1. A rock is a solid formation occurs naturally in earth
2. A mineral is a chemical composition
3. Idk srry
The middle is noble gases the first one is alkaline metals and then the last one is the only one left
Answer:
They are salts, ionic compounds
Explanation:
To know if they are covalent or ionic we need to check their difference in electronegativity. As an example mgcl2, mg has electronegativity of 1.2 and cl 3 so 3-1.2=1.8 which is bigger than 1.7 means it's ionic therefore they are salts
Answer:
The answer might be 4, been a while since I've done third grade math though.
Answer:
600K
Explanation:
PV=nRT
T=PV/nR
= 1.6atm* 15.0L/ 0.5mol*0.0821LatmK^-1mol^-1
=600K
