What is added to the name of a base unit to indicate a fraction or a multiple of the base unit?

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.

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

What is the molar mass of a gas that has density of 2.054 g/l