Classify each of the following as a combination, decomposition, single replacement, double replacement, or combustion reaction:

Chemistry

1 answer:

hjlf3 years ago

7 0

Answer:

1) single replacement

2) combustion reaction.

3) double replacement reaction

4) combination reaction

5) decomposition reaction

Explanation:

Chemical equation:

Fe₂CO₃ + 3C → 2Fe + 3CO

The given reaction is single replacement reaction. In this reaction carbon react with Fe₂CO₃ and replace the iron from CO₃²⁻ and form free iron and carbon monoxide.

Chemical equation:

C₂H₄ + 3O₂ → 2CO₂ + 2H₂O

The given reaction is combustion reaction. In which ethene burn in the presence of oxygen form carbon dioxide and water.

Chemical equation:

Fe₂O₃ + 6HCl → 2FeCl₃ + 3H₂O

The given reaction is double replacement reaction. In which anion and cation of both reactants exchange with each others.

Chemical equation:

2Al + 2Br₂ → 2AlBr₃

The given reaction is combination reaction in which aluminium and bromine combine to form aluminium bromide.

Chemical equation:

C₆H₁₂O₆ → 6C + 6H₂O

The given reaction is decomposition reaction in which glucose molecule decompose to give water and carbon.

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If the following elements were to form ions, they would attain the same number of electrons as which noble gas?

kobusy [5.1K]

The elements that form anions will have the electronic configuration similar to the noble gas that is in their period and those that form cations will have a configuration similar to that of the noble gas in the previous period.
He: Be
Ne: F, Al
Ar: Ca, P
Kr: Rb, Se

7 0

3 years ago

- How many moles of S2 are needed to produce 1.50 moles of SO2 gas? S2 + 20, ----> 2802

matrenka [14]

Answer:

0.75 moles

Explanation:

S2 + 2O2 = 2SO2

From the reaction above,

We see that number of moles attached to S2 is 1 and number of moles attached to SO2 is 2.

Since we want to find how many moles of S2 are needed to produce 1.50 moles of SO2 gas

The answer is gotten by proportion;