Chemistry chapter 11

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When the equation Fe2O3 + H2 > Fe + H2O is balanced using whole number coefficients, what is the coefficient of H2?

3

In a ______________ each side of the equation has the same number of atoms of each element

Balanced equation

The number that appears in front of a formula in a balanced equation is the _____________

Coefficient

A _____________ is a chemical change in which two or more substances react to form a single new substance

Combination reaction

A _______________ is a chemical change in which two or more substances react to form a single new substance

Combination reaction

A _______________ is a chemical change in which an element or compound reacts with oxygen

Combustion reaction

A ________________ is an equation that shows dissolved ionic compounds as dissociated free ions

Complete ionic equation

A _______________ is a chemical change in which a single compound breaks down into two or more simpler products

Decomposition reaction

Skeleton equation

Does not indicate amount of reactants and products

A ________________ is a chemical change involving an exchange of positive ions between two compounds

Double replacement

A ____________________ reaction is a chemical change that involves an exchange of positive ions between two compounds

Double replacement

Which are the expected products of the decomposition reaction of potassium oxide, K2O?

K(s() and O2(g)

To write a skeleton equation, write the chemical formulas for the reactance to the __________ of the yield sign (arrow) and the formula for the products to the ___________

Left,right

Activity series

List of elements in decreasing reactivity

The ________________ is an equation for a reaction in solution that shows only those particles that are directly involved in the chemical change

Net ionic equation

Spectator ion

Not directly involved in a chemical reaction

Coefficients

Numbers in front of formulas

Decomposition reaction

One compound breaks down into two or more products

Single replacement reaction

One element replaces another in a compound

By using the general rules for solubility of ionic compounds, you can predict the formation of a

Precipitate

Combustion reaction

Reacts with oxygen

Chemical equation

Representation of a chemical reaction

A _________________ is a chemical change in which one element replaces a second element in a compound

Single replacement reaction

A ________________ is a chemical equation that does not indicate the relative amounts of the reactants and products

Skeleton equation

To write a balanced chemical equation, first right the ____________

Skeleton equation

And Ion that appears on both sides of an equation and is not directly involved in the reaction is called a

Spectator ion

And ion that appears on both sides of an equation and is not directly involved in the reaction, is called a ______________

Spectator ion

catalyst

Speeds up a reaction

Identify the spectator ion in this reaction. [ BaOH)2(aq) + H2SO4(aq) > BaSO4(s) + H2O(1) ]

There is no spectator ion

Combination reaction

Two substances form one new compound


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