The substance would be referred to as a compound substance.
No because you are supposed to do this

T for time and V for velocity or acceleration so what you do is take the two numbers
D= 3/12 it goes 12 meters every 3 seconds so you devide 12/3

So for every second the ball roles 4 meters!
Hope this helps! :)
Answer:
Lithium will lose about 2 electrons
Making it a cation
125 Each half life it divides by 2 the amount
1000/2=500
500/2=250
250/2=125
Answer:
E. a small yellow ball that represents the Sun
Explanation:
key word on the question, 'physical'