How many joules of heat are absorbed when 70.0 grams of water is completely vaporized at its boiling point ?

Which best describes why nh4+ can form an ionic bond with cl-?

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6

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.