Earth scientists have identified four distinct layers of the atmosphere. Which of the following defines the layers of the atmosphere? Their density

Their altitude

C. Their temperature

Their air pressure

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

Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule

When a beta particle is emitted, the mass number of the nucleus a. decreases by one b. increases by one c. remains the same d. decreases by two