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Exam 2: Atoms, molecules, and Ions

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Question 101

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In the following drawings,shaded spheres represent cations and unshaded spheres represent anions. -Which drawing represents the ionic compound RbClO₄?

A) drawing (a)
B) drawing (b)
C) drawing (c)
D) drawing (d)

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Question 102

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The gas Freon-11,CCl₃F,contains

A) C⁴⁺,Cl^-,and F^- ions.
B) C⁴⁺,Cl₃^-,and F^- ions.
C) C⁴⁺ and Cl₃F^4- ions.
D) CCl₃F molecules.

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Question 103

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If shaded and unshaded spheres represent atoms of different elements,as shown in drawing (1) ,which drawings (2) -(4) represent the law of multiple proportions?

A banana split is an example of

Three atoms have the following properties. Which of the following statements is true?

Which of the following elements has chemical properties similar to oxygen?

In which of the following sets do all species have the same number of electrons?

Use the periodic table below to answer the following questions. -In which pair are both formulas of binary fluorides of element D correct?

Which of the following represent isotopes? A: [ ] B: [ ] C: [ ] D: [ ]

In the following drawings,shaded spheres represent cations and unshaded spheres represent anions. -Which drawing represents the ionic compound BaF₂?

Which of the following elements is a good conductor of heat and electricity?

Which of the following is the correct chemical formula for a molecule of iodine?

Which element can form more than one kind of monatomic ion?

________ does not combine with any other element.

An element has two naturally occurring isotopes.One has an abundance of 37.4% and an isotopic mass of 184.953 amu,and the other has an abundance of 62.6% and a mass of 186.956 amu.What is the atomic weight of the element?

Which group of elements reacts violently with water?

By analogy with the oxoanions of sulfur,H₂TeO₃ would be named

Which of the following statements does not describe a physical property of chlorine?

A property that depends on the amount of a substance is an ________ property,whereas a property that is independent on the amount of substance is an ________ property.

Phosphate ion has the formula ________.