H-H
A covalent bond and one sigma bond between the two hydrogen atoms as they only have the one electron apiece to share in the covalent bond.
CaH2, calcium hydride, is ionic., Ca2+ 2H-
An ionic bond. The formula should be: K2O
It is 6-chloro-1,1-dioxo-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide with the formula, C7H8ClN3O4S2
Ionic bond in LiI (For lithium iodide, the molecular formula should be LiI and not LiI2)
The chemical name for CaCl2 is calcium chloride.
CaH2, calcium hydride, is ionic., Ca2+ 2H-
A=1/2h(a+b)
An ionic bond. The formula should be: K2O
A covalent bond involve sharing of electrons.
Penicilline is not a 'bond' but a compound. The chemical formula is: C16H18N2O4S (the original PenG, benzylpenicilline)
P= 2l+2w
2H
2h + 2h + 2h = 6h
It is 6-chloro-1,1-dioxo-3,4-dihydro-2H-1,2,4-benzothiadiazine-7-sulfonamide with the formula, C7H8ClN3O4S2
Ionic bond in LiI (For lithium iodide, the molecular formula should be LiI and not LiI2)
This is a good question, and you need to know the quadratic formula let A = area b = width h = height P = perimeter A = bh b = A/h P = 2b + 2h P = 2A/h +2h = (2h^2 + 2A)/h Ph = 2A + 2h^2 2h^2 - Ph + 2A = 0 use quadratic formula to solve: h =( P +/- SQRT(P^2 -16A))/4 This gives both sides b and h using plus then minus the square root
2h means two handed