A bob of mass of 0.18 kilograms is released from a height of 45 meters above the ground level. What is the balue of the kinetic energy gained by the bob at the ground level?

How many moles of oxygen (O2) are present in 33.6 L of the gas at 1 atm and 0°C? O 1.5 O2 224 O 32

How many milliliters of 0.260 m na2s are needed to react with 35.00 ml of 0.315 m agno3?

omplete the equation showing the reaction of octadecyl p-toluenesulfonate (CH3 (CH2) 16CH2OTs) with sodium butanethiolate (NaSCH2CH2CH2CH3). Click the "draw structure" button to launch the drawing utility. Do not use brackets in your answer.

The pharmacy stocks a 90% w/v solution of drug 'w'. you need to prepare 200ml of a 5mg/ml solution for a patient. what volume of the stock solution will you need?

Which properties are most useful for identifying minerals? Why?

1 75 ml of lemon juice are added to 50 ml of water. What is the percent by vo of the solute?

How many moles of tungsten atoms are in 4.8 x 1025 atoms of tungsten?

At what speeds do you criuse down the track of a roller coaster

A sample of hydrogen gas is mixed with water vapor. The mixture has a total pressure of 755 torr and the water vapor has a partial pressure of 24 torr. What amount (in moles) of hydrogen gas is contained in 1.55 L of this mixture at 298 K?

Both equation I and II are balanced, but equation II is the correct way to write the balanced equation. Why do you think this is? (Hint: Think fractions.) I) 2 SnO2 + 4 H2 → 2 Sn + 4 H2O II) SnO2 + 2 H2 → Sn + 2 H2O