| Question | Answer |
| The mass of 2 moles of oxygen atoms is | 32.00 g
|
The lowest whole-number ratio of elements in a compound is called the | empirical formula
| In the reaction N2 + 3H2 ® 2NH3, what is the mole ratio of nitrogen to ammonia? | 1:2
| Calculate the molecular formula for a compound is K2Cr2O4 what is the empirical formula? | KCrO2
| Question 6 The coefficients in a chemical equation represent the | relative numbers of moles of reactants and products
| Question 7 | What is the molarity of a solution that contains 0.202 mole KCl in 7.98 L solution?
| Question 8 Oxygen in nitrogen is an example of which solute-solvent combination? | gas-gas
| Question 9 To conduct electricity, a solution must contain | ions
| Question 10 Which of the following is likely to produce crystals if disturbed? | a supersaturated solution or a concentrated solution
| Question 11 In the expression like dissolves like, the word like refers to similarity in molecular | polarity
| Question 12 As temperature increases, solubility of solids in liquids | increases
| Question 13 Which of the following is chloric acid? | HClO HClO3
| Question 14 Hydroxides of Group 1 metals | are all strong bases or are all acids
| Question 15 The pH scale in general use ranges from | 0 to 14
| Question 16 An electron-pair acceptor is a | Bronsted-Lowry base
| Question 17 A water solution whose pH is 10 is always | basic
| Question 18 What is the hydroxide ion concentration of a solution whose pH is 12.40 | 2.5 X 10-2 M
| Question 19 In the reaction HClO3 + NH3 NH4+ + ClO3–, the conjugate base of HClO3 is | ClO3-
| Question 20 Convert the pressure 0.840 atm to mm Hg. | 638 mm Hg
| Question 21 The combining of two nuclei to form one nucleus with a larger mass is called a ____________. | Fusion
| Question 22 An ice cube has fallen in warm water. Which way will heat flow? | Into the ice cube |
