nyakeyajanes

Calculate the power of the following electrical appliances:

a.) a mobile phone which runs on 3.6 V d.c. and uses a current of 0.018 A

b.) a mains hairdryer which draws a current of 11 A

C.) a torch bulb which uses 6V and a resistance of 30 W

What is the name of the founder of chemistry?

Based on the Lewis structure for hydrogen and helium, explain why buoyant are filled with helium instead of hydrogen gas, even though gas is cheaper and more buoyant?