Is a compound considered a pure substance? Why or
why not?

How many grams of magnesium metal will react completely with 8.3 liters of 5.5m hcl? show all work

What happens to the temperature of a substance when the average kinetic energy of its particles increases?

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.