# Which coefficient placed before HCl will balance the following equation? Zn+HCI ZnCl2 + H2

###### Question:

Which coefficient placed before HCl will balance the following
equation? Zn+HCI ZnCl2 + H2

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### Water with pressure of 190 kPa flows down hill through a pipe with a 3.90 cm diameter hose at a speed of 1.2 m/s. It then exits through a smaller pipe m of diameter 1.50 cm which is 5.00 m below the upper pipe. a. What is the speed of the water exiting at the lower pipe opening? b. What is the water pressure at the exit of the lower pipe. ?

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