Time such as minutes, days, and months will always be a(n)....... INDEPENDENT variable
The answer is C. there are two potassium ions for each ion of sulfur
A= 6
B= 2
C= 1
D= 5
E= 3
F= 4
Covalent compounds are composed of atoms that are linked via covalent bonds i.e. bonds formed by mutual sharing of electrons. This is in complete contrast to ionic compounds which are held together by ionic bonds, i.e. bonds formed by complete transfer of electrons from one atom to the other.
In the given examples we have:
Barium nitrate: Ba(NO3)2 - Ionic
Dinitrogen tetroxide: N2O4- Covalent
Boron trifluoride: BF3-Covalent
Ammonium sulfate: (NH4)2SO4- Ionic
Carbon tetrachloride: CCl4- Covalent
Barium chloride: BaCl2 - Ionic
Steel is an alloy and consists of more than one element (mainly iron and carbon), therefore steel is a mixture.