In a chemical reaction, 300 grams of reactant a are combined with 100 grams of reactant b. both a and  b react to completion. how much will the product weigh?

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes no correct anwser get brainliest