Matching scientists and their discoveries thompson
dalton
rutherford
millikan

atoms are invisible
atoms contain electrons
electrons have a charge of -1
atoms have a positive nucleus

ANSWER:

THOMPSON-atoms contain electrons
DALTON-atoms are indivisible
RUTHERFORD- atoms have a positive nucleus
MILLIKAN- electrons have a charge of -1

i have a feeling this is a gay person trolling to make straights look bad.

it should be p1 v1 = p2 v2

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.