Answer:
1)Ni=1s2, 2s2, 2p6, 3s2, 3p6, 4s0, 3d10 called full-filled
2)Cr=1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d5 called half-filled
Answer:
Calories of candy = 5.1 kcal /g
Explanation:
Given data:
Mass of candy = 4.70 g
Change in temperature = 2.46 °C
Specific heat capacity of calorimeter = 40.50 Kj/°C
Calories present per gram = ?
Solution:
Formula
Cal of candy = specific heat capacity × change in temperature / mass
C = c . ΔT/m
C = 40.50 Kj/°C × 2.46 °C / 4.70 g
C = 99.63 kj /4.70 g
C = 21.2 kj/ g
C = 21.2 kj/ g × 0.239 kcal/kj
C = 5.1 kcal /g
A change that alters the identity of a substance resulting in a new substance or substances with different properties. A change to a substance that occurs without forming a new substance, such as a change in size or state of matter.
Answer:
0.47dm³
Explanation
Given parameters :
Molarity of NaCl = 6.67M
Number of moles = 3.12mol
Volume of NaCl =?
Volume of NaCl = number of moles/Molarity
Volume of NaCl = 3.12mol/6.67M
Volume of NaCl = 0.47dm³
