Alveoli. I don't know what a nephron is but neurons and synapses are in the brain.
I believe the answer is an ion.
Answer:
D.) Mg(NO₃)₂
Explanation:
Since magnesium (Mg) is a metal and nitrate (NO₃) is a polyatomic anion, they would combine to form an ionic compound. Magnesium would form the cation Mg²⁺ because it generally has 2 valence electrons. Nitrate always has a -1 charge.
In order for the overall compound to be neutral (have a charge of 0), there must be one Mg²⁺ and two NO₃⁻ ions in the compound (+2 + (-1) + (-1) = 0).
Therefore, the formula for the compound formed is Mg(NO₃)₂.
One of the atoms involved must be a metal and the other a nonmetal
Answer:
single replacement reaction is type of reaction is Au2S+H2---> 2Au+H2S.
