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3 years ago

State why chemical equations are useful

1 answer:

meriva3 years ago

8 0

<span>A Chemical equation is useful because it shows all the elements or compounds involved on a chemical reaction. It also shows which elements or compounds are the products and which are the reactants. The behavior of each element or compound can also be seen in the equation, on what each element or compound did as to where they went or what they formed when they reacted. Chemical equations are very useful because all information are found in one equation, thus, no need for a lot of reading.</span>

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What is the chemical formula for H2O?

Bas_tet [7]

Answer:

IUPAC ID

Explanation:

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4 years ago

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What solvent should you use to measure the density of naphthalene acid?

masya89 [10]

Water b/c it is insoluble in water. it is soluble in cyclohexane and sparingly <span>soluble in ethyl alcohol.

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3 0

3 years ago

Partner Namets) For each of the following reactions carried out: Write the balanced chemical equation, the full ionic equation,

torisob [31]

Answer : The full balanced ionic equation will be,

$2KI(aq)+Pb(NO_3)_2(aq)\rightarrow 2KNO_3(aq)+PbI_2(s)$

Reactants are lead nitrate and potassium iodide.

Products are lead iodide and potassium nitrate.

The spectator ions are, $K^+,NO_3^-$

Explanation :

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolyte and present in an aqueous are represented in the form of ions.

Net ionic equation : In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

When potassium iodide react with lead nitrate then it gives potassium nitrate and lead iodide as a product.

The full balanced ionic equation will be,

$2KI(aq)+Pb(NO_3)_2(aq)\rightarrow 2KNO_3(aq)+PbI_2(s)$

The ionic equation in separated aqueous solution will be,

$2K^+(aq)+2I^{-}(aq)+Pb^{2+}(aq)+2NO_3^{-}(aq)\rightarrow PbI_2(s)+2K^+(aq)+2NO_3^{-}(aq)$

In this equation, $K^+\text{ and }NO_3^-$ are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

$Pb^{2+}(aq)+2I^{-}(aq)\rightarrow PbI_2(s)$

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4 years ago

Perform the following

Eddi Din [679]

11.345
Explanation: 15.225 - 3.880 = 11.345

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3 years ago

Study the following unbalanced redox reaction. Which one of the following choices represents the balanced redox equation? P4+O2

artcher [175]

P4 + 5O2 -> P4O10 is the balanced equation

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3 years ago