Answer:
x = 0.45*28/3 = 4.2 g
Explanation:
showing work
N2 = 28 g/mole
3Mg + N2 → Mg3N2
3moles .. 28 g
0.45 moles .. x
x = 0.45*28/3 = 4.2 g (answer)
Answer:
The percentage of germanium in germatite is 6.0003%.
Explanation:
Mass of an ore of germanite = 1.00 grams
Mass of germanium chloride = 0.177 grams
Percentage of germanium in germanium chloride = 33.9%
Let the mass of germanium present in germanium chloride be x.
Percentage of an element in a compound:
x = 0.060003 grams
Percentage of germanium in an ore of germanite:
The percentage of germanium in germatite is 6.0003%.
Answer:
The classical cell theory was proposed by Theodor Schwann in 1839. There are three parts to this theory.
Explanation:
I assume you mean 'structure' :)
Metals undergo metallic bonding. In this type of bond, metal atoms loose their valence electrons (that become delocalised). This type of bonding creates a regular layered lattice with positive metal ions and a sea of delocalised electrons floating between the layers. These layers slide over each other and results in metals being both malleable and ductile.
Hope it helps!
Answer:
nonmetal
________ is an atom that gains electrons; it's valence electrons is similar to a noble gas.
Explanation:
Because non metal like chlorine gain one elctron and attain electronic configuration of noble gas Argon