Which has more particles, a mole of hydrogen (H) atoms or a mole of

oxygen (O) atoms?

What kind of bond is the result of the transfer of an electron?

A chemist must prepare 550.0 mL of nitric acid solution with a pH of 2.00 at 25 °C. He will do this in three steps: Fill a 550.0 mL volumetric flask about halfway with distilled water. Measure out a small volume of concentrated (9.

2. When all parts of a circuit are composed of conducting materials, the circuit is said A shorted 3. closed C. parallel open -

Analyze: The metallic character of an element is determined by how readily it loses electrons. Elements that lose electrons most easily have the greatest metallic character A. Which group has the greatest metallic character? B.

How many valence electrons in Al (OH) 4-

What is the enthaply of the reaction?

Which color has a higher frequency, A. red light B. blue light

what is the volume of 0.98 mol oxygen (O2) gas at 275 K and a pressure of 2.0 atm? (the universal gas constant is 0.0821 L*atm/mol*K)

Which element is classified as an alkali metal? Rb Sr Zr Cl

Which statements about a neutral atom are correct? Check all that apply. The positively charged particles in the nucleus are positrons. The radius of the electron cloud is twice as large as the radius of the nucleus.