1 wavelength, 2 crest, 3 trough, 4 wave height <3
Answer:
D 1 and 3 only I am not sure
Explanation:
D- Physical
Explanation:
A physical property is anything that has characteristics associated with a change in it's chemical composition
Fe3N2, also known as Iron (II) nitride, is an ionic compound.
Ionic compounds are compounds that consists of metals and non-metals bonded with ionic bonds. The metal ion gives up electron(s) to the non-metals.
Since iron is a metal and nitrogen is an non-metal, the bond they would form would be an ionic bond. Iron gives up 2 electrons to form iron(II) ion, while nitrogen gains 3 electrons to form nitride ion. Since one iron cannot let a nitrogen gain 3 electrons, so in the compound, there would be 3 iron (ii) ions that has given up 6 electrons in total while 2 nitride ions have gained 6 electrons in total.
I believe the atomic level increases hope this helps.
