12) photosynthesis is a chemical reaction where carbon dioxide and water react to form glucose (c6h12o6) and oxygen gas. which represents the proper balanced equations for photosynthesis?

Answer : The balanced chemical reaction will be,

Explanation:

Photosynthesis : It is a type of chemical reaction that occurs in the green plants or living organism.

During the photosynthesis process, the carbon dioxide reacts with water in the presence of sunlight to produce glucose and oxygen as a product.  

The balanced chemical reaction will be,

In the photosynthesis reaction, carbon dioxide and water molecule are the reactants and glucose and oxygen are the products.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it