Predict the missing component of each reaction.
2kcio3 - 2kci + ?
mgo + ? - mg(oh)2

Answer :

(a) The missing component is

(b) The missing component is

Explanation :

Balanced chemical reaction : It is defined as the reaction in which the number of atoms of individual elements present on reactant side must be equal to the product side.

(a) The given unbalanced chemical reaction is,

This reaction is an unbalanced chemical reaction because in this reaction one product is missing.

The given reaction is decomposition reaction which the larger molecule decomposes to give two or more smaller products.

The balanced chemical reaction will be,

In this reaction, the missing component is

(b) The given unbalanced chemical reaction is,

This reaction is an unbalanced chemical reaction because in this reaction one product is missing.

The given reaction is synthesis reaction which the two smaller molecules react to give single product.

The balanced chemical reaction will be,

In this reaction, the missing component is

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

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