During a single replacement, the Zn and H will switch places. That means the product formed will be ZnCl and H2.
Answer:
Resistance, 
Explanation:
Given that,
Voltage of the battery, V = 9 volts
Current produced in the circuit, I = 17 A
We need to find the resistance when shorted by a wire of negligible resistance. It is a case of Ohm's law. The voltage is given by :




So, the resistance in the circuit is 0.529 ohms. Hence, this is the required solution.
Answer:

Explanation:
M = Mass of each star
T = Time period = 15.5 days
v = Orbital velocity = 230 km/s
G = Gravitational constant = 
Radius of orbit is given by

We have the relation

The mass of each star is 
Answer:
Your question is incomplete
The answer is cancer that is the reason there is no complete cue in people