Answer:
Group 7 or the Halogens
Explanation:
The halogens occupies the 7th group on the periodic table. The group is made of F, Cl , Br, I and At.
The elements in this group are the most reactive of all elements. They are very reactive because they have just 7 electrons in their outermost shell and they only require an electron to complete their electronic configuration to produce an octet which typically mimics the stable group VIII elements.
This makes them very highly reactive.
Weight of Fe=2*55.8=111.6
[Because in the balanced reaction there are two moles of Fe]
Weight of FeCl3=(2*((55.8)+(3*35.5)))= 253.6
[weight of Cl is 35.5]
2Fe + 3Cl2-----> 2FeCl3
111.6g 253.6g
15.3 g ?
Cross multiply
Weight of FeCl3=(253.6*15.3)/111.6=34.7g
if i did this right i believe the answer is 34.7g.
Cl, because a higher electronegativity indicates that the atom attracts more electrons.
Answer:
Krypton does not react with anything, but it reacts with fluorine gas
Explanation: