They usually have a pin or locking knob, you either push it in or hold it in while you loosen the blade retaining nut, some you might have to remove the shield or guard, older saws might not have...
The sliding compound mitre saw slides up to or around 12 inches wide. the other doesn't slide and can only go straight up and down and only cut about 7 inches wide
Molecular compounds are 'simple' molecules that have weak forces acting between them, for example water and hydrogen which only possess few atoms. Whereas ionic compounds are compounds which use...