Joan took magnesium metal and put it into a beaker of concentrated hydrochloric acid. She noticed that the magnesium bubbled rapidly, saw a lot of smoke being formed, and watched the metal dissappear rather quickly. What would be the result if Joan were
to use a lower concentration of HCL?
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What forms when chemical reactions combine pollution with sunlight?

What is a metal replacement reaction

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