31,000 milligrams is equal to 31 grams
Answer:
A. 0.1828 g/cm³
Explanation:
Hi there,
Density's well known formula is Greek letter rho: ρ 
where m is the mass, and V is volume. Since the volume in question is a cube, the volume of a cube is simply the edge length 
³
³ = 68.921 cm³
ρ 
= 0.1828 g/cm³
Thanks,
Calcium, which is in Period 2 and has 2 valence electrons, has an ion of Ca 2+
This is because it can give up the two electrons to get a full outer shell.
Nitrogen, on the other hand, has 5 valence electrons. To get a full outer shell, it can either gain 3 electrons or lose 5. Since it is easier to gain 3, Nitrogen usually gains 3 electrons to form a N3- ion.
Even though it is rare, it is possible for Nitrogen to form a positive ion, which is N5+
Hope I helped!! xx
It’s C because only there is one element on each side.
We can eliminate option A because that’s synthesis and we can eliminate B because it’s double replacement. you must remember that oxidation reduction reactions are NEVER associated with double replacement. and lastly we can eliminate D because it is also double replacement. hope this helps!
A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons. Hope that helps!
