Answer:
A = 65.46 u
Explanation:
Given that,
The composition of zinc is as follows :
Zn-64 = 48.63%
Zn-66 = 27.90%
Zn-67 = 4.10%
Zn-68 = 18.75%
Zn-70 = .62%
We need to find the average atomic mass of the given element. It can be solved as follows :
So, the average atomic mass of zinc is 65.46 u.
Answer: none
Explanation: there is no picture attached
... and a power ot ten.
For example: 1,3x10^21 is in scientific notation, but 13x10^20 is not in scientific notation.
Because the reaction occurs between a metal and non metal
CL=2,8,7
C
Answer: Gravity.
Explanation:
Earth and other objects would have fly off into space in a straight line if there would have been no gravity in between objects.
The gravity can be defined as the force between two objects in space which keeps two objects together in the space.
It is also responsible for holding the objects in space, making them move on their orbits, not allowing the heavenly bodies to crash.
So, there would be no gravity the objects will fall off in a straight line and none of the objects would be at its specified position.
