Answer: Because hydrogen is a gas.
Explanation: If children were running around with balloons filled with hydrogen gas, then they would catch fire. So the answer to your question is, its simply dangerous.
Calcium will form ions with a charge of +2
Answer:
Atoms come together to form molecules because of their electrons. Electrons can join (or bond) atoms together in two main ways. When two atoms share electrons between them, they are locked together (bonded) by that sharing. These are called covalent bonds
Answer:
DO NOT TASTE IT, but all the rest are correct
Explanation:
This can be seen in many ways depending on the situation at hand. Also the concern the counselor has for the problem is a key factor.
