Calculate the pressure, in atmospheres, required to compress a sample of helium gas from 28.4 L (at 1.00 atm) to 3.47 L at constant temperature.
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atm

Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose

Asample of tin (ii) chloride has a mass of 0.49 g. after heating, it has a mass of 0.41 g.  what is the percent by mass of water in the hydrate?   %

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.