Answer:
Oxygen.
Explanation:
The copper must be combined with something in the air.
Answer: A substitution is a mutation that exchanges one base for another (i.e., a change in a single "chemical letter" such as switching an A to a G). Such a substitution could: change a codon to one that encodes a different amino acid and cause a small change in the protein produced.
Explanation: I know this is correct just trust me and please mark me as brainiest.
Answer:
here
Explanation:
(NH4NO3), a salt of ammonia and nitric acid, ....4 and 3 are sub script
A neutralization reaction is a chemical reaction where an acid and a base are combined with the intent of producing a neutral pH level.
The mass number of aluminium hydroxide is 78 thus, the number of moles in 0.745 g is:
no. of moles= mass/ RFM
= 0.745/78
=0.00955moles
Therefore the 0.00955 moles should be in the 35.18 ml
therefore 1000ml of the solution will have:
(0.00955ml×1000ml)/35.18
=0.2715moles
The solution will be 0.27M hydrochloric acid
