In a solid state, the molecules have the least amount of energy. They just stick close together and vibrate in place. As the molecules gain more energy, they are able to move around more freely. In the liquid state, the molecules have enough energy to sort of tumble over each other.
Explanation:
element with atomic numbers 7 and 83 have 5 and 5 valence electrons
There are 17.97 moles of calcium chloride would react with 5. 99 moles of aluminum oxide .
The balanced chemical equation between reaction between calcium chloride and aluminum oxide is given as,
→ ![3CaO_{2} (s)+2Al Cl_{3} (aq)](https://tex.z-dn.net/?f=3CaO_%7B2%7D%20%28s%29%2B2Al%20Cl_%7B3%7D%20%28aq%29)
The molar ratio of above reaction is 3:1
It means 3 moles of calcium chloride is require to react one mole of aluminum oxide.
The number of moles of calcium chloride requires to react with 5. 99 moles of aluminum oxide = 3 × 5. 99 = 17.97 moles
The equation in which number of atoms of elements in reactant side is equal to the number of atoms of elements in product side is called balanced chemical equation .
learn more about calcium chloride
brainly.com/question/15296925
#SPJ4
Answer:
Work done, W = 100 J
Explanation:
We have, Billy the friendly Robot uses 50 N of force to lift a box 2 meters in the air.
It is required to find the work done by Billy.
Work done by an object is given in terms of force and displacement. The formula used to find the work done is given by :
![W=Fd\\\\W=50\ N\times 2\ m\\\\W=100\ J](https://tex.z-dn.net/?f=W%3DFd%5C%5C%5C%5CW%3D50%5C%20N%5Ctimes%202%5C%20m%5C%5C%5C%5CW%3D100%5C%20J)
So, the work performed by Billy is 100 J.