given the following reaction: CuO (s) + H2 (g) to Cu (s) + H2O (g). If 250 L of hydrogen gas are used to reduce copper (II) oxide at STP, what mass of copper is to be expected?

Is lithium iodine an element, compound, or a homogeneous mixture, or a heterogeneous mixture?

What state of matter is air?

Which describes the oxidizing agent in a chemical reaction

A magnet is A) any material that repels metals. B) any material that attracts iron C) and material that attracts helium

The concentration of a biomolecule inside a rod‑shaped prokaryotic cell is 0.0035 M. Calculate the number of molecules inside the cell, which is 4.2 μm long and 1.3 μm in diameter

What do Lewis dot structures show?

300 grams of a compound which contains only carbon, hydrogen and oxygen is analyzed and found to contain the exact same percentage of carbon as it has oxygen. The percentage of hydrogen is known to be 5.98823%.

What element has the electron arrangement 2,8,4?

If you get pregnant in Dec how long will it take for u to get to second trimester

Name the following compound HClO