Answer: March 21
Explanation: March 21
Yes, because they are in the same group also because they are similar with the <span>chemical properties</span>
Answer:
Water gradually degrades them until the metal parts rust and the other materials deteriorate.
Explanation:
one mole of MgSO4.7H2O weighs 246.4696 g
<span>in that one mole are seven moles of H2O, weighing 126.1036 g </span>
<span>The percentage of water is this calculation: </span>
<span>(126.1036 / 246.4696) * 100 = 51.17</span><span>%
</span>
Yes it can be but if stuff like the council have the equipment to pay for to help stop erosion then it wouldn't be as bad