Which statements explain how scientists can use the similarities between current species and extinct organisms? (Select all that apply.)
O Scientists can build lineage maps and determine which species come from extinct species.
Scientists can research why the extinct species died out and also learn about the conditions on Earth
U at the time.
O Scientists can build lineage maps that show which animals ate which plants
D Scientists can research which animals survived certain conditions and then mnodify existing animals.

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of carbon is as shown here in the image.

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.

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.