Achemical reaction was used to separate a sample in to it's components what conclusion about the sample can be formed by sony techniques used it was a pure substance it was a compound it was a heterogeneous mixture it was a homogeneous mixture

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.

Avariable that is not being directly tested during an experiment should be

I’m an electrically neutral atomic any element, there are equal numbers of