Multiple Choice|1. Ions that are formed from one atom are known asa. polyatomic ions.b. monatomic ions.c. cations.d. anions.2. A group of atoms united by covalent bonds is a(an)a. cation.b. molecule.c. ionic compound.d. octet.3. Ionic compounds are alwaysa. electrically neutral.b. made up of atoms that share electronsc. polyatomic cations.d. the same as molecules.4. To form a bond, atoms sharea. neutrons.b. protons.c. inner-shell electrons.d. valence electrons.5. A positively charged ion attracts a(an)a. neutral jon.b. cation.c. anion.d. proton.6. Ionic compoundsa. have high melting points.b. are brittle.c. are good conductors in their liquid state.d. all of the above.7. During a chemical reaction,a. new elements are produced.b. atoms are destroyed.c. atoms are rearranged.d. elements are destroyed.|8. An equation is balanced bya. changing subscripts.b. erasing elements as necessary.c. adding coefficients.d. adding elements as necessary.9. A reaction has two compounds as reactants and two compounds as products might be described as aa. direct combination reaction.b. single-replacement reaction.c. decomposition reaction.d. double-replacement reaction.10. An atom's ability to undergo chemical reactions is determined by itsa. Protons,b. Innermost electrons.c. Neutrons.d. Outermost electrons.

Note: As per the Guidelines, solution of first 3 questions has been made. For the expert solution of…

1. Ions that are formed from one atom are known as a. polyatomic ions. b. monatomic ions. c. cations. d. anions. 2. A group of atoms united by covalent bonds is a(an) a. cation. b. molecule. c. ionic compound. d. octet. 3. Ionic compounds are always a. electrically neutral. b. made up of atoms that share electrons c. polyatomic cations. d. the same as molecules.

1. Ions that are formed from one atom are known as a. polyatomic ions. b. monatomic ions. c. cations. d. anions. 2. A group of atoms united by covalent bonds is a(an) a. cation. b. molecule. c. ionic compound. d. octet. 3. Ionic compounds are always a. electrically neutral. b. made up of atoms that share electrons c. polyatomic cations. d. the same as molecules.

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter4: Molecules, Compounds, And Chemical Reactions

Section: Chapter Questions

Problem 61E

See similar textbooks

Similar questions

What is a chemical bond? Explain the difference between an ionic bond and a covalent bond.
What is the difference between molecular compound and ionic compound? Cite some examples that can be found in our home.
What is chemical compound and chemical formula? What are the significant concepts about them?
What is atom? molecule? compounds? definition, structure and examples? The structure of atoms?
Which statement is incorrect? A. All molecules are compounds but not all compounds are molecules. (Semua molekul adalah sebatian tetapi tidak semua sebatian adalah molekul.) B. A molecule is formed when two or more atoms join together chemically. (Molekul dibentuk apabila dua atau lebih atom bergabung bersama secara chemical.) C. A compound is a molecule that contains at least two different elements. (Sebatian adalah molekul yang mengandungi sekurang-kurangkan dua unsur yang berbeza) D. All compounds are molecules but not all molecules are compounds. (Semua sebatian adalah molekul tetapi tidak semua molekul adalah sebatian.)
Classify each compound as ionic or molecular: a.COb.ZnBr2c.CH4d.NaF
Is it possible for the same Iwo elements to form more than one compound? Is this consistent with Dalton’s atomic theory? Give an example.
Which of the following statements is/are always true? Never true? Usually true? (a) Compounds containing chlorine can be either molecular or ionic. (b) An ionic compound always has at least one metal. (c) When an element in a molecule has a di prefix, it means that the element has a +2 charge.
2.71 Use the web to determine the amount of low-density polyethylene and high-density polyethylene produced annually in the United States. Which uses predominate in the applications of these two materials?
The “Chemistry in Focus” segment Sugar of Lead discusses Pb(C2H3O2)2 , which originally was known as sugar of lead. Why was it called sugar of lead? What is the systematic name for Pb(C2H3O2)2? Why is it necessary to have a system for the naming of chemical compounds?
These questions concern the work of J. J. Thomson: From Thomson’s work, which particles do you think he would feel are most important in the formation of compounds (chemical changes) and why? Of the remaining two subatomic particles, which do you place second in importance for forming compounds and why? Come up with three models that explain Thomson’s findings and evaluate them. To be complete you should include Thomson’s findings.
Acetaminophen, whose structure is drawn below, is the active ingredient in some nonprescription pain killers. The recommended dose for an adult is two 500-mg caplets. How many molecules make up one dose of this drug?