Exam (elaborations)
Chapter 10 ALEKS Questions and Answers 100% Solved
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Exam of 22 pages for the course ALEKS at ALEKS (Chapter 10 ALEKS)
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Chapter 10 ALEKSElement
1
is a hard silvery-gray solid. A
×5cm5cm
square of it, only
1mm
thick, is flexed slightly by hand, putting a slight bend in the middle of the square. -
answerMetal
Element
2
is a shiny silvery-gray solid. A small cube of it is put into a ceramic crucible and heated
strongly. It melts about not far above room temperature. - answerCant Decide
Element
3
is a moderately soft silvery-gray solid. Wires are fastened to each side of a
2cm
slab of it, and an ordinary household
9V
battery is hooked up so that it can feed electricity through the slab to an LED. But the
LED stays dark. - answerNonmetal
Element
1
is a moderately soft silvery-gray solid. A
×5cm5cm
square of it, only
1mm
thick, is flexed slightly by hand. The sheet snaps in half. - answerNonmetal
Element
2
is a hard silvery-gray solid. Wires are fastened to each side of a
2cm
slab of it, and an ordinary household
9V
battery is hooked up so that it can feed electricity through the slab to an LED. The LED
glows brightly. - answerMetal
,Element
3
is a moderately soft silvery-gray solid. A
×5cm5cm
square of it, only
1mm
thick, is heated with a flame at one end. The square becomes warm and starts to
soften all over. - answerMetal
Element
1
is a hard silvery-gray solid. A
10.g
cube of it is tapped lightly with a small hammer. One corner of the cube breaks off into
3
-
4
pieces and a collection of small bits. - answerNonmetal
Element
2
is a moderately soft silvery-gray solid. A
×5cm5cm
square of it, only
1mm
thick, is twisted using two pairs of pliers, giving it a slight curve. - answerMetal
Element
3
is a shiny silvery-gray solid. Wires are fastened to each side of a
2cm
slab of it, and an ordinary household
9V
battery is hooked up so that it can feed electricity through the slab to an LED. The LED
glows brightly. - answerMetal
F=O=F - answerNo, 20
H-C-C-H - answerNo, 10
N-O-Cl - answerNo
H-H-O - answerNo, H, O
C=O - answerNo, 10
, H-C=C-H - answerYes
O
H-C-H - answerYes
N-N=N ^- - answer
O-C-O - answerno, 16
[Cl=O]^- - answerNo, 14
H-C=N - answerno, N
O=O=O - answerNo, 18
N-N - answerNo, N, N
[H-C=C]^- - answerYes
H=Br - answerNo, 10
H-Br - answerYes
(N^- 3) - answer2, Linear
(BrO^- 3) - answer4, Tetrahedral
(IF^- 4) - answer6, Octahedral
HNO - answer3, Trigonal Planar
(Br^- 3) - answer5, Trigonal Bipyramidal
PF3 - answer4, Tetrahedral
XeF4 - answer6, Octahedral
O3 - answer3, Trigonal Planar
BrF3 - answer5, Trigonal Bipyramidal
CO2 - answer2, Linear
(NH^+ 4) - answer4, Tetrahedral
BH3 - answer3, Trigonal Planar
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