Hi, i have to write a lab report about an experiment i did where i had to find a relation between the solubility of a salt (nh4cl) and the solvent (a mix of water and methanol). i found that the higher the methanol concentration, the lower the solubility. the teacher explained why it happens in class (something about polarity) but i didn't quite understand. can you me ?

When you mate two plants together the terms is called? answer it fast as possible plz! i have a test tomorrow!

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure