Hi!
You would not want to use a stopper when<span> combining two unknown substances because the gasses made from the combination could end up creating to much pressure and explode.</span>
Yes, using the method of pemdas can reroute the gps
A mole is a unit to describe an amount of something/specific substance. Typically standard for measuring a large quantity of small entities like atoms, molecules, or other particles.
When an ionic is placed in water a dissolving reaction occurs so the positive or negative ion are only attracted to each other
