M(Cs)=133 g/mol
M(O)=16 g/mol
M(CsxOy)=298 g/mol
w(Cs)=0.89
w(O)=0.11
CsxOy
x=M(CsxOy)w(Cs)/M(Cs)
x=298*0.89/133=2
y=M(CsxOy)w(O)/M(O)
y=298*0.11/16=2
Cs₂O₂ cesium peroxide
Answer:
9√3
Explanation:
Given that :
UV = 18
Angle V = 60°
To obtain the measure of UW = v
Using trigonometry :
Sinθ = opposite / hypotenus
Sinθ = UW / 18
θ = 60°
sin60° = UW / 18
Sin 60° = √3/2
√3 /2 = UW / 18
UW = 18 * √3/2
UW = 9 * √3
UW = 9√3
Calcium has a chemical symbol of Ca and has an atomic number of 20. This means that a neutral calcium ion will have 20 protons and 20 electrons. As part of Group 2 (alkaline earth metals), a calcium ion will be formed by ejecting 2 electrons from the neutral Ca atom. In chemical equation,
Ca --> Ca²⁺ + 2e⁻