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Coulomb s law worksheet #1 writing and balancing formula equations answers

Write a balanced equation for the reaction of solid iron with aqueous hydrochloric acid to form aqueous iron III chloride and hydrogen gas. If the balanced equation contains coefficient fractions, clear those by multiplying the whole equation by the appropriate factor.

For example, consider the reaction of ethane C2H6 with oxygen to yield H2O and CO2, represented by the unbalanced equation: Following the usual inspection approach, one might first balance C and H atoms by changing the coefficients for the two product species, as shown: This results in seven O atoms on the product side of the equation, an odd number—no integer coefficient can be used with the O2 reactant to yield an odd number, so a fractional coefficient,is used instead to yield a provisional balanced equation: A conventional balanced equation with integer-only coefficients is derived by multiplying each coefficient by 2: Finally with regard to balanced equations, recall that convention dictates use of the smallest whole-number coefficients.

Additional Information in Chemical Equations The physical states of reactants and products in chemical equations very often are indicated with a parenthetical abbreviation following the formulas.

Although the equation for the reaction between molecular nitrogen and molecular hydrogen to produce ammonia is, indeed, balanced, the coefficients are not the smallest possible integers representing the relative numbers of reactant and product molecules.

The numbers of N and O atoms on either side of the equation are now equal, and so the equation is balanced.

Hint: Balance oxygen last, since it is present in more than one molecule on the right side of the equation. When ionic compounds dissolve in water, they may dissociate into their constituent ions, which are subsequently dispersed homogenously throughout the resulting solution a thorough discussion of this important process is provided in the chapter on solutions.

Write a balanced equation for the combustion of liquid octane C8H Example 2 Molecular and Ionic Equations When carbon dioxide is dissolved in an aqueous solution of sodium hydroxide, the mixture reacts to yield aqueous sodium carbonate and liquid water.

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Balancing Equations: Worksheet Answers