Write the balanced combustion equation for solid barium. remember that combustion is a type of synthesis reaction.
2ba + o2 ➡ 2bao
ba + o ➡ bao
2ba + o ➡ ba2o
2ba + o2 ➡ ba2o2

2Ba + O2 --> BaO

Explanation:

A combustion reaction is a reaction between a fuel with oxygen. Is this case, the fuel is Barium, which is a metal of group 2A, so it has 2 electrons in its valence shell. It must donate these 2 electrons to be stable and will be the cation .

Oxygen is in group 6A, so it has 6 electrons in its valence shell, so must gain 2 electrons to be stable, and will be the anion . So, they will form an ionic compound, and we need to change their charges without the signal to form its formula:

Ba2O2 = BaO

The reaction is:

Ba + O2 --> BaO

Balancing:

2Ba + O2 --> 2BaO

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.