Zn + 2 hcl zncl2 + h2 you are asked the following question: in the chemical reaction above, if you start with 100 grams of zinc, how many moles of hydrogen will be produced? what is the logical first step to solving this problem?

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

What type of electromagnetic waves does the human eye see as the colors red blue or green a visible light waves b radio waves c infrared waves d microwaves

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.