You are provided with oxalic acid you're required to carry out the tests below. i)Place a little of the oxalic in a metal spatula and ignite it. Give the observation and inference

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.

How does carbon monoxide pose the greatest threat to humans? a. it can be produced by wood fires. b. it can be produced by home furnaces. c. it is produced by acid rain. d. it is produced by modern automobiles.