4NH3 + 702 4NO2 + 6H20 The coefficient for oxygen gas. O2, is:
A. 7
B. 4
С. 3
D. 1

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean

Find the mass in grams of 1.37x1020 particles of h3po4

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?