2 years ago

Why can metals be extracted using carbon

1 answer:

5 0

If a metal is less reactive than carbon, it can be extracted from its oxide by heating with carbon. The carbon displaces the metal from the compound, and removes the oxygen from the oxide. This leaves the metal.

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A factor that changes in an experiment from manipulation of the independent variable is the what?

melomori [17]

Manipulation of the independent variable should change the dependent variable, the value of which "depends" on the independent variable's change in value.

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2 years ago

What is the percent composition of aluminum in the ore bauxite (AI2O3)?

Schach [20]

Answer:

Molar mass of Al2O3 = 101.961276 g/mol

This compound is also known as Aluminium Oxide.

Convert grams Al2O3 to moles or moles Al2O3 to grams

Molecular weight calculation:

26.981538*2 + 15.9994*3

Percent composition by element

Element Symbol Atomic Mass # of Atoms Mass Percent

Aluminium Al 26.981538 2 52.925%

Oxygen O 15.9994 3 47.075%

Explanation:

Percent composition by element

Element Symbol Mass Percent

Aluminium Al 52.925%

Oxygen O 47.075%

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Which of the following has the largest radius?<br><br><br> Answer:K

mixas84 [53]

Answer:

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Vitek1552 [10]

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3 years ago

You bought a new fish aquarium with the dimensions of 55 cm x 100 cm x 80 cm. what volume of water should you put in it? Show yo

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