The charge of an electron is defined as -1.602 x 10-19 C. What is the charge of
a proton in coulombs?

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.

it's a b and

conservation of mass

mass before something happens = mass afterwards