For a science project, janet performs four experiments that are supposed to show a chemical reaction. she displays her results in a table. in the column titled “chemical reaction? ,” which experiment’s data should be changed to “no”? experiment 1 experiment 2 experiment 3 experiment 4

Experiment 1, because the boiling of water is a physical reaction not a chemical reaction

b would be the answer

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min