Answer: 243.2 milometer of mercury
Explanation:
Molarity = moles of solute/volume of solution (L)
0.5 moles/0.075 L = 6.67 M
The definition of atomic structure is the positively charged nucleus and the negatively charged electrons circling around it, within an atom.
I think it’s A for the first one and C for the second one
Answer:
Galena
Explanation:
Galena is also known as lead glance. This is a natural mineral of the form lead(II) sulfide. It is one of the most important ore for lead. It is widely found and is mainly distributed in sulfide minerals.
Galena can be easily scratched by finger nails. It has black streak and have a metallic luster. Galena have cleavage. It usually occurs as cubic crystals.
