Answer:
D.) magnesium and sulphur
Explanation:
Generally, ionic bonds form between a metal and a nonmetal.
Generally, covalent bonds form between two nonmetals.
Generally, metallic bonds form between two metals.
Nonmetals are located on the right side of the periodic table (apart from the noble gases in the final column). Hydrogen is also a nonmetal. Metals are every other element in the periodic table.
A.) Hydrogen (nonmetal) and carbon (nonmetal) = covalent
B.) Aluminum (metal) and magnesium (metal) = metallic
C.) Silicon (nonmetal) and chlorine (nonmetal) = covalent
D.) Magnesium (metal) and sulphur (nonmetal) = ionic
Answer:
electroplating
Explanation:
Electroplating means coating a metal into zinc to protect from rust
Sacrificial protection is the protection of iron or steel against corrosion by using a more reactive metal
Specific heat capacity= Quantity of heat/massxΔT
Shc of iron (constant)= 0.4494J/³C for 1g
1.49kg=1490g
Q=1490x(22-155)x0.4494
Q=<span>89057.598J</span>
