What is the molarity of 0.875 moles of HCL in 450.0 mL of solution?

Numbers with a end value of 4 or lower are rounded up, while with an end value of 5 or higher are rounded down. true or false?

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.