Please help! Is hot tea with lemon juice a heterogeneous, homogeneous, or pure substance? Will award brainliest!

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

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.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5