Unit 5 Review Chemistry PDF

Name: \_\_\_\_\_\_\_Zach\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Period: \_\_\_4\_\_\_\_\_\_ Date: Unit 5 Review Read each question carefully and then choose the one best response. +-----------------------------------------------------------------------+ | **1.** Name this compound: C...

Name: \_\_\_\_\_\_\_Zach\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ Period: \_\_\_4\_\_\_\_\_\_ Date: Unit 5 Review Read each question carefully and then choose the one best response. +-----------------------------------------------------------------------+ | **1.** Name this compound: CaCl~2~ | | | | **A.** Calcium chlorine **B.** Calcium Chloride **C.** Calcium | | Chlorate **D.** Chlorine Calcide | +=======================================================================+ | 2\. How many total atoms are there in one molecule of | | (NH~4~)~2~CO~3~? | | | | A. 9 B. 6 C. 14 D. 10 | +-----------------------------------------------------------------------+ 3\. Which of the elements below do not bond with other elements? **A.** argon **B.** iodine **C.** calcium **D.** tungsten 4\. When a group 17 element reacts with a group 1 element, what is the effect on the group 1 atom? **A.** It forms a double bond. **B.** It becomes positively charged. **C.** It becomes negatively charged. **D.** It shares its electron with the other atom. 5\. What do the dots represent around the elemental symbol in a Lewis dot model? **A.** The total number of electrons in the atom. **B.** The number of neutrons in the atom. **C.** The valence electrons held by that atom. **D.** The number of full electron shells that the atom has. 6\. What is this model called, and what does it show? **A.** Bohr Model; It shows the electrons for an element. **B.** Dalton Model; It shows the bonded electrons. **C.** Lewis Dot Model; it shows the valence electrons for an element. **D.** Thompson Model; it shoes the group number for an element. 7\. How is **Ca^2+^** different from a **Ca** atom? **A.** It is an isotope with two extra protons. **B.** It is an isotope with 2 extra electrons. **C.** It is an ion with 2 fewer protons. **D.** It is an ion with 2 fewer electrons. 8\. What is the chemical formula for iron (III) oxide? **A.** Fe~3~O~2~ **B.** Fe~2~O~3~ **C.** FeO **D.** Fe~3~O 9\. What is the name of the compound [*Pb*(*CO*~3~)~2~]{.math.inline}? **A.** Lead (II) Carbonate **B.** Lead (I) Carbonate **C.** Lead (IV) Carbonate **D.** Lead Carbonate 10\. What is the correct electron-dot formula for the compound magnesium fluoride? **A.**  **B.** **C.**  **D.** 11\. Which of the following correctly represents an ion pair and the ionic compound the ions form? **A.** Ca^2+^, F^-^ → CaF~2~ **B.** Na^+^, Cl^-^ → NaCl~2~ **C.** Ba^2+^, O^2-^ → Ba~2~O~2~ **D.** Pb^4+^, O^2-^ → Pb~2~O~4~ 12\. Which polyatomic ion has a positive charge? 13\. What makes metals good conductors? **A.** free moving electrons **B.** full valence shell **C.** empty valence shell **D.** magnetic properties 14\. What information does a molecular formula provide? **A.** the number and kind of atoms present in an ionic compound **B.** the number and kind of atoms present in a bond that transfers electrons **C.** the number and kind of atoms present in a covalent molecule **D.** the number and kind of atoms present in a metallic compound **A.** CO~3~ **B.** NH~4~ **C.** SO~4~ **D.** OH 15\. What is the ending for the names of all IONIC binary compounds? **A.** -ide **B.** -ite **C.** -ade **D.** -ate 16\. What is the correct Ionic structure formed from the following theoretical Lewis-Dot Structure of the following unknown elements? **A.** A~2~Z~7~ **B.** A~7~Z~2~ **C.** A~2~Z **D.** AZ~2~ 17\. Conductivity in a metal results from the metal atoms having **A.** highly mobile electrons in the valence shell. **B.** highly mobile protons in the nucleus. **C.** high ionization energy. **D.** high electronegativity.