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Physics, 21.06.2019 16:00
In a laboratory, nakisha mixes sodium hydroxide solution with an indicator called phenolphthalein. when combined, they create a pink solution. nakisha wonders if mixing other solutions with phenolphthalein will also create this pink color. how could she use the scientific inquiry process to explore it further?
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Physics, 22.06.2019 08:00
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
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Physics, 22.06.2019 12:00
Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt
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Physics, 22.06.2019 15:30
How many neutrons does element x if it’s atomic number is 28 and its mass number is 87
Answers: 1
Pangaea is the name given for "all land" of earth. this name is used by geologists to describe their...
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