Answer:That all noble gases will have 8 valence electrons which makes a atom stable
Explanation:
Four Consecutive terms are written as a-3, a-1, a+1,a+3. So
Sum of Terms : 4a=28
a=7
So the terms are 4,6,8,10
Verification : 4^2+6^2+8^2+10^2
= 216
Answer:
The chemistry student will need to weigh 74.0g of chloroform.
Explanation:
Density relates mass and volume and 1 cm⁻³ = 1 mL:
1.48 g of chloroform ____ 1 cm⁻³ chloroform
m ____ 50.0 cm ⁻³ chloroform
m = 74.0 g of chloroform.
Therefore, the chemistry student will need to weigh 74.0g of chloroform.
Molarity is moles divided by liters so do .732 divided by .975 liters.