Water is water that contains relatively large amounts of dissolved calcium and magnesium

Choose all that apply. when creating a graph, you should: determine the x- and y- variables label the scale on the x- and y- axes plot the data points draw a line of best fit to represent the data trend

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.