Hi can someone help me

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

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