Question

ANSWER MY QUESTION SSS

3) Observe the figure and write measure of angle of incidence.
air
40°N
glass
a) 0°
c) 50°
b) 40°
d) 140°
4) At the time of short circuit, the current in the circuit.
a) increases b) decreases
c) remains the same d) increases in steps
5) The reaction NaOH + H2Oo + NaOH(aq) is a/an ............ reaction.
a) reduction b) exothermic
c) endothermic d) oxidation​

Answer 1

Answer:

3) 50°

4) Increases

5) Exothermic reaction..

Answer 2

Answer:

5) exothermic reaction