A. ionic bond
B. hydrogen bond
C. covalent bond
Answer:
Radiation oncologist.
Explanation:
Cancer is one of the most deadly disease and half of the world population died due to cancer every year. Cancer might occur due to the mutation in the genes that control the cell cycle.
The oncologist may be defined as the individual that has specialized in the cancer and its treatment. The different radiation might use to kill the cancerous cell and the radio elements are administered in the drugs used during the chemotherapy.
Thus, the answer is radiation oncologist.
Explanation:
According to reaction, 2 atoms of aluminum gas reacts with 3 molecules of chlorine gas.
Then 20 atoms of aluminum will react with :
of chlorine
Aluminum is a limiting reagent.
Molecules of chlorine left unreacted: 45 - 30 molecules = 15 molecules
Then 15 molecules of chlorine gas will react with :
of aluminum
10 more atoms of aluminum will required to use up all chlorine.