Answer:
d) A - 70% B - 30%
Explanation:
If x is the abundance of A, and 1−x is the abundance of B, then:
x (32.0) + (1−x) (33.0) = 32.3
32x + 33 − 33x = 32.3
33 − x = 32.3
x = 0.7
The abundance of A is 70%, and the abundance of B is 30%.
C ! ..........................
Because you’re body is using energy to keep you alive. Your breathing takes energy, so does your heart beat.
B. Molecules in both the metal and the surrounding air will start moving at higher speeds.
