Drag each number to the correct location.
Sort the numbers based on the number of significant figures they have.
0.0093
120.9
1,000
1.008
670
0.184
1.30
One Significant
Figure
Two Significant
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Three Significant
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Four Significant
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answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.