Write down the equations for the reaction of hydrochloric acid with metals with the given symbols or mark that no reaction takes place. Take advantage of a range of metal activities a) Cu

b) Ag

c) Al

d) K

Which of the following best describes the formation of plasma?

What is a property of a double 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