Answer:
14b
Step-by-step explanation:
2 * 7b
2*7 b
14b
B. When NaCl (table salt) dissolves in water, the change is endothermic. Yet, when added to water, it dissolves without added energy (spontaneously) over a wide range of temperatures. How can this be? (2 points)
The answer to this is 8.
You can solve this by divide 64 into 8.
64/8=8
z=8
4.5 I think if not you can just look up the surface area of 9
It is rounded to 20 because 23 is more closer to 23 than 30