Ben will be conducting an experiment in which he reacts metals with different concentrations of acid in test tubes. what should ben wear to best protect himself during the experiment?
a)heat-proof gloves, a lab coat, and close-toed shoes
b)a lab coat, chemical gloves, and close-toed shoes
c)goggles, a lab coat, and heat-proof gloves
d)goggles, a lab coat, chemical gloves, and close-toed shoes

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.