Of all the reactions you performed, how many resulted in a precipitate and how many did not? make a general statement about the interaction of aqueous ionic compounds, using the term double-displacement reaction.

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What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid

Will ! a cell containing a 3% sucrose solution is placed into a beaker containing a 7% sucrose solution. assume the cell’s membrane is permeable to water, but not permeable to the sucrose. where will the water diffuse? explain.

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.