which response includes all of the following that are properties of most nonmetals, and no other...
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Which response includes all of the following that are properties of most nonmetals, and no other properties?I. Outer electronic shells contain four or more electrons. II. They tend to form positive ions. III. They are more likely to form ionic compounds than covalent compounds when they combine with other nonmetals. IV They have high electronegativities.
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1. I, II, and III
2. II and III
3. I and IV
4. II and IV
5. none of these answers
Which of the following is an alkaline earth metal?
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1. Zr
2. Sn
3. Ca
4. Li
5. Th
The "eka-silicon" of Mendeleev is now known as ______________.
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1. phosphorus, P
2. zirconium, Zr
3. tin, Sn
4. germanium, Ge
5. gallium, Ga
Which one of the following is a strong acid?
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1. HClO
2. (COOH)2
3. H3PO4
4. HSO3-
5. H2SO4
Which one of the following is an insoluble base?
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1. RbOH
2. Ba(OH)2
3. Al(OH)3
4. LiOH
5. KOH
Which one of the following salts is insoluble in water?
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1. Ca3(PO4)2
2. Pb(CH3COO)2
3. Al(NO3)3
4. FeBr3
5. Na2CO3
Which response includes all of the following compounds that are insoluble in water, and no others?I. Mg3(PO4)2
II. MgSO4
III. NaCNIV. Ni(ClO4)2
V. HCN
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1. I
2. I, II, and IV
3. III, IV, and V
4. IV and V
5. I, II, and V
Which one of the following is not a strong electrolyte?
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1. HBr
2. Sn(OH)2
3. KMnO4
4. Ba(OH)2
5. NaBrO3
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1. 2.
3.
4. 5.
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1. +1
2. -3
3. +3
4. -5
5. +5
What are the oxidation numbers (oxidation states) of the elements in H3PO4?
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1. H = +1, P = +7, O = -2
2. H = +1, P = +11, O = -2
3. H = +3, P = +5, O = -2
4. H = +1, P = +5, O = -2
5. H = +3, P = +4, O = -8
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1. H+
2. MnO4-
3. SO42-
4. Mn2+
5. S2O82-
Which of the following reactions is not a combination reaction?
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1. 2.
3.
4. 5.
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1. I and IV
2. I and II
3. II and IV
4. III and IV
5. IV
Write the formula unit equation for the reaction of the appropriate acid and base to produce the salt Mg(CH3COO)2. What is the sum of all coefficients? (Do not forget coefficients of one.)
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1. 8
2. 10
3. 12
4. 4
5. 6
Write the net ionic equation for the reaction of the acid and base needed to produce calcium carbonate. What is the sum of the coefficients? (Do not forget coefficients of one.)
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1. 6
2. 7
3. 3
4. 4
5. 5
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1. only I
2. only II
3. only III
4. only IV
5. II and III
Which of the following matched pairs of name and formula has an error?Formula / Name
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1. NaClO3 / sodium chlorate
2. NaNO2 / sodium nitrite
3. NaHSO4 / sodium hydrogen sulfate
4. Na2SeO4 / sodium selenite
5. Na3PO4 / sodium phosphate
Which of the following matched pairs of name and formula has an error?Formula / Name
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1. CuBr / cuprous bromide
2. Fe2O3 / iron(III) oxide
3. Cu(NO3)2 / copper(II) nitrate
4. SnO2 / tin(II) oxide
5. SnCl2 / stannous chloride