Mass is measured against a standard by using a balance.
a. true
b. false

Why do cells appear different in distilled water than they do in 10% salt water?

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

The sum of the oxidation numbers in a neutral compound is always