Answer:
The lowest temperature at which a substance melts
Explanation:
Because if you change two things then you do not know which one has affected or altered the dependent variable. if you only change one then you know what exactly changed and why
I think it’s C atomic radius and numbers of unshielded protons
Answer:
Ionic
Explanation: Ionic compounds tend to be hard and brittle while covalent compounds tend to be softer and more flexible.
Hope this helped!
Answer:
The answer is in the picture below
Explanation:
