Answer:
Ionic bond
Explanation:
This type of chemical bond is called an ionic bond because the bond formed between two ions of opposite charge. The sodium cation (Na+) and the chlorine anion (Cl-) are attracted to one another to form sodium chloride, or table salt.
Atomic Theory can be used in two subjects, physics and chemistry.
Answer:
D. thymine, adenine, and cytosine (TAC)
Explanation:
DNA gets synthesised into an mRNA which gets synthesised into a peptide chain and eventually forms a protein.
In order to know where to begin joining up a peptide chain from amino acids, the protein-synthesis machinery searches for a start codon.
This is the three bases AUG, which code for the amino acid methionine.
Since the start codon in an mRNA is AUG, that means in the <u>DNA</u>, the initiation code will be <u>complementary</u>, so it will be TAC.
C. disposal of waste products continues to be a problem
Answer: Group 16 elements form ions with a 2 - charge.
Explanation: Therefore each of these elements would gain one electron and become an anion with 1 - charge.