A solid with a mass of 47g is placed in a graduated cylinder that contains 31mL of water. After the solid is placed in the water the volume of the water raises to 37 ml. What is the density of the solid?
a
b
1.3g/ml
7.8g/mL
1.5g/mL
0.79g/mL
d

Me i dont know what to do! the table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.