2x-1≤x+5
2x≤x+6
x≤6
uhhh I hope that was easy to follow and it helped. anyways, just pretend the ≤ is a = and solve
The substance which is a combination of different atoms is a compound.
Sodium chloride is made from one sodium atom and one chlorine atom:
Sodium has a charge of +1, or just +.
Chlorine has a charge of -1, or just -.
These balance out.
