8,8 gram CO2 gazı için, I. 0,2 moldür.
II. 0,4.N tane oksijen atomu içerir.
III. Normal koşullarda 4,48 litre hacim kaplar.
yargılarından hangileri doğrudur?
(C = 12 g/mol, O = 16 g/mol, Avogadro sayısı = N)
A) Yalnız!
B) Yalnız II
C) Yalnız III
E) I, II ve III
D) I ve II

Athe top of a hill, an athlete on a skateboard has x joules of mechanical energy. how much mechanical energy will she have at the bottom of the hill? ignore the effects of friction.

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

Arrange the elements in order of increasing electronegativity. use the periodic table to you arrange the elements. p o k mg