Why is there a danger of explosion in places like coal mines where there are large quantities of powdered, combustible materials?

How many stars are in Pegasus and Cassiopeia together?

The following chart presents twelve sets of measurements of the pressure vs temperature for Abilene, TX, taken over a period of four days. Air Pressure & Temperature for Abilene, TX Temperature (°F) Pressure (mb) 50 1009.9 53 1009.0 55 1008.

A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains of water at. During the reaction of heat flows out of the bath and into the flask. Calculate the new temperature of the water bath.

H2O is a single atom of wat true or false?

A 4.75 Liter container is at a pressure of 120 kPa. What will its pressure be at a volume of 1.85L?

What are the chemical components of a dna molecule?

Which type of reaction is described by the following equation? Na2O (s) + 2CO2 (g) + H2O (g) produces 2NaHCO3 (s)

According to Hund's Rule, if you were filling the three orbitals at the 2p energy level, you would first put an electron in the 2px orbital, then in the 2py orbital, and then in the 2pz orbital;

It is snowing where Jenna lives. It's been snowing all day, but now the snow has changed to sleet and then to freezing rain. What is happening to cause these changes?

Liquid sample a has a higher vapor pressure than liquid sample b (both in closed containers). what can be said about sample a compared with sample b?