I am pretty sure u have pictures and this one should be the one that erika should make
Because Na+ has less electrons than Na which means Na+ will be a smaller atom (give me brainliest please)
M=D*V,
V=m/D
m=15 g
D=3 g/ml
V=15 g/3 g/ml=5 ml
The kind of thermochemical equation represented below
that is
CaO(s) + H2O (l) = Ca(OH)2 (s) +65.2 kj
is exothermic ( answer B)
This is because its heat energy has a + sign meaning that heat is released by the reaction above.
Answer:
bromine is a liquid non metal...
