Examine the scenario.

aarav is studying a reversible reaction at chemical equilibrium in which the forward reaction is an exothermic reaction and the reverse reaction is an endothermic reaction. after making his initial observations, aarav cools the reaction, which removes thermal energy.

based on his knowledge of le châtelier's principle, what can aarav predict will occur?

the system will try to balance the change by shifting toward the endothermic reaction, and the rate of the reverse reaction will increase.

the system will try to balance the change by shifting toward the exothermic reaction, and the rate of the reverse reaction will increase.

the system will try to balance the change by shifting toward the endothermic reaction, and the rate of the forward reaction will increase.

the system will try to balance the change by shifting toward the exothermic reaction, and the rate of the forward reaction will increase.

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

1. an experiment in your science class lists the materials needed for the lab. it is your job, as a lab partner, to measure out 25 ml of distilled water and 2.5 grams of magnesium. what lab measuring tools would you choose to measure each substance and how would you use each tool to get the correct amounts? be sure to describe the process you would follow step-by-step. (5 points) 2.which of the following is an si base unit for measuring mass? (2 points) ampere gram meter pound 3.which of the following is an si base unit for time? (2 points) decades hours minutes seconds 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer 4.which of the following tools should a scientist use to measure an object in milligrams? (2 points) graduated cylinder pan balance tape measure thermometer. 5.a pencil beside a metric ruler. the ruler is scaled from 1 centimeter to 10 centimeters, with markings for millimeters between each number. one end of the pencil is beside the 0 on the ruler, and the pencil point is beside the 5. which of the following measurements is accurate but not precise? (2 points) 5 mm 5 cm 50 mm 50 cm 6. which of the following prefixes represents the largest value? (2 points) giga hector kilo milli 7. which of the following types of graphs is best for plotting the percentages of a whole value in a data set? (2 points) bar graph circle graph histogram line graph