Answer: I believe the answer is A
Explanation:
Answer:
The valency of Aluminium (Al) is +3 whereas, the valency of Chlorine is -1.
Explanation:
Valency is not defined for a compound. It is only for elements. Basically, valency is the combining or replacing power of an hydrogen atom of a certain element with an other atom of element.
Answer:
∇T = 51.68°C
Explanation:
Mass = 150g
Heat Energy (Q) = 1.0*10³J
Change in temperature ∇T = ?
Q = mc∇T
Q = heat energy
M = mass
C = specific heat capacity of the gold = 0.129j/g°C
∇T = change in temperature
Q = Mc∇T
1.0*10³ = 150 * 0.129 * ∇T
1000 = 19.35∇T
Solve for ∇T
∇T = 1000 / 19.35
∇T = 51.679°C = 51.68°C
The change in temperature of gold was 51.68°C