How do I calculate the molecular and molar masses of compounds

What is the difference between polar molecules and ionci compound

Damage to which of the following would disrupt the process of photosynthesis? A. chloroplast B. vacuole C. cell wall D. ribosome

Cuales son las leyes de newton

The surface area and average depth of the Pacific Ocean are 1.8 x 108 km^2 and 3.9 x 103 m, respectively. Calculate the volume of water in the ocean in liters.

Is it possible for a single atom of chlorine to have a mss number of 35.45u?

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