Answer:
C. equal to, elements, products
Explanation:
I took a quiz and it said this was right
P * V = n R T
<span>1 * 2.50 = n * 0.082 * 273 = 2. 50 / ( 0.082 * 273 ) = 0.11 mol </span>
<span>mass = mole number * molecular mass </span>
<span>mass = 0.11 * ( 16 * 2 ) = 3.52 g </span>
We assume that the given gas, NO2, is an ideal gas such that we will be able to use the equation,
n/V = P/RT
where n is the number of moles, V is volume, P is pressure, R is gas constant, and T is temperature in kelvin. Substituting the known values,
n/V = (1 atm) / (37 + 273)(0.0821 L.atm/mol.K)
n/V = 0.039 mol/L
Converting this to density by multiplying the value with the molar mass,
density = (0.039 mol/L) x (46 g/mol) = 1.8 g/L
The number of electrons in a completely filled second shell of an atom is 8.
Hope this helped.
Answer:
1.diamond, graphite, and fullerenes.
2.a material produced by the incomplete combustion of heavy petroleum/ink for printing newspapers, as ink-jet toner, and coloring leather in shoes
3.Diamond is extremely hard while graphite is pretty soft, diamond has a greater density than graphite, and diamond is semi transparent while graphite is dark and foggy
4.Graphite can conduct electricity because of the free electrons in its structure. However, in diamond, all 4 outer electrons on each carbon atom are used in covalent bonding, so there are no delocalised(free) electrons.
Explanation: