1. avogadro's number tells us the number of particles (atoms, molecules, ions) in one

2. what is the molar mass of caffeine (c₈h₁₀n₄o₂)?

3. what coefficient would go in front of alcl₃ to balance this equation?

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.

In one or two grammatically correct sentences, write a definition for the term molecule geometry