Answer:
The first ionization energy for K is less than Ca because Ca has a larger effective nuclear charge.
I remember this from a week ago. The answer was topex/poseidon
Answer:
I choose D option because may be it's correct
We are given that 1 teaspoon is equivalent to 5 mL,
therefore 0.75 teaspoon is:
0.75 teaspoon * (5 mL / 1 teaspoon) = 3.75 mL
So the mass is density times volume:
mass = (12.5 mg/5 ml) * 3.75 mL
<span>mass = 9.375 mg</span>
