1. <span>low melting point
2. </span>positive <span>ion
3. </span><span>There are 2 bromine atoms for every magnesium atom.
4. </span><span>The name of the positive ion.
5. </span>Sodium sulfide<span>
6. </span><span>A covalent bond with 2 pairs of shared electrons.
7. </span>valence electrons<span />
Half-life<span> is the time required for a quantity to reduce to half its initial value. </span><span>If four half-lives have elapsed for calcium-45, then it would be 4x162.7 = 650.8 days have passed. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
The CNO cycle<span> (for </span>carbon–nitrogen–oxygen<span>) is one of the two known sets of fusion reactions by which stars convert hydrogen to helium, the </span>other<span> being the proton–proton chain reaction. Unlike the latter, the CNO </span>cycle<span> is a catalytic </span>cycle<span>.</span>
Answer:
The answer is weathering.
Explanation:
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D. Two or more of the same type or different types of atoms.