Sergio is planning an experiment about phase changes. as a part of the procedure, he must measure and use exactly 25 milliliters of water. which of the following tools should sergio choose to most accurately measure the water? a. meter stick b. 400-ml beaker c. 50-ml graduated cylinder d. test tube

Ihat will happen if i added baking soda to vinegar

Margaret wants to make an orange flavored drink by stirring powdered drink mix into a glass of water. she doesn't like drinks that have small clumps of powdered solid in them, so she wants the drink to be a perfect solution. what factors should margaret not consider when deciding how much powder to add to her glass of water?

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?