6 H2(g) + P4(5) → 4 PH:(9) 17 Solid phosphorus reacts with hydrogen gas to form phosphine gas (PH) as shown above What is
the theoretical yield of PH2 that can be formed when 400 g Ha reacts with 6.20 g P.?
A. 89.8 g PHS
B. 44 9 g PH
C 27 2 g PHA
D. 681 g PHI

Which of these is the result of scientific research and not engineering? a. a new shoe design that features air cushioning for more comfort and protection b. the creation of glass with uv protection. c. a conclusion about diet commonalities among diabetics. d. the development of a smaller, more compact missile.

When will le chatelier's principle come into effect? at the beginning of a reaction, when there are only reactants when a reaction has reached chemical equilibrium when a catalyst is added to a reaction mixture when a reaction is occurring but not yet at equilibrium

At room temperature what happens to the average kinetic energy of the molecules of a solid, liquid, and a gas