Answer:
There are 18572.9 arcminutes in 86% of a circle.
Explanation:
The degrees in 86% of a circle is:

Now, we need to find the number of arcminutes in 309.6°:

Therefore, there are 18572.9 arcminutes in 86% of a circle.
I hope it helps you!
Answer:
Properties of Alkaline Earth Metals
shiny.
silvery-white.
somewhat reactive metals at standard temperature and pressure.
readily lose their two outermost electrons to form cations with a 2+ charge.
low densities.
low melting points.
low boiling points.
Explanation:
<span>Mr = 13 g / mol
mass = 5 g
Mol = 5/13 mol :)</span>
I think that different liquids have different freezing points because every liquid consists of different atoms and different things that make up the atom causing them to have different freezing points.