3Ni + Sn3(PO4)2 → Ni3(PO4)2 + 3Sn I think. Not for sure though
I believe the answer is D because warm water generally has more nutrients than cold water.
It does not improve the nutrients so it isn't B or C.
Hope this helps!
Table salt is a compound because Sodium (Na) and Chlorine (Cl) were combined to make a new group.
To determine the mass of the sample, first find the volume difference after and before the aluminum was placed, the volume change is equal to the volume of the submerged object, in this case aluminum.
Then knowing volume of aluminum and the density of it, we can solve for the mass.
D = m/v
Dv = m
2.7 g/ml • 8 ml = 21.6 grams.
The first one is correct cause first of all it's atomic number is 7 and second of all it's atomic mass is about 15
