The density of air at ordinary atmospheric pressure and 25°c is 1.19 g/l. what is the mass, in kilograms, of the air in a room that measures 12.5ft x 15.5ft x 8.0ft?

What type of context clue you understand the meaning of  quandary?

Who examines and coordinates the cleanup of polluted sites?

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.