Chemistry, 20.08.2021 22:00 MajentaSnow2613
Please I need help.. Some trees have purple leaves. The purple colour is a mixture of coloured pigments.
Plan an experiment to extract and separate the coloured pigments present in the purple leaves.
You are provided with some purple leaves, sand, ethanol and common laboratory apparatus
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Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.
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Sulfuric acid (a component of acid rain) reacts with limestone (calcium carbonate) to produce calcium sulfate and carbon dioxide. this damages buildings and statues made of limestone. which solution of sulfuric acid will damage these structures more quickly? a. 0.001% b. 0.005% c. 0.010% d. 0.015%
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Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases
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Please I need help.. Some trees have purple leaves. The purple colour is a mixture of coloured pigme...
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