What would be total mass of sodium hydroxide and hydrogen
If 1.3g of sodium reacted with 1.8g of water what would be the total mass of sodium hydroxide and hydrogen produced?
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The punter on a football team tries to kick a football so that it stays in the air for a long "hang time". If the ball is kicked with an initial velocity of 25.0 m/s at an angle of 60.0 degrees above the ground, what is the "hang time"?
Calculate the molarity of each of the following solutions: (a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution, (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution, (c) 9.00 g of sodium chloride (NaCl) in 86.4 mL of solution.
Calculate the resulting pH if 455 mL of 0.200 M HCl is mixed with 315 mL of 0.0850 M Ca(OH)2.
The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.80, calculates the speed of the sports car at impact.
A car travels due east with a speed of 45.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 60.0 with the vertical. Find the velocity of t
The oxide of 'N' element contains 33.33% of the element .The same element forms a chloride whose Vapour density is 59.25. Calculate equivalent weight , atomic weight and valency of the element ?
Calculate the pH of the solute in an aque- ous solution of 0.611 M NH3(aq) if the Kb is 1.8 × 10-5. What is the percentage protonation of the solute? Answer in units of % & ;
The block, of mass 1.14 kg, is subject to no horizontal external forces during the collision with the bullet. After the collision, the block is observed to move at a speed of 4.50 m/s. How much kinetic energy is lost?
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