Answer:
<em> 1</em>. A. 0
<em>2</em>. B. 7
<em>3. </em>C<em>.</em><em> </em>4
Explanation:
1. charge is equal to the number of protons minus the number of electrons!
2. neutrons is equal to mass number minus atomic number!
3. valence electrons equal 4!
Hope this helped you! :)
CH₃COOH-CH₃COO⁻ is a conjugate acid-base pair. NH₃-NH₂⁻ is another conjugate acid-base pair
They<span> combine as atoms, and separate as ions. When </span>sodium and chlorine<span> atoms come together to </span>form sodium chloride(NaCl<span>), </span>they<span> transfer an electron. The </span>sodium<span> (Na) atom transfers one electron to the </span>chlorine<span> (Cl) atom, so that </span>they<span>both have full outer shells. ... When this </span>happens<span>, the atom is called a positive ion.
What do think the answer is now?</span>
An exothermic reaction is a chemical reaction that releases heat. it does not absorb
