Explanation:
For multiplication or division, the rule is to count the number of significant figures in each number being multiplied or divided and then limit the significant figures in the answer to the lowest count.
a. 20.0 meters x 0012.65 meters
The numbers are;
20.0 (3 s.f) and 12.65 (4 s.f)
The multiplication gives; 253
Since 253 is already in 3 s.f, that's the answer.
b. 002.5 × 103 meters + 3.50 × 102 meters
The numbers are;
002.5 (2 s.f), 103 (3 s.f), 3.50 (3 s.f) and 102 (3 s.f)
002.5 × 103 = 257.5 = 260 (2 s.f)
3.50 × 102 = 357 = 360 (2 s.f)
260 + 360 = 620
Answer:
second answer
Explanation:
The melting point would occur more quickly but stay the same.
So it is answer 2
if your n is 6 then the 2nd number is 5.
the order is this
n, 0 --> n-1, -L <-> L, and then either -1/2 or +1/2. i know its really confusing i hate chem myself, but its kinda ironic cuz this was the only thing i understood haha
