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The actual knowledge about what products are produced in a chemical reaction is obtained by...

laboratory analysis

Once the correct formula for a reactant in an equation has been written, the...

formula should not be changed

In writing an equation in which hydrogen gas appears as a product, the correct representation of hydrogen gas is


In a chemical equation, the symbol " " is read


In a chemical equation, the upward pointing arrow is used for a

gaseous product

How would oxygen be represented in the formula equatoin for the reaction of methane and oxygen to yield carbon dioxide and water?


What is the ratio of hydrogen to cholorine in the equation ?


Balanced formula equatoins express allof the following EXCEPT

mechanisms by which reactants become restructured into products

A reversible reaction is indicated by

two yield symbols pointing in opposite directions

When the equation is correctly balanaced, the coefficent of Fe is


In a chemical equation, the symbol "(s)" indicates that the substance is

solid state

Write the word equation that represents the production of water from hydrogen and oxygen.

Hydrogen and oxygen yields water.

Write the formula equation for the formation of carbon dioxide from carbon and oxygen.


Balance the formula equation


Balance the formula equation


The reaction is an example of a

synthesis reaction

The reaction is an example of a

single-replacement reaction

The equation is an example of a

decomposition reaction

In one type of synthesis reaction, an element combines with oxygen to yield a


A metal carbonate, when heated, decomposes into a metal oxide and

carbon dioxide

In the equation , iron has been replaced by...


The reaction of calcium oxide (CaO) with water will yield

calium hydroxide

Predict the product of the following reaction


What product(s) will result from decomposition of HgO?

mercury and oxygen

A reaction in which two or more substances combine to form a new substance is called a

synthesis reaction

The equation AX A+X is the general equation for a ____________ reaction.


A reaction in which one element replaces a similar element in a compound is called a __________ reaction.


______________ is the decomposition of a substance by an electric current.


Group-1 metals react with water to produce ____________ and metall hydroxides.


The ability of an element to react is referred to as the element's....


An element in the activity series can replace any element....

below it on the list

An activity series is useful because it allows a person to predict...

whether or not a certain chemical reaction will occur

For a single-replacement reaction, an element will replace from a compound in aqueous solution those elements...

below it in the activity series

To replace hydrogen from steam, a metal must be

above cobalt in the activity series

In the activity series, any metal above hydrogen reacts with acids, replacing...


The synthesis of oxides by reaction with oxygen occurs for any metal in thea ctivity series

above silver

Oxides are formed only indirectly by metals in the activity series

below mercury

In the presence of oxygen, gold can be expected to

not react

In the activity series, oxides of metals below copper

decompose with heat alone

In the activity series, oxides of metals below chromium yield metals when

heated with hydrogen

Since mercury is below copper in the activity series, heating HgO will result in


Predict what will happen when calcium metal is added to a solution of magnesium chloride.

calcium chloride will form

Predict what will happen when zinc is added to water.

No reaction will occur

Predict what will happen when lead is added to nitric acid.

Hydrogen will be released.

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