PRACTICE EXAM for FALL 2013 FINAL EXAM (Unit 6 + review) 1
... How many L of O2 gas are needed to react with 3.00 L of C4H10? Both gases are at STP. b. Mg (s) + 2 HCl (aq) MgCl2 (aq) + H2 (g) How many moles of HCl are needed to produce 25.0 mL H2 gas at STP? c. C2H5OH (l) + 3 O2 (g) 2 CO2 (g) + 3 H2O (l) How many L of CO2 gas at STP are produced when 12.85 ...
... How many L of O2 gas are needed to react with 3.00 L of C4H10? Both gases are at STP. b. Mg (s) + 2 HCl (aq) MgCl2 (aq) + H2 (g) How many moles of HCl are needed to produce 25.0 mL H2 gas at STP? c. C2H5OH (l) + 3 O2 (g) 2 CO2 (g) + 3 H2O (l) How many L of CO2 gas at STP are produced when 12.85 ...
notes - unit 2 - atomic theory_key_2012
... d. That electrons travel around the nucleus in well-defined paths called orbits. 2. J.J. Thomson’s Cathode Ray Tube experiment led to the discovery of a. the positively charged subatomic particle called the electron b. the positively charged subatomic particle called the proton c. the positively cha ...
... d. That electrons travel around the nucleus in well-defined paths called orbits. 2. J.J. Thomson’s Cathode Ray Tube experiment led to the discovery of a. the positively charged subatomic particle called the electron b. the positively charged subatomic particle called the proton c. the positively cha ...
File
... Oxidation Number: a number assigned to an atom in a molecular compound or molecular ion that indicates the general distribution of electrons among the bonded atoms. 1. The oxidation number of any uncombined element is zero. 2. The oxidation number of a monatomic ion equals the charge on the ion. Exa ...
... Oxidation Number: a number assigned to an atom in a molecular compound or molecular ion that indicates the general distribution of electrons among the bonded atoms. 1. The oxidation number of any uncombined element is zero. 2. The oxidation number of a monatomic ion equals the charge on the ion. Exa ...
Problems - El Camino College
... r) Elements in the same column of the penodic table have similar properties. s) The element ror which Z = 38 is in both Group 2A/2 and the fifth period. 5J. The first experiment to suggest that an atom con:.isted of smaller particles showed that one particle had a negative charge. From that fact, wh ...
... r) Elements in the same column of the penodic table have similar properties. s) The element ror which Z = 38 is in both Group 2A/2 and the fifth period. 5J. The first experiment to suggest that an atom con:.isted of smaller particles showed that one particle had a negative charge. From that fact, wh ...
Molecules and Molecular Compounds
... In order for ionic compounds to be electronically neutral, the sum of the charges on the cation and anion in each formula must be zero. ...
... In order for ionic compounds to be electronically neutral, the sum of the charges on the cation and anion in each formula must be zero. ...
filled in teacher version, level 1 only
... particles called atoms. 2. All atoms of a given element are identical (all hydrogen atoms are identical). 3. The atoms of an element are different than the atoms of another element (hydrogen is different than helium). 4. Atoms of one element can combine with the atoms of another element to make comp ...
... particles called atoms. 2. All atoms of a given element are identical (all hydrogen atoms are identical). 3. The atoms of an element are different than the atoms of another element (hydrogen is different than helium). 4. Atoms of one element can combine with the atoms of another element to make comp ...
3 - Study Hungary
... A: the atomic number decreases by 2 and the mass number by 4. B: the atomic number decreases by 4 and the mass number by 2. C: the atomic number increases by 1 and the mass number doesn’t change. D: the loss of a neutron decreases the mass number by 1 and the charge by 1. E: the loss of a proton dec ...
... A: the atomic number decreases by 2 and the mass number by 4. B: the atomic number decreases by 4 and the mass number by 2. C: the atomic number increases by 1 and the mass number doesn’t change. D: the loss of a neutron decreases the mass number by 1 and the charge by 1. E: the loss of a proton dec ...
2015 Academic Challenge CHEMISTRY TEST – STATE
... 23. Which of the following is a correct statement of Hund’s Rule? A. No two electrons may share the same set of quantum numbers. B. The location and the momentum of an electron cannot be known simultaneously. C. Electrons will occupy separate degenerate orbitals and maintain parallel spins before pa ...
... 23. Which of the following is a correct statement of Hund’s Rule? A. No two electrons may share the same set of quantum numbers. B. The location and the momentum of an electron cannot be known simultaneously. C. Electrons will occupy separate degenerate orbitals and maintain parallel spins before pa ...
Types of Chemical Reactions Name_________________________
... Note: Access to some of the websites may not be possible dependent upon your computer system and or the network connection. You are still required to work through each main type of reaction providing balanced chemical equations based on the word descriptions. I. How can I tell if a chemical reaction ...
... Note: Access to some of the websites may not be possible dependent upon your computer system and or the network connection. You are still required to work through each main type of reaction providing balanced chemical equations based on the word descriptions. I. How can I tell if a chemical reaction ...
Introduction to Chemical Reactions
... Chemical Reactions are represented by Chemical Equations. Chemical Equations are balanced to show the same number of atoms of each element on each side. The Law of Conservation of Mass says that atoms won’t be created or destroyed in a chemical reaction. That is why you have to balance chemical equa ...
... Chemical Reactions are represented by Chemical Equations. Chemical Equations are balanced to show the same number of atoms of each element on each side. The Law of Conservation of Mass says that atoms won’t be created or destroyed in a chemical reaction. That is why you have to balance chemical equa ...
(Atomic Theory Day 1).
... substance that cannot be broken down into simpler substances by physical or chemical means NOT THIS KIND OF ELEMENT ...
... substance that cannot be broken down into simpler substances by physical or chemical means NOT THIS KIND OF ELEMENT ...
Chapter 6: Chemical Reactions – Study Guide
... Overall Review: Predict the products for each reaction and balance the equation, if it takes place. Classify each reaction (if it takes place) in as many ways as possible. ...
... Overall Review: Predict the products for each reaction and balance the equation, if it takes place. Classify each reaction (if it takes place) in as many ways as possible. ...
Chemistry 21 A - El Camino College
... 9. a) endothermic reaction is ___________________________________________________________________ b) exothermic reaction is ___________________________________________________________________ 10. The percentage yield is _____________________________________________________________________ __________ ...
... 9. a) endothermic reaction is ___________________________________________________________________ b) exothermic reaction is ___________________________________________________________________ 10. The percentage yield is _____________________________________________________________________ __________ ...
Mass Number, A
... • Protons (___) – posi2ve (+) electrical charge – mass = 1.672623 x 10-‐24 g – rela2ve mass = 1.007 atomic mass units (____) • but we can round to 1 ...
... • Protons (___) – posi2ve (+) electrical charge – mass = 1.672623 x 10-‐24 g – rela2ve mass = 1.007 atomic mass units (____) • but we can round to 1 ...
ExamView - chap 4 retake 2013.tst
... ____ 16. An atom has 23 protons and 29 neutrons. Which is the correct chemical symbol for this atom? V C. 52 Cu D. 52 V A. 296 C B. 29 ...
... ____ 16. An atom has 23 protons and 29 neutrons. Which is the correct chemical symbol for this atom? V C. 52 Cu D. 52 V A. 296 C B. 29 ...
Ionic Bonding
... 1. Draw a Lewis structure and write the molecular formula for each of the following: (a) F2(g) (b) H2O(l) (c) CH4(g) (d) PCl3(s) (e) H2S(g) (f) SiO2(s) 2. Draw Lewis structures and structural formulas for each of the following molecules: (a) H2(g) (d) NF3(g) (b) O3(g) (e) N2H2(g) (c) OF2(g) (f) P2H4 ...
... 1. Draw a Lewis structure and write the molecular formula for each of the following: (a) F2(g) (b) H2O(l) (c) CH4(g) (d) PCl3(s) (e) H2S(g) (f) SiO2(s) 2. Draw Lewis structures and structural formulas for each of the following molecules: (a) H2(g) (d) NF3(g) (b) O3(g) (e) N2H2(g) (c) OF2(g) (f) P2H4 ...
C - Upton-by-Chester High School
... Thermal – using heat (1) To break down the compound (1) 2) What is produced when long alkanes are cracked and explain they are cracked. Short chain alkane (1) Short chain Alkenes (1) These molecules are in higher demand than long chain alkanes (1) 3) Why is the porous pot used in Cracking?Catalyst ...
... Thermal – using heat (1) To break down the compound (1) 2) What is produced when long alkanes are cracked and explain they are cracked. Short chain alkane (1) Short chain Alkenes (1) These molecules are in higher demand than long chain alkanes (1) 3) Why is the porous pot used in Cracking?Catalyst ...
Chemistry Ch3 Honors
... • Each electron in an atom has its own distinct amount of energy. • When an electron in an atom gains a specific amount of energy, the electron is at a higher energy state (excited state). • When an electron returns from a higher energy state to a lower energy state, a specific amount of energy is e ...
... • Each electron in an atom has its own distinct amount of energy. • When an electron in an atom gains a specific amount of energy, the electron is at a higher energy state (excited state). • When an electron returns from a higher energy state to a lower energy state, a specific amount of energy is e ...
Masses of Atoms
... Isotope ~ atoms of the same element, with different numbers of neutrons Atomic Mass Unit ~ 1/12th of the mass of one carbon-12 atom The periodic table shows the atomic mass of Nickel as 58.693. How can there be a decimal point, if the mass is whole numbers of protons and neutrons? ...
... Isotope ~ atoms of the same element, with different numbers of neutrons Atomic Mass Unit ~ 1/12th of the mass of one carbon-12 atom The periodic table shows the atomic mass of Nickel as 58.693. How can there be a decimal point, if the mass is whole numbers of protons and neutrons? ...
chem1a_ch02_lecture - Santa Rosa Junior College
... Transferring electrons from the atoms of one element to those of another results in an ionic compound. ...
... Transferring electrons from the atoms of one element to those of another results in an ionic compound. ...
chem1a_ch02_lecture - Santa Rosa Junior College
... Transferring electrons from the atoms of one element to those of another results in an ionic compound. ...
... Transferring electrons from the atoms of one element to those of another results in an ionic compound. ...
Atomic Structure Study Guide
... The atomic number of an element equals the number of protons in an atom of that element. Hydrogen atoms are the only atoms with a single proton. No two atoms have the same number of protons. Each positive charge in an atom is balance by a negative charge, because all atoms are neutral. The ...
... The atomic number of an element equals the number of protons in an atom of that element. Hydrogen atoms are the only atoms with a single proton. No two atoms have the same number of protons. Each positive charge in an atom is balance by a negative charge, because all atoms are neutral. The ...
chapt4 - Northside Middle School
... Atomic Number = number of protons # of protons determines kind of atom the same as the number of electrons in the neutral atom Mass Number = the number of protons ...
... Atomic Number = number of protons # of protons determines kind of atom the same as the number of electrons in the neutral atom Mass Number = the number of protons ...