There are three naturally occurring isotopes
of magnesium: 24
12Mg, 25
12Mg, and 26
12Mg. In
a weird parallel universe, the percentages of
these isotopes are
Magnesium Natural
Isotopes Abundance
24
12Mg 45.8%
25
12Mg 22.6%
26
12Mg 31.6%
You can assume the masses are equal to the
mass number. Calculate the weight of “naturally” occurring magnesium in this weird
parallel universe.
Answer in units of g/mol. Your answer
must be within ± 0.015%
< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >
Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.
Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".