A) which of the following reagents would oxidize cr to cr2 , but not fe to fe3 ?

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.