2KCl
- Balanced equation for the third reaction is:
CF₄ + 2Br₂ → CBr₄ + 2F₂
- Balanced equation for the fourth reaction is:
GaF₃ + 3Cs → 3CsF + Ga
- Fifth reaction between barium sulfide and platinum di fluoride is balanced as all atoms are present in same amount on both sides.
- Balanced equation for the last reaction is:
MgF₂ + Li₂CO₃ → MgCO₃ + 2LiF
Hence in the formation of potassium chloride balanced equation involves 2 moles of potassium to react with 1 mole of chlorine.
To know more about balanced equation, visit the below link:
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Matter is anything that occupies space and has mass.
Antimony cannot be broken down by chemical means because it is an element, a principle building block of matter. All other choices are compounds, which can be separated if put through enough stress to break the bonds between the atoms.
