Q unknown = -Q H2O
Q H2O= (100g x 4.18 J/g C x (25C - 20C)
Q H2O = 2090J
-2090J = (50g x c x (25C-90C)
-2090J = -3250c
.64 = c
I am a high school student and have done this problem a few months ago for my test, hope this helps
2.a)R b)R c)L d)L e)R f)L g)L
Answer:
B B B B B B B B B B B B B B B B B B B B B B B B
b is not cell theory
Answer:
The answer to your question is:
Explanation:
Atomic radii Electronegativity
1.- Neon - Neon -
2.- Xenon - Cf -
3.- Fr - Eu -
4.- Ra - Fr 0.7
5.- Cf - Cs 0.79
6.- Se 116 Ra 0.9
7.- Si 118 Mg 1.31
8.- Ge 123 Nb 1.60
9.- Zn 133 Zn 1.65
10.- Nb 143 Bi 1.90
11.- Sb 145 Si 1.90
12.- Bi 155 Ge 2.01
13.- Mg 160 Sb 2.05
14.- Eu 199 Se 2.55
15.- Cs 265 Xe 2.60
Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.