What reactant produces oxygen in photosynthesis?

Answer 1

Oxygen is a reactant

Answer 2

Oxygen can be either a product or a reactant, depending on the situation. As a reactant, it undergoes a chemical reaction with something else to make a product. And it could end up as a product of another chemical reaction. Let's look a bit more closely and see what that means by using examples.

In the case of oxygen as a product, if we immerse a pair of electrodes in water (H2O) and apply a sufficient DC voltage, we'll see hydrogen gas (H2) appear at one electrode (the negative one), and oxygen gas (O2) appear at the other one (the positive one). Here's the equation:

2H2O + energy => 2H2 + O2

In the case of oxygen as a reactant, if we heat carbon monoxide (CO) in air, it will react with the oxygen (O2) in the air to form the product carbon dioxide (CO2). Here's the equation:

2CO + O2 => 2CO2

There are two simple reactions showing oxygen as product and as reactant. Certainly there are many other examples of oxygen as either product or reactant.

Answer 3

That question can be answered as either. It depends what the reaction is that you are performing. Oxygen in the case of producing iron oxide (rust) by the well know process of oxidation, it is a reactant along with iron. But in such a case of electrolysis, the process of splitting water molecules by sending an electrical current through it, oxygen and hydrogen are the products of the decomposition of water. So it really depends whether you are making a compound or decomposing one.

Answer 4

In incomplete combustion of carbon fuels, where there is insufficient oxygen for complete combustion, it will be one of the products. However, even in this situation if the carbon monoxide encounters more oxygen it can still be burned to form carbon dioxide and thus may be a reactant.

Answer 5

Water is the reactant that generates oxygen in photosynthesis through a process known as photolysis, where water molecules are split into oxygen, protons, and electrons in the presence of light.

Answer 6

Water is split into electrons, protons, and oxygen. The oxygen is released as waste.

Answer 7

It can be. Depending on the reaction O2 can be a product or a reactant

Answer 8

Nope :) but water is.

Answer 9

Both situations are possible.

Answer 10

yes