If it takes one second to count two rice grains, calculate the time in years required to count a mole of rice grainrg.

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

Explain that newton first law, second law and third law of motion?

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