Answer:
moles H = 2 x 0.0649=0.130
ions = 0.130 x 6.02 x 10^23=7.81 x 10^22
Explanation:
Copper 2
Just like you how you would say Cu(I) as copper one, you would say Cu(II) as copper two. Nothing fancy.
Answer:
B watt
We use watts to measure power.
Answer:
c = 0.38 J/(g-°C)
Explanation:
Given that,
Mass of copper, m = 5 g
Initial temperature,
Final temperature,
When copper cools, it looses 23.6 J of heat. We need to find the specific heat of copper. The heat lost is given by :
c is specific heat
Hence, the correct option is d.
Petrol is a conductor of electricity, because it conducts rather than insulates.