Answer:
B.
Explanation:
The air molecules of warm air has higher energy. It causes them to move away from each other
The answer is the liquid phase
Salt and sugar would dissolve in the water, wood, iron, and glass wouldn't dissolve
Answer:
A perfect mold of a dinosaur bone
Answer : The mass of 7.0 m chain is, 15.12 kg
Explanation :
As we are given that,
The weight of the chain per unit length = 2.16 kg/m
Now we have to determine the mass of chain for 7.0 m length.
As, the mass of 1 m length of chain = 2.16 kg
So, the mass of 7.0 m length of chain =
= 15.12 kg
Therefore, the mass of 7.0 m chain is, 15.12 kg