Free Exam: SHS LBC Chapters 4 & 5 Test Form A
Number of Questions in Test: 50
Number of Questions in Preview: 5
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A flame test with calcium chloride, LiCl, produces a red color. A flame test with sodium chloride NaCl produces a yellow-orange color. What color would you expect in a flame test with lithium sulfate, Li[sub]2[/sub]SO[sub]4[/sub]?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 2
Base your answers to question on your knowledge of chemistry and the bright-line spectra produced by four elements and the spectrum of a mixture of elements represented in the diagram below.
[cmimg]0/7172241_SKM6QWX1.png[/cmimg]
Which elements are present in this mixture?
[cmimg]0/7172241_SKM6QWX1.png[/cmimg]
Which elements are present in this mixture?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 3
Base your answers to the following question on your knowledge of chemistry and the bright-line spectra produced by four elements and the spectrum of a mixture of elements represented in the diagram below.
[cmimg]0/7172241_SKM6QWX1.png[/cmimg]
Each line in the spectra represents the energy____.
[cmimg]0/7172241_SKM6QWX1.png[/cmimg]
Each line in the spectra represents the energy____.
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 4
How many valence electrons does calcium have?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |
Question 5
How many core electrons are in an element in Period 2 of the periodic table?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | Yes |