A student didn’t notice that her pipet tip was broken. She used the pipet properly but it consistently delivered 4.70 mL of vinegar instead of the desired 5.00 m inL. How

would the percent by mass results obtained have been affected? Explain your answer.​

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.