the area of a telescope lens is 6322 mm2.if it takes a technician 45s to polish 135mm2 how long it takes her to polish the entire lens?

The graph above shows how the price of cell phones varies with the demand quantity. the equilibrium price for cell phones is where both supply and demand quantities equal $100, 5,000 5,000, $100

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

How many moles of al3+ ions are in 1.25 moles of al2o3