1.rosita went to baguio in talker 5 hours to travel a distance of a km what was the speed 2.how long was your trip when it covered a distance of 100 km at a speed of 50 km/h
3.tarlac is 180 km from manila how many meters are you going to travel if you want to visit your relatives in tarlac
4.gilbert runs at a speed of 9 km/h he runs for 6 hours how far does he travel
5.the rabbit runs for the distance of 12 meters in 6 seconds what is its speed ​

ch3 [ch2]14cooh

explanation:

it means there are 3 atoms of oxygen

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.