Types of Chemical Reactions Homework 15 with Answers Professor Haiby
1 The following reaction: NaCl + AgNO3 AgCl + NaNO3, is an example of
A Combination B Decomposition C Single-displacement D Double-displacement
2 The following reaction: 2H2 + O2 2H2O, i
Fundamentals of Chemistry Pretest
1 A broad generalization based on the results of many experiments is called:
A The scientific method B A Scientific law C A Theory D A Hypothesis E An Empirical fact
2 The statement The boiling point of water is 100 degre
1 Which is a cation?
A He B Na C Fe+3 D N-3
2 The formula for sodium carbonate Na2CO3, represents a compound composed of,
A Two atoms of sodium, three atoms of carbon and three atoms of oxygen B Two atoms of
sodium, one atom of carbon a
1 Which one of the following elements is most likely to form a 1+ ion?
A Beryllium B Carbon C Fluorine D Oxygen E Sodium
2 The elements in a column of the periodic table are known as
A Metalloids B Periods C Noble gases D Groups E Nonmet
Practice Test on Nomenclature, The Mole, Balancing equations and empirical formulas.
1 What is the correct name for the Cu + 1 ion?
A Cobalt(2) B Copper (1) C Copper (2) D Chromium (2)
2 What is the formula of magnesium sulfide?
A Mg2S B MgS2 C MgS D Mg3S
The Mole Homework with answers
1 Which of the following substances is paired with the incorrect molar mass?
A S8 32.06g B Na 22.99g C NO2 46.01g D 2.4 1023
2 How many grams are present in 6.50 moles Cu(NO3)2 (molar mass = 188)
A 124 g B 404g C 1080g D 122
Significant Figure Homework with Answers
1 How many significant figures are in the number 14.04
2 One centigram is equal to
A 0.001g B 0.01g C 100g D 1000g
3 How many meter are there in one kilometer?
A 10-3 B 10-2 C 10-6 D 103 E 106
4 How many s
Classifying Matter Homework with Answers
1 Which of the following is not a physical property of gold?
A its characteristic color B Its electrical conductivity C its density D None of the above.
2 Which of the following is a physical change?
A Stretching a
Naming Ionic Compounds Homework With Answers
1 What is the correct name for the Cu+2 ion?
A Cobalt(2) B Copper(1) C Copper(2) D Chromium(2)
2 What is the correct name for the Ca+2 ion?
A Calcium B Cobalt C Calcide D Cobide
3 A magnesium atom is converted
Covalent Bonds Homework with Answers
1 Which type of chemical bond involves the equal sharing of electrons?
A Ionic B Polar Covalent C Nonpolar Covalent
2 Which type of chemical bond involves the unequal sharing of electrons?
A Ionic B Polar Covalent C No