Consider the following reaction: PH3 (g) P4(s)+6 H2(g) 4 What mass of P4 will completely react with 2.60 L of hydrogen gas, at 0 degrees * C and 1.70 atm pressure?

What does a numerical subscript following an element in a chemical formula mean?

Use the de broglie's wave equation to find the wavelength of an electron moving at 7.3 × 106 m/s. show your work. note: h = plank's constant (6.62607 x 10-34 j s)

In a chemical reaction, the final amount of the products is determined by the a. universal gas law b. law of definite proportions c. air pressure d. temperature e. none of the above me