Complete the following conversions between si units.
(a) 612 g =
(b) 8.160 m=
(c) 3779 âµg=
(d) 781 ml =
(e) 4.18 kg =
(f) 27.8 m =
(g) 0.13 ml=
(h) 1738 km =
(i) 1.9 gg=

For a:  

For b:  8.160 m = 816.0 cm

For c:  

For d:  781 mL = 0.781 L

For e:  4.18 kg = 4180 g

For f:  27.8 m = 0.0278 km

For g:  

For h:  

For i:  

Explanation:

Units is defined as the standard which is used to make comparisons between the measurements.

For the given options:

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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.