Name________________________________________________Period______ 8th Grade End of Year Study Guide Chemistry How are atoms related to molecules? Has our theory of atomic structure ever changed? If so, why? How many protons, neutrons, and electrons does phosphorous have? Protons: Neutrons: Electrons: How many protons, neutrons, and electrons does arsenic have? Protons: Neutrons: Electrons: How many protons, neutrons, and electrons does flourine have? Protons: Neutrons: Electrons: How many protons, neutrons, and electrons does copper have? Protons: Neutrons: Electrons: How many protons, neutrons, and electrons does boron have? Protons: Neutrons: Electrons: How do we decide which substances to use for a particular function? Why do we use rubber for tires? Why do we use diamonds for drill bits? Why do we use helium and not hydrogen in balloons? How could you change a solid to a gas? How could you change a gas to a liquid? How could you change a liquid to a solid? How could you change a liquid to a gas? How are temperature and density related? If you heat up a balloon, what happens to its density? What are 4 phenomena could indicate that a chemical reaction has taken place? What natural resource did your synthetic substance come from? Why is your synthetic material better than the natural material? Draw what a solid, liquid, and gas would look like in a beaker. Which state is generally the most dense and why? 9,756 grams of a substance occupy 35,000 cubic centimeters of space. Calculate the density of the substance.
Name________________________________________________Period______ 8th Grade End of Year Study Guide Chemistry How are atoms related to molecules? Has our theory of atomic structure ever changed? If so, why? How many protons, neutrons, and electrons does phosphorous have? Protons: Neutrons: Electrons: How many protons, neutrons, and electrons does arsenic have? Protons: Neutrons: Electrons: How many protons, neutrons, and electrons does flourine have? Protons: Neutrons: Electrons: How many protons, neutrons, and electrons does copper have? Protons: Neutrons: Electrons: How many protons, neutrons, and electrons does boron have? Protons: Neutrons: Electrons: How do we decide which substances to use for a particular function? Why do we use rubber for tires? Why do we use diamonds for drill bits? Why do we use helium and not hydrogen in balloons? How could you change a solid to a gas? How could you change a gas to a liquid? How could you change a liquid to a solid? How could you change a liquid to a gas? How are temperature and density related? If you heat up a balloon, what happens to its density? What are 4 phenomena could indicate that a chemical reaction has taken place? What natural resource did your synthetic substance come from? Why is your synthetic material better than the natural material? Draw what a solid, liquid, and gas would look like in a beaker. Which state is generally the most dense and why? 9,756 grams of a substance occupy 35,000 cubic centimeters of space. Calculate the density of the substance.
8th_year_end_review_2018.docx