No, it is not possible to visually distinguish regular matter from antimatter without using scientific apparatus or advanced detection methods. Matter and antimatter particles have the same properties, such as mass and charge, but with opposite signs. For example, an electron has a negative charge, while its antimatter counterpart, the positron, has an equal mass but a positive charge.
In everyday life, matter and antimatter behave similarly and interact with ordinary matter in the same way. They can't be visually distinguished based on appearance alone. Both matter and antimatter particles have the same characteristics, such as size, shape, and color, as they are composed of the same fundamental particles.
To determine whether a given particle or object is made of regular matter or antimatter, specialized scientific apparatus and techniques are required. These can include particle accelerators, detectors, and experiments designed to identify the properties and behaviors unique to antimatter, such as charge and annihilation signatures.
So, while matter and antimatter look indistinguishable to the naked eye, precise scientific measurements and experiments are necessary to determine their nature and differentiate between them.