# Moles & Stoich Test Review #2: Question Preview (ID: 5415)

### Below is a preview of the questions contained within the game titled MOLES & STOICH TEST REVIEW #2: WRHS-2nd Semester Chemistry .To play games using this data set, follow the directions below. Good luck and have fun. Enjoy! [print these questions]

**Play games to reveal the correct answers. Click here to play a game and get the answers.**

To solve problems in this unit we use a series of conversion factors. What is this calculation method called? |
||||

a) dimensional analysis | b) geometry | c) guess & check | d) cross multiplication | |

What do you call the mass of 1 mole of a substance? |
||||

a) molar mass | b) molarity | c) atomic mass | d) mole | |

What is the molar mass of ammonia (NH3)? |
||||

a) 17 g/mol | b) 14 g/mol | c) 45 g/mol | d) 15 g/mol | |

How many atoms of aluminum are in 14.9g of aluminum? |
||||

a) 3.3 x 10^23 | b) 0.55 | c) 9.2 x 10^-25 | d) 9.0 x 10^24 | |

What is the percent composition of sodium in sodium phosphate? |
||||

a) 42% | b) 14% | c) 19% | d) 58% | |

What is the limiting reagent when 65 grams of iron and 130 grams of chlorine gas react? (see equation 1) |
||||

a) Cl | b) Cl2 | c) Fe | d) not enough information | |

What are the coefficients when equation 3 is balanced? |
||||

a) 2,1,2 | b) 4,2,4 | c) 1,1,1 | d) 3,2,3 | |

What is the ratio of O2 : H2O in equation 4? |
||||

a) 5:2 | b) 7:5 | c) 1:1 | d) 5:3 | |

What is the theoretical yield of copper (II) nitrate if 3.4g Cu react with and excess of silver nitrate? What is the percent yield if the actual yield is 7.5g? (see equation 5) |
||||

a) 10.03g, 75% | b) 3.4g, 220% | c) 637, 1.2% | d) 20.1g, 37% | |

How many atoms of oxygen in Ca3(PO4)2? |
||||

a) 2 | b) 4 | c) 6 | d) 8 | |

Play Games with the Questions above at ReviewGameZone.com

To play games using the questions from the data set above, visit ReviewGameZone.com and enter game ID number: 5415 in the upper right hand corner at ReviewGameZone.com or simply click on the link above this text.

To play games using the questions from the data set above, visit ReviewGameZone.com and enter game ID number: 5415 in the upper right hand corner at ReviewGameZone.com or simply click on the link above this text.

TEACHERS / EDUCATORS

Log In | Sign Up / Register

Log In | Sign Up / Register