What is the most toxic substance that accumulates in an aquarium?

A eudiometer contains a 65.0 ml sample of a gas collected bythe displacement of water. The water levels inside andoutside the eudiometer are the same. The atomspheric pressureis 92.5 kPa and the temperature is 23 degrees celsius.

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After recrystallizing an impure sample with isopropanol, you isolate your product by filtration. What solvent do you use to wash your crystals?

Sarah is making a strawberry banana smoothie. She combines one banana, five strawberries, and a cup and a half of milk in a blender to make her smoothie. In the blender, the fruit is cut up into tiny pieces and then turned into a liquid.

It is possible to have more than the maximum amount of solute dissolved in a solvent. A. True B. False

What is the volume of 20.0g of benzene (0.88g)

Which compounds have the empirical formula CH2O? A. C2H4O2 B. C3H6O3 C. CH2O2 D. C5H10O5 E. C6H12O6

An element is a pure substance. It can not easily be broken down into parts by physical means. A) True B) False

Sodium phosphate and calcium chloride react to form sodium chloride and calcium phosphate. If you have 379.4 grams of calcium chloride and an excess of sodium phosphate, how much calcium phosphate can you make?

What is the maximum number of electrons in the second electron shell, closest to the nucleus?