Answer:
C. Mass relationships
Explanation: hope this helped
Ionic bonding which is the attraction between the cations(metal) and anions (non metal).
Metallic bonding is the electrostatic force of attraction between the fixed cations and the delocalized electrons.
As common sense dictates, Mohs Scale is based on the fact that a harder material will scratch a softer one. By using a simple scratch test, you can determine the relative hardness of an unknown mineral.
The addition of sodium chloride to pure water causes the conductivity to INCREASE. The more NaCl present in the water, the higher the conductivity is because NaCl is an electrolyte. Once dissolved in water, it becomes Na and Cl which are corpuscles that conduct electricity.
Non-renewable resources, such as coal, produce harmful gasses, such as carbon monoxide, polluting the air and decreasing air quality.
