Decide which model best represents the relationship between Earth and the sun and what causes day and night. Explain your choice Materials
-round objects
- flashlight
-table lamp

17) large amounts of very important metal titanium are made by reacting magnesium metal with titanium tetrachloride. titanium metal and magnesium chloride are produced. a) write the balanced equation for this reaction. b) how many kilograms of magnesium are required to produce 1.00 kilograms of titanium? ( show work, .)