Which formula represents an acid?

A. CH4

B. HCl

C. NH3

D. PH3

What characteristics of water allow it to have high surface tension?

A gas at a fixed volume had a temperature change from 87.00 K to 65.25 K. At 65.25 K, the pressure was recorded as 18 Pa. What was the initial pressure?

Which of the following changes has a decrease in entropy? N2O4 (g) - >2NO2 (g) C6H6 (l) - > C6H6 (g) 2LiClO3 (s) 3O2 (g) + 2LiCl 3Fe (s) + 2O2 (g) -. Fe3O4 (g)

Que es fotosintesis y para que sirbe

An example of something that stores chemical energy is a. lightning. b. a microwave. c. a match. d. light.

Suppose there is 0.63 g of HNO3 per 100 mL of a particular solution. What is the concentration of the HNO3 solution in moles per liter?

Of the three thermodynamic quantities, δg, δh, δs, which is most useful for determining spontaneity of a reaction?

Does the density of an object depend on its size? Explain?.

What are two fungal skin infections that humans can contract? pneumonia and ergot disease ergot disease and athlete's foot athlete's foot and ringworm ringworm and pneumonia

A critical biotic factor in Yellowstone National Park is A) geographic isolation B) high elevation C) high temperature in the summer D) population of wolves E) proximity to water