A dozen spheres weigh 1.34 g. A “gross” is a dozen dozen, or 144. What would 144 spheres weigh?

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

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If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied