How many atoms of silver are in a ring with a mass of 4.5 grams?

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?