The naswer i have is <span>A </span>spacecraft should<span> be </span>airtight<span> because space is a vacuum, and anon-</span>airtight spacecraft<span> would vent atmosphere</span>
Density can be determined as:
d = m /V
whereas, m is mass of compound
v is volume
d = 700 /840 = 0.83 g /mL
Thus density is 0.83 g /mL
Well both A and B occur but magnesium is not a strong acid just like vinger so i would go with option A it become polished and shiny
hope this helps!!
The answer is AlCl3, it’s 133.34g/mol
The numbers inside the boxes represent the atomic number. the circles and dots represent the shells and electrons.