Answer:
<em>The elements of Group VIIA (new Group 17 – fluorine, chlorine, bromine, iodine, and astatine) are called the halogens (tan column). The term “halogen” means “salt-former” because these elements will readily react with alkali metal and alkaline earth metals to form halide salts</em>
Answer:
Mg(s) + 2H⁺ → Mg²⁺(aq) + H₂.
Explanation:
- To obtain the overall reaction, we sum the two half-reactions and omit the similar species in the reactants and products sides.
oxidation reaction:
Mg(s) → Mg²⁺(aq) + 2e.
Reduction reaction:
2H⁺ + 2e → H₂.
- So, we add the two half-reactios and obtain the overall reaction:
<em>Mg(s) + 2H⁺ → Mg²⁺(aq) + H₂.</em>
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Answer:
A piece of DNA from the father carried the trait for blue eye color
I think it is calcium carbonate, from sedimentary rocks and such
