You put to chemicals in a bottle and screw on the lid. when you shake in the bottle starts to warm up what kind of reaction is this?

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

What diagram shows the ionic compound of magnesium oxide

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.