The law of conservation of matter states that matter can be neither created nor destroyed.

your friend shows you the following chemical equation:

caco3→ cao + co2

he says that because the oxygen atoms are split between two different molecules in the products, the equation does not support the law of conservation of matter. is your friend right? explain your answer.

this is a good question! i'll do some research and come back when i have the answer!

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully

characteristics of hydrocarbons