Question

K + Br2 → KBr CH4 → C2H2 + H2 Mg + N2 → Mg3N2 Ag2O → Ag + O2 H2 + F2 → HF Cr2O3 + Al → Al2O3 + Cr CuO + C → Cu + CO2 MgCl2 + KOH → KCl + Mg(OH)2 CaBr2 + K3PO4→ KBr + Ca3(PO4)2 Пожалуйста! расставьте коэффициенты в уравнениях химических реакций, укажите тип реакции.

Answer 1

Объяснение:

Fe+2HCl=FeCl₂+H₂

2NH₃=N₂+3H₂

2Fe+3Cl₂=2FeCl₃

N₂+O₂=2NO

2Mg+O₂=2MgO

3H₂+N₂=2NH₃

CH₄+2O₂=CO₂+2H₂O

2Al+3Cl₂=2AlCl₃

2Zn+O₂=2ZnO

4P+5O₂=2P₂O₅

2Cu+S=Cu₂S

2Ca+O₂=2CaO

2HI=I₂+H₂

2Fe+3Cl₂=2FeCl₃

MnO₂+2H₂=2H₂O+Mn

2Al+3S=2Al₂S₃

C+O₂=CO₂

2P+5S=P₂S₅

4Li+O₂=2Li₂O

2H₂O=2H₂+O₂

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Answer 2

Balancing Chemical Equations and Identifying Reaction Types

1. Balancing Chemical Equations

The given chemical equations need to be balanced. Let's start with the first equation:

K + Br2 → KBr

To balance this equation, we need to ensure that there are an equal number of each type of atom on both sides of the equation. The balanced equation is:

2K + Br2 → 2KBr

Now, let's move on to the next equation:

CH4 → C2H2 + H2

The balanced equation for this reaction is:

2CH4 → C2H2 + 3H2

Moving on to the next equation:

Mg + N2 → Mg3N2

The balanced equation for this reaction is:

3Mg + N2 → Mg3N2

Next, we have:

Ag2O → Ag + O2

The balanced equation for this reaction is:

2Ag2O → 4Ag + O2

Then, we have:

H2 + F2 → HF

The balanced equation for this reaction is:

H2 + F2 → 2HF

Moving on to the next equation:

Cr2O3 + Al → Al2O3 + Cr

The balanced equation for this reaction is:

2Cr2O3 + 4Al → 4Al2O3 + 3Cr

Next, we have:

CuO + C → Cu + CO2

The balanced equation for this reaction is:

2CuO + C → 2Cu + CO2

Then, we have:

MgCl2 + KOH → KCl + Mg(OH)2

The balanced equation for this reaction is:

MgCl2 + 2KOH → 2KCl + Mg(OH)2

Finally, we have:

CaBr2 + K3PO4 → KBr + Ca3(PO4)2

The balanced equation for this reaction is:

3CaBr2 + 2K3PO4 → 6KBr + Ca3(PO4)2

2. Identifying Reaction Types

Now that the equations are balanced, let's identify the type of each reaction:

- K + Br2 → 2KBr: This is a synthesis reaction. - 2CH4 → C2H2 + 3H2: This is a decomposition reaction. - 3Mg + N2 → Mg3N2: This is a synthesis reaction. - 2Ag2O → 4Ag + O2: This is a decomposition reaction. - H2 + F2 → 2HF: This is a synthesis reaction. - 2Cr2O3 + 4Al → 4Al2O3 + 3Cr: This is a single displacement reaction. - 2CuO + C → 2Cu + CO2: This is a single displacement reaction. - MgCl2 + 2KOH → 2KCl + Mg(OH)2: This is a double displacement reaction. - 3CaBr2 + 2K3PO4 → 6KBr + Ca3(PO4)2: This is a double displacement reaction.

I hope this helps! If you have any more questions or need further assistance, feel free to ask.