Which of the following reaction is correctly balanced? (Atom and charge) Select all that apply;

The is a particle with one unit of positive charge a. proton b. positron c. electron d. nucleus awnser quick it is a important science test!

What three things determine the shape and size of a puddle when water is poured out onto a surface

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?