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The drawing represents the movement of particles in a substance. what changes of state can this substance undergo
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A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?
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20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?
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In an exothermic reaction at equilibrium, what is the effect of lowering the temperature? a. the reaction makes more products. b. the reaction makes more reactants. c. the reaction is unchanged.
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Which synthetic polymer is made into fibers that do not wear out easily? a) cellulose b) polyethyle...
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