Visible light is a by-product of fusion, it is created when two atoms such as hydrogen atoms fuse together to make a larger element, this releases enormous amounts of energy in many forms.
Including but not limited to: Light, heat and everything on the electromagnetic spectrum.
reactant
This depends on the reaction involved.
The correctly written chemical reaction format is "Reactant plus Reactant → Product plus Product." In this format, the reactants are on the left side of the equation, while the products are on the right side, indicating that reactants undergo a transformation to form products. Other variations provided do not follow the standard notation for chemical reactions.
sulfur is a reactant
Reactant
Oxygen is a reactant
product
Sugar can be both a reactant and a product, depending on the chemical reaction. For example, in the process of photosynthesis, sugar (glucose) is produced as a product. However, in the process of fermentation, sugar is a reactant that is broken down to produce other products like ethanol and carbon dioxide.
Reactant- glucose and product- carbon dioxide.
No, carbon dioxide is a reactant in photosynthesis.
Glucose is a product of photosynthesis and a reactant in cellular respiration.
For copper, it is an element. It could be both reactant and product. While purifying copper will be the product. But copper would be the reactant in case of preparing hydrogen or copper sulphate salts.