What does the part of the equation to the left of the arrow represent in a chemical formula

How will the emission of an alpha particle affect the atomic number of an atom

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

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.