For the first controlled experiment, decide how much water you want to use. Add some powder. Note the temperature change. Keeping the water amount constant, add a different amount of the same powder and note the final temperature. Keep adjusting only the powder amount until you have discovered how it affects the solution temperature. What relationship did you discover between the amount of powder used and the change in temperature?
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Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?
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There are approximately 15 milliliters (ml) in 1 tablespoon (tbsp). what expression can be used to find the approximate number of milliliters in 3 tbsp?
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For the first controlled experiment, decide how much water you want to use. Add some powder. Note th...
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