1. Explain how a saturated solution represents an equillibrium between the solution and any undissolved solute present.

...Any substance that is not a mixture is A pure mixture A colloid A suspension A pure substance

Balance the following chemical equation. H₂O +CaCO3 →H₂O + Ca + CO₂ Assume the coefficient of CO₂ is 1. What is the balanced equation? |H₂O +CaCO3 → H₂O + Ca + CO₂

1. (answer the questions in the tan boxes in the tables below each question) A student conducted an investigation to determine the effect of water temperature on the amount of sugar that dissolves in a beaker of water. Identify components for trial 1 of this investigation. Beaker Number 1 2 3 4 Amount of Water (mL) 100 100 100 100 Amount of Water (mL) Trial 1 Temperature of Temperature of Amount of Sugar Sugar (°C) Water (°C) Dissolved (g) 20 20 20 20 Temperature of Sugar 5 10 15 20 185 189 194 204 Temperature of Water Terms Variable Constant Amount of Sugar Dissolved

These questions are not graded! It is strictly for practice. Do questions 1-5.

وچی NaOH, H2O, haat NaOH, H2O, heat پہلے 0 Na Na HO OH

Why are ducks waterproof? It’s because they produce copious amounts of oils from their uropygial glands and spread it across their feathers. In this exercise, we’ll be investigating the molecular structure of one of these preen oils to determine how it keeps ducks dry. Q.5 - Preen oil is actually a complicated mixture of many different organic compounds, such as the structure seen previously.. Ornithologists have determined that birds often use preen oil compounds for scent recognition. Below, several different chemicals isolated from preen oil are shown, along with their vapor pressures at room temperature. p-cymene has the highest vapor pressure, meaning it is the most easily evaporated compound of the three listed. Explain why p-cymene has a higher vapor pressure at room temperature compared to the other compounds. Make sure to explain what holds the p-cymene in the sample. (Image attached)

Give correct detailed Solution with explanation needed..don't give Handwritten answer

Chemistry 5’G-G-C-T-A-T-T-G-A-G•G-A-T-C-C-T-G-G-A-T-G-C-C3’3’C-C-G-A-T-A-A-C-T-C-C-T-A-G•G-A-C-C-T-A-C-G-G5’   a. Give the two DNA fragments generated by the enzyme, and then calculate the binding free energy for re-association of the two, resulting fragments.b. Calculate the equilibrium constant for the formation of the uncleaved complex at 25°C in 1M NaCl.c. Calculate the equilibrium constant for association of the ‘sticky ended DNA’ fragments at 25°C in 1M NaCl.d. Determine the concentration of ds DNA (in part c) after enzyme digestion, if the starting dsDNA concentration was 10-8M.

4. If sugar is melted to the liquid state and then allowed to condense back into a solid has anything happened to change the sugar molecules? Explain your answer. (2-3 sentences)