I initially had a really hard time on our conversion factor unit, so I really need help on how to solve this problem: The diameter of the tungsten wire in a light bulb filament is very small, less than two-thousandths of an inch, or about 1/20 mm. The mass of the filament is also very small, 0.0176 grams. How many tungsten atoms are in a typical light bulb filament?

Initially, the balloon had 3.0 liters of gas at a pressure of 400 kpa and was at a temperature of 294 k. if the balloon is cooled to 277 k and its volume decreased to 1 l, what will the new pressure in the balloon be?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.

What human activity increases beach erosion?