the active ingredient in alka seltzer is sodium bicarbonate (nahco3.) using reaction equation(s), show how alka seltzer is able to exhibit buffering against acid and bases.

The first element on the periodic table of elements is carbon. a. true b. false

Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.

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.