A)
The additional mass is that of Oxygen
4.666 - 3.555
= 1.111 g
B)
The percentage mass of oxygen can be obtained by:
[(mass of Oxygen)/ (Total mass of product)] * 100
= (1.111 / 4.666) * 100
= 23.81%
Answer:
Pb2+ + Zn = Pb + Zn2+
Explanation:
During the reaction Zinc will be oxidized by loosing two electrons while Pb will be reduced by gaining two electrons
1. Heat transfer
2. Heat moves from an object of higher temperature to an object of lower temperature
Hope this helps!!!!!
<span>Quantum mechanic model is based on mathematics. As per this theory the exact position and momentum of electron is impossible to understand. It uses complex shapes of orbitals called electron clouds. n describes the energy of an electron. Larger the value of n larger the distance of electron from the nucleus and larger the orbital. l describles the shape of orbital. Orbitals having same of value of n and different values for l are called subshells.</span>
Answer:
Cobalt chloride= D cobalt(111) chloride