Answer:
francium
Explanation:
sulfur is nonmetallic so is nitrogen and silicon
Answer:
the answer is a) pure substance
Explanation:
water is natural
1. Atom, 2. Alexandria, 3. Element, 4. Metals, 5. Nonmetals, 6. Compound
Need more of a backstory to this?
The correct answer is option 1. The balanced reaction represents that a bond is broken and energy is absorbed. Cl2 are held by covalent bonds that are strong. Therefore, energy is required to break these bonds. The energy supplied is absorbed for the reaction to proceed.