You want to test the effect of water temperature on the rate of sugar dissolution. Which of the following is an example of a controlled experiment to test this?A.The temperatures of five beakers of 250 mL of water are varied, and 10 g of sugar is added to each beaker.B.The temperatures of five beakers of 250 mL of water are kept constant, and 10 g of sugar is added to each beaker.C.The temperatures of five beakers of 250 mL of water are varied, and different amounts of sugar are added to each beaker.D.The temperatures of five beakers of 250 mL of water are varied, and 10 g of sugar is added to each beaker while three of the beakers are stirred.SUBMITarrow_backPREVIOUS

Deshawn wanted to find out how temperature affects the rate at which three packets of sugar dissolve in a liter of water.To find out, he performed a scientific investigation. The results from his investigation are shown below.Time (in seconds) for Sugar to Dissolve at Different TemperaturesTemperature Trial 1 Trial 2 Trial 3 Mean (average)25°C 123 s 127 s 124 s 125 s30°C 111 s 109 s 107 s 109 s35°C 98 s 101 s 97 s 99 sWhich of the following is true about the mean (average) values for the time it took the sugar to dissolve? A. The amount of time needed to dissolve the sugar stayed the same no matter what the temperature was. B. It is impossible to make any conclusions about Deshawn's experiment because he did not perform enough trials. C. The time needed for the sugar to dissolve decreased as the temperature increased. D. As the temperature increased, there was an increase in the amount of time needed to dissolve the sugar.

You experimented on the solubility of sugar in the water. You obtained the following data table by measuring the amount of sugar dissolved in different temperatures. Why does the increase in temperature lead to increased sugar dissolved?a.because the mass of water increases as temperature increases, there are more water molecules to dissolve a given amount of sugarb.because higher temperature means each sugar molecule expands in size, so the impact with water molecules will be higherc.because higher temperature means additional heat to break the bonds between sugar moleculesd.because sugar molecules clump together as temperature increases so it is easier to dissolve them at one place in the solution

You are tasked to determine the effect of temperature on the rate of dissolution of salt in water. So you dissolved 10 grams of salt by pouring it into the water, then immediately stirred the solution clockwise 3 times. You then time how long it will take for the salt to disappear in the water completely. The data table below summarizes your experiment. If you increase the amount of salt to 20 grams and do the experiment again, what do you think will be the effect of temperature on the rate of dissolution for this scenario?a.the colder the water, the faster the salt dissolvesb.the colder the water, the more grams of salt can be dissolvedc.the hotter the water, the faster the salt dissolvesd.the hotter the water, the more grams of salt can be dissolved

At what temperature would sugar dissolve most easily? A. 100°F B. 75°F C. 32°F D. 200°F

Which of the following can help you dissolve more sugar in a fixed amount of water?a.stir the solution rapidlyb.decrease amount of sugarc.put ice on the solutiond.heat the solution