Go to the Quizzes Page Molecular Structure 0% 2 Created by AbuBakrShalabi Please write your name and email to receive your certificate. 1 / 20 A covalent compound is formed from ____________. charged particles metal elements a metal and a nonmetal nonmetal elements 2 / 20 Diamond and graphite are made up of carbon atoms, but they have different chemical and physical properties. They differ by having different ___________. types of bonded elements physical states of matter type of carbon atoms extended structures 3 / 20 Sugar dissolve in water because of The sugar molecules are heavy The sugar molecules are small and light The water a strong liquid The polar water molecules attract the negative and positive areas on the polar sucrose molecules 4 / 20 A .................. is a characteristic of matter that can be measured without changing the type of matter. physical property chemical property mechanical property physical change 5 / 20 All the following examples are elements EXCEPT ________. helium (He) hydrogen gas (H2) magnesium (Mg) water (H2O) 6 / 20 What are the common properties of metals? They are good conductors of heat and electricity They are poor conductors of heat and electricity They are brittle They are malleable 7 / 20 Which of these combinations is an ionic compound made of? Metal and Nonmetal Nonmetal and Nonmetal Cation and Cation Metal and Metal 8 / 20 Boron conducts electricity at high temperatures, but it is an insulator at room temperature. Which statements are TRUE about boron? Boron is a metalloid Boron is a compound. Boron is a metal. Boron is a nonmetal. 9 / 20 Which of the following is NOT true about an ionic compound? is mostly soluble in water is formed from oppositely charged particles has extended structures is formed from nonmetal elements 10 / 20 Why does oil not dissolve in water? Oil is an extended structure, and water is made of polar molecules. Oil is made of nonpolar molecules, and water is made of polar molecules. Oil is an extended structure, and water is made of nonpolar molecules. Oil is made of polar molecules, and water is made of nonpolar molecules. 11 / 20 Which of the following has partial charges? polar covalent compound nonpolar covalent compound element ionic compound 12 / 20 Which of the following is NOT a property of a metal? malleable shiny poor conductor of heat and electricity ductile 13 / 20 What does the term 'malleable' mean? The substance can be drawn into wires The substance can be hammered or pressed into a shape without it breaking The substance has no effect if pressed or hammered The substance will break or fracture if a large force is applied (such as hammering) 14 / 20 What is the meaning of molecules? atoms can from complex molecules that range size one group of compound is ionic compounds that some elements are molecules a group of atoms that are held together by chemical bonds and act as a unit 15 / 20 What are the common properties of non-metals? They are good conductors of heat and electricity They are brittle They are poor conductors of heat and electricity They are malleable 16 / 20 Water molecule is made of ................. 2 hydrogen atoms and one oxygen atom 1 hydrogen atom and 1 oxygen atom 2 oxygen atoms and 2 hydrogen atom 2 Nitrogen atoms and one oxygen atom 17 / 20 When two or more different elements combine chemically, a new substance forms. This new substance is called a(n) ____________. nonmetal element compound metal 18 / 20 Which property of metal makes it useful for electrical wires? has high melting point shiny malleable ductile 19 / 20 Silicone is a metalloid used in computers and electronic chips because it is __________. shiny a poor conductor of electricity a semiconductor a good conductor of electricity 20 / 20 Sugar and water are polar molecules False True Your score is 0% Restart quiz Go to the Quizzes Page