Explanation:
Let there be 1 mole of CoCl2.
Mass of CoCl2 = 1mol * (129.839g/mol) = 129.839g
Mass of H2O = 309.99g - 129.839g = 180.151g
Moles of H2O = 180.151g / (18g/mol) = 10mol
Hence the mole ratio of CoCl2 to H2O is 1 : 10.
Answer:<em>if u change the number of neutrons u will .get an isotope of the same element. </em>
Explanation: <em>neutron can make an atom radioactive</em>
Answer:
talk to them.
Explanation:
some people you can never get to like you but by talking to all types of people you find the people you can relate to and when you do it should feel natural for you.
Density = mass/volume
substituting the given values :
We get :
D = 37.4 / 2.2 x 10^3
D = 0.017 grams/liter