Answer is: 25,06 kJ of energy must be added to a 75 g block of ice.
ΔHfusion(H₂O) = 6,01 kJ/mol.
T(H₂O) = 0°C.
m(H₂O) = 75 g.
n(H₂O) = m(H₂O) ÷ M(H₂O).
n(H₂O) = 75 g ÷ 18 g/mol.
n(H₂O) = 4,17 mol.
Q = ΔHfusion(H₂O) · n(H₂O)
Q = 6,01 kJ/mol · 4,17 mol
Q = 25,06 kJ.
The answer which is the best description of how electrons are transferred in an ionic bond is - A metal atom loses electrons and a nonmetal atom gains electrons. W<span>hile forming an ionic bond the metal atom loses electrons to gain a positive charge whereas the non-metal atom gains these electrons and gets a negative charge and then these charges attract and they bond together forming the ionic bond.</span>
10.034 mJ = 1.0034 cJ
0.05 cm = 0.5 mm
0.0325 kJ = 3250 cJ
0.42101 Gg = 421.01 Mg
0.12907 cm = 1.2907 mm
5600.4 Ms = 5.6004 Gs
Hope this helps!
There are 6.022 x 1023 atoms of sulfur in one mole of sulfur dioxide.
