Physics, 29.12.2019 18:31 Kazya4

The equations are not balanced. which equation would have the same coefficients in the same order as 2co2 + 3h20 → c2h6o + 3o2?

al + feo → al2o3 + fe
ch4 + o2 →co2 + h2o
pcl5 + h2o → hcl + h3po4
fecl3 + nh4oh → fe(oh)3 + nh4cl

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Answer from: kenaygardel

Answer : The correct equation that have the same coefficients order is:

$Al+FeO\rightarrow Al_2O_3+Fe$

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.

If the amount of atoms of each type on the left and right sides of a reaction differs then to balance the equation by adding coefficient in the front of the elements or molecule or compound in the chemical equation.

The coefficient tell us about that how many molecules or atoms present in the chemical equation.

The given balanced chemical reaction is,

$2CO_2+3H_2O\rightarrow C_2H_6O+3O_2$

The order of coefficients is, 2, 3, 1, 3

(a) The unbalanced chemical reaction is,

$Al+FeO\rightarrow Al_2O_3+Fe$

This reaction is an unbalanced chemical reaction because in this reaction number of aluminum and oxygen atoms are not balanced.

In order to balance the chemical equation, the coefficient '2' put before the and the coefficient '3' put before the $FeO\text { and }Fe$ and then we get the balanced chemical equation.

The balanced chemical reaction will be,

$2Al+3FeO\rightarrow Al_2O_3+3Fe$

The order of coefficients is, 2, 3, 1, 3

(b) The unbalanced chemical reaction is,

$CH_4+O_2\rightarrow CO_2+H_2O$

The balanced chemical reaction will be,

$CH_4+2O_2\rightarrow CO_2+2H_2O$

The order of coefficients is, 1, 2, 1, 2

$PCl_5+H_2O\rightarrow HCl+H_3PO_4$

The balanced chemical reaction will be,

$PCl_5+4H_2O\rightarrow 5HCl+H_3PO_4$

The order of coefficients is, 1, 4, 5, 1

(d) The unbalanced chemical reaction is,

$FeCl_3+NH_4OH\rightarrow Fe(OH)_3+NH_4Cl$

The balanced chemical reaction will be,

$FeCl_3+3NH_4OH\rightarrow Fe(OH)_3+3NH_4Cl$

The order of coefficients is, 1, 3, 1, 3

Answer from: Quest

B) raising the temperature and reducing the volume of the gas.|-/

Answer from: Quest

the unit of the measure = $\frac{j}{kgk}$

explanation:

the property that is quantified by the energy needed per of material to raise the temperature by one.

si unit of energy = joule (j)

si unit of temperature = kelvin (k)

si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is $\frac{j}{kgk}$

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The equations are not balanced. which equation would have the same coefficients in the same order as...