Based on the positions in the periodic table, which two elements would mostly readily combine to make a stable compound

1. list three scientific reasons cockroaches may fly.

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

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.