Answer: 1, magnesium & mg
2, two energy shells
Explanation:
2)The particles in a liquid are moving past one another constantly.
3)The particles in gas move freely in all directions.
4)The particles in a solid vibrate in a fixed position.
6)The particles in a gas have few attractions between them.
7)The particles in all states of matter are always moving.
A. good conductors - copper, aluminium
b. fair conductors - carbon,human body
c. insulator - paper, wood
Answer: It increases the reaction rate.
Step-by-step explanation:
The particles gain kinetic energy.
Answer:
Explanation:
Given parameters:
Mass of CuCl₂ = 2.50g
Mass of Al = 0.50g
Unknown:
Number of moles of CuCl₂ and Al = ?
Solution:
To solve this problem, we must understand that the number of moles is a fundamental property used in stoichiometry calculations.
Number of moles = 
Molar mass of CuCl₂ = 63.6 + 2(35.5) = 134.5g/mole
Molar mass of Al = 26.98g/mole
Number of moles of CuCl₂ =
= 0.019moles
Number of moles of Al =
= 0.019moles