A piece of metal with a mass of 159 g is placed in a 50 mL graduated cylinder. The water level rises from 20. mL to 41 mL. What is the density of the metal?

NaOH is a strong base. Which two ions do you expect to find in a solution of NaOH? A. Na and OH B. Na + and OH- C. NaO - and H+ D. NaH + and O-

Which statement descibes the type of change and the chemical properties of the product and reactants

How many valence electrons does iron have?

What phrase describes the safety of water for use by humans, animals, and plants? A. Water Table B. Water Quality C. Watershed

What does the "ii" in the name iron (ii) indicate about the cation?

importance of pH value in daily life

How do metallic bonds differ from covalent and ionic bonds

Will ag2so4 precipitate when 100 ml of 5.0*10-2 m agno3 is mixed with 10 ml of 5.0*10-2mna2so4 solution?

How many grams of H₂ are produced with the reaction of 36 grams of water? 2 Na + 2 H20 - > 2 NaOH + h2

Which statement is the best description of a chemical bond? A. A chemical bond connects 2 different molecules. B. A chemical bond holds atoms together. c. A chemical bond turns molecules into atoms. D. A chemical bond identifies atoms in a molecule.