What safety procedural step must always be performed when setting up a vacuum filtration apparatus?

The safety procedural step that must always be performed when setting up a vacuum filtration apparatus is that first, you should always wear the proper protective equipment, next is that the vacuum filtration—you should clamp the flask of which is needed, securely to the ring stand. It must be secure or it may be in the way of performing the experiment.

d bonding propertys

explanation:

carbon can form so many different compounds not just with oxygen

the framers of the constitution insisted that federal judges be nominated instead of elected due to their desire to have judges above the shifting whims of the masses.

the hope, whether achieved or not, was that federal judges would only be beholden to the law and that by not having judges be elected, they would be protected if that law dictated an outcome that ran counter to popular opinion.