Answer:
mass is the amount of substance contained in matter while volume is the space occupied by matter
in other words , mass talks about how heavy a body is while volume deals with the space covered by a 3- dimensional body. note : A 2- dimensional body can't occupy volume
Answer:
![CuSO_4 (aq) + Fe (s)\rightarrow FeSO_4 (aq) + Cu (s)](https://tex.z-dn.net/?f=CuSO_4%20%28aq%29%20%2B%20Fe%20%28s%29%5Crightarrow%20FeSO_4%20%28aq%29%20%2B%20Cu%20%28s%29)
Explanation:
Identify all of the compounds present:
- aqueous copper(II) sulfate: we have copper charged as 2+, sulfate anion has a charge of 2-. This means the charges are balanced if we take 1 ion of each to give
; - solid iron metal: iron metal is Fe, then including the state of iron, we have
; - aqueous iron(II) sulfate: iron has a charge of 2+, sulfate has a charge of 2-, so the positive charge balances the negative charge to give a formula of
; - solid copper metal: copper metal is Cu, then including the state of copper, we have
.
We then have a reaction:
![CuSO_4 (aq) + Fe (s)\rightarrow FeSO_4 (aq) + Cu (s)](https://tex.z-dn.net/?f=CuSO_4%20%28aq%29%20%2B%20Fe%20%28s%29%5Crightarrow%20FeSO_4%20%28aq%29%20%2B%20Cu%20%28s%29)
Answer:
353kg
Explanation:
2000 x 0.1765 = 353kg
for every 1 cubic metre of helium there is 0.1765 kg of it
the balloon is holding 2,000 cubic metres of the helium.
That means that there are 2000 times of 0.1765kg of helium in the balloon
so you times 0.1765kg by 2000
Sea turtles they leave them on the beach