This is false, a compound does not have to contain both cations and anions if ions are present.
Answer:
A..............................
2 is right am 70 percent sure
Answer:
1.When the ball starts it has potential energy, therefore when it falls it will have kinetic energy.
2. When it falls it will have potential energy, then cut the scissors, therefor when it gets to the wood it will have kinetic energy.
3.when it slings shot it will fall into kinetic energy, then stop and stay at potential energy.
Explanation:
Is this better?