Answer:
<em>A</em>. Arsenic
Explanation:
Arsenic is a metalloid. Arsenic has properties of both metals and non-metals that is why it is a metalloid.
Potassium, chlorine, and indium do not have both properties of metals and non-metals, therefore they are not metalloids.
Baking soda neutralizes the acid so D
Answer: helium
Explanation:
Edit: im really sorry i thought i was answering a different question.
I belive its 4.76 because it would not be 0.55
The law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed. Hence, the quantity of mass is "conserved" over time.
