A group of students conducted an experiment to determine the effect of heat on the germination(sprouting) of sunflower seeds. Which of the variables listed below is the least important to control in this experiment? a
the temperature of which the seeds are heated
b
the length of time the seeds are heated
c
the type of soil used
d
the amount of moisture in the soil

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign