When seawater evaporates, its sodium and chlorine are electronically attracted to one another and crystallize into ___.       

Sedimentary rock that becomes deeply buried may be transformed by heat and pressure into _______ rock.  

Using the analogy of stairs versus a ramp explain the concept of quantized energy required for electrons to move to higher energy levels.              (3 marks)

isotopes are atoms:

The development of synthetic polymers, such as plastics, has made the development of a wide variety of products possible. Unfortunately, our use of large amounts of plastics has negative impacts on our environment. Describe one negative impact our use of plastics has had on the environment.   (2 marks)

It is important to handle and store organic compounds, such as ethers, carefully because:

Name the following hydrocarbons. In case you can’t see them well, that is a double bond in b) and a triple bond in c).   (3 marks)

The temperature-time graph above represents the distillation of a mixture of unknown alcohols and water. Explain how you can use a temperature-time graph of a distillation to determine what compounds are present in an unknown mixture.  (3 marks)

Elements produce an emission spectrum when:

In a single displacement reaction to determine if magnesium, Mg, would replace calcium, Ca, in calcium chloride, CaCl2, you would: