Answer:
Here are some of the differences between a mixture of iron and sulfur, and iron sulfide: the mixture can contain more or less iron, but iron sulfide always contains equal amounts of iron and sulfur. the iron and sulfur atoms are not joined together in the mixture, but they are joined together in iron sulfide.
Explanation:
Ionic bonds form when a nonmetal and a metal exchange electrons, while covalent bonds form when electrons are shared between two nonmetals. An ionic bond is a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions.
Answer:
moles of water in 1 ml = 1/18 mol.
take 1 ml and calculate it by 30
1 ml x 30= 30 ml
Explanation:
Answer:
Option (B) SnS2
Explanation:
Data obtained from the question include:
Mass of Sn = 18.5 g
Mass of S = 10 g
The empirical formula of the compound can be obtained by doing the following:
Step 1:
Divide each element by their molar mass
Sn = 18.5/ 118.7 = 0.156
S = 10/ 32.07 = 0.312
Step 2:
Divide each by the smallest number
Sn = 0.156/0.156 = 1
S = 0.312/0.156 = 2
The empirical formula is SnS2