Question

Na+ O2 Al +O2 CA+O2 Si+O2

Answer 1

Ответ:

NaO2
AlO2
CAO2
SiO2

Объяснение:

Answer 2

The given combinations represent chemical reactions involving different elements reacting with oxygen. Here are the balanced chemical equations for each reaction:

1. Na + O2 → 2 Na2O (Sodium reacts with oxygen to form sodium oxide)

2. 4 Al + 3 O2 → 2 Al2O3 (Aluminum reacts with oxygen to form aluminum oxide)

3. 2 Ca + O2 → 2 CaO (Calcium reacts with oxygen to form calcium oxide)

4. Si + O2 → SiO2 (Silicon reacts with oxygen to form silicon dioxide)

In each reaction, the elements combine with oxygen to form different oxides. The coefficients in front of each element and compound represent the balanced stoichiometric ratios to ensure the conservation of mass.