Hydrogen, when combined with oxygen in a chemical reaction, forms water. this is an example of which type of chemical reaction? i think its single displacement but i am not sure.

100mg magnesium reacts with 20ml of 1.0m hcl

1) this is the structure in the cell nucleus that houses a cell's genetic information

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.