Aluminum weighing 5.4 g reacts with sulfuric acid (H, S,) weighing 49.0 g. Calculate the mass of aluminum sulfate Al,(SO,), and the volume of hydrogen (NTP)?

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver

Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.

The semi-conductors on the periodic table are classified as