The answer is 15 bc you multiply the coefficient but the subscript
Na⁺¹₃P⁺⁵O⁻²₄
+1*3 + (+5) + (-2*4) = 0
Answer:
the answer is A hope this helps
Matter is a slightly archaic word for something with mass, as in the conservation of matter (which must be paired with the conservation of energy to still hold true. Mass can be converted back and forth between energy, so therefore so can matter. Of course relativistic mass is conserved as it's a function of the energy of an object in that reference frame.
Most transition metal form more than one cation but aluminum forms the Al3+ cation only.
