NEW
Font size
WorksheetsFlame Test Lab
Total questions: 11
Worksheet time: 8mins
What was the identity of the unknown substance?
LiCl
CaCl2
NaCl
BaCl2
SrCl2
The taste of each substance is an example of what type of property?
Physical
Chemical
The mass of each substance would be an example of what type of property?
Physical
Chemical
Which option below best describes the substances in each tray?
Pure substance - element
Pure substance - compound
Mixture of element & compound
Mixture of elements
Why is it necessary to put the elements in the fire in order to see their colors?
To excite their electrons, causing them to emit characteristic colors.
The fire burns the splint.
The colors are visible due to the heat of the fire.
If you mixed two random trays of substances from this lab together, which of the following options might represent that mixture?
Which block model could represent SrCl2?
Which block model could represent Na2SO4?
A fellow student of yours thought that flame color was based on the element written at the beginning of the compound. Which statement would give evidence to support their claim?
The flames of LiCl and and NaCl are the same color
The flames of LiCl and NaCl are different colors
The flames of Na2SO4 and NaCl are different colors
The flames of Na2SO4 and CuCl2 are different colors
A fellow student of yours thought that flame color was based on the element written at the end of the compound. Which statement would give evidence to support their claim?
The flames of LiCl and and NaCl are the same color
The flames of LiCl and NaCl are different colors
The flames of Na2SO4 and NaCl are different colors
The flames of Na2SO4 and CuCl2 are different colors
Which scientific principle would be most useful to connect your claim to your evidence in this lab?
Chemical properties can only be observed by changing the identity of the substance
A chemical change results in a new substance
A physical change does not produce a new substance
Physical properties can be observed without changing the identity of the substance
