Which of the following samples contains the greatest number of atoms?
A) 100 g of Pb B) 2.0 mole of Ar C) 0.1 mole of Fe D) 5 g of He E) 20 million O2 molecules
Which of the following samples contains the greatest number of atoms? A) 100 g of Pb...
Which of the following contains the greatest number of atoms? 0.70 mole NH3 0.25 mole SO2 0.50 mole ClO2 0.75 mole He Which of the following contains the greatest number of atoms? 0 0.70 mole NH3 O 0.25 mole SO2 0 0.50 mole Cl20 0.75 mole He
Which of the following samples contains the largest number of atoms: 2.0 g He, 2.0 g Ne, or 2.0 g Ar? How do you know? Justify your choice. Consider the elements aluminum (Al), sodium (Na), and sulfur (S). a. Arrange these three elements in order of increasing ionization energy. b. Discuss how the structures of the atoms of these three elements determine the relative strengths of the attractive electrostatic forces. Be sure to specify what is interacting to create the...
Which ONE of the following samples contains the largest number of atoms? A) 1 g N2 B) 1 g Li C) 1 g Cl2 D) 1 g P4 E) 1 g Mg
Which sample contains the greatest number of atoms. A sample of Zn that contains 4.19×1024 atoms or a 6.72 mole sample of Sr?
35. Which of the following samples contains the largest number of hydrogen atoms? (c) 8.0 moles of C3H6 (a) 6.0 moles of C6H16 (d) 2.0 moles of C2H4 (b) 4.0 moles of C3H8 (e) 3.0 moles of C2H2
QUESTION 6 Which of the following has the greatest number of atoms? A. 1.0 mol He B.0.60 mol H2 C.20 g potassium D.8.5 mL H20 (Density of H20 = 1 g/mL) E 22.6 g KMnO4
#1) Which of the following gas samples contains the greatest mass of gas molecules? a. 1 L of He at STP b. 1 L of Xe at STP c. 1 L of H2 at STP d. All are the same #2) Which physical property/state is incorrectly matched? a. liquids - rigid shape b. gases - easily compressed c. gases and liquids - flow d. solids - higher density than gases e. liquids - incompressible
Calculations Based on Chemical Formulas (Section 6-5) 6-29 Determine the number of atoms present in 20.0 g! samples of each of the following elements? a. Be b. Ar 6-31 Determine the mass, in grams, of each of the following quantities of substance. a. 6.02 x 102 copper atoms b. 3.01 x 102 copper atoms d. 1 silver atom 6-33 Determine the number of moles of substance present in each of the following quantities. a. 10.0 g He b. 10.0 g...
Which of the following atoms should have the greatest polarizability? A) F B) Br C) Po D) Pb E) He
d. Pb 6-31 Determine the mass, in grams, of each of the following quantities of substance. a. 6.02 x 102 copper atoms SIVULLU Determine the number of moles of substance present in each of the following quantities. a. 10.0 g He b. 10.0 g NO c. 4.0 X 1010 atoms P 1 LII01 II 6-37 Determine the number of grams of sulfur present of the following quantities. a. 3.01 x 1023 S O molecules b. 3 SNA molecules c. 2.00...