Answer:
D
Explanation:
They don't have define shape nor structure...so a random group of stars and no shape can form a irregular galaxy
Answer:
21 neutrons
Explanation:
There are 21 neutrons in Pottasium-40
<span>Helium is the noble gas with only 2 valence electrons
I Hope This helps
</span>
It turns liquid to gas. Hoped this helped!!
Answer:
1.8×10^-2mm or 0.018mm
Explanation:
Density = mass/Volume
But volume= area×thickness
Area= 50ft2= 46451.52cm2
Mass=8oz= 226.7962g
Density= 2.70g/cm3
Thickness= mass/density ×area
= 226.7962/46451.52×2.70= 1.8×10-3cm= 1.8×10^-2mm
