ALEKS 360 AC INTRD CHEM >I<
5th Edition
ISBN: 9781260977585
Author: BAUER
Publisher: MCG
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Textbook Question
Chapter 2, Problem 2QP
Match the key terms with the descriptions provided.
(a) a member of one of the B groups of elements in the periodic table
(b) a law stating that all samples of a pure compound always contain the same proportions of the component elements
(c) a negatively charged subatomic particle
(d) an ion with a negative charge
(e) a neutral particle consisting of two bound atoms
(f) any element in group VIIIA (18)
(g) a set of elements in the same horizontal row in the periodic table
(h) the number of protons in an atom
(i) the unit of mass used to describe single atoms or small numbers of atomic particles which is equal to one-twelfth the mass of a carbon-l2 atom
(j) a set of elements in the same vertical column in the periodic table
(k) any element in group IIA (2)
(l) the central core of the atom which contains the protons and neutrons and most of the mass of the atom
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Chapter 2 Solutions
ALEKS 360 AC INTRD CHEM >I<
Ch. 2 - What evidence suggests that matter is composed of...Ch. 2 - How can the composition of atom differ?Ch. 2 - How do ions differ from the atoms of elements?Ch. 2 - How can we describe the mass of the atoms of the...Ch. 2 - How does the periodic table relate to the...Ch. 2 - For the atom represented in the following diagram,...Ch. 2 - A rare isotope of carbon has a mass number of 14....Ch. 2 - Write two representations for the following...Ch. 2 - Determine the number of neutrons in each of the...Ch. 2 - How many protons and electrons compose the...
Ch. 2 - Write the isotope symbols for ions that have the...Ch. 2 - The copper mined from Earth’s crust consists of...Ch. 2 - The element lithium is composed of two isotopes,...Ch. 2 - Identify the element that is described. (a) the...Ch. 2 - Prob. 10PPCh. 2 - Match the key terms with the descriptions...Ch. 2 - Match the key terms with the descriptions...Ch. 2 - Prob. 3QPCh. 2 - What modern technique allows us to “see� the...Ch. 2 - How does Dalton‘s atomic theory describe atoms...Ch. 2 - How does Dalton’s atomic the theory the law of...Ch. 2 - How does Dalton‘s atomic theory explain the law...Ch. 2 - How does Dalton's atomic theory explain the...Ch. 2 - Does the following diagram represent a chemical...Ch. 2 - Does the following diagram represent a chemical...Ch. 2 - Which experiment showed that all atoms contain...Ch. 2 - What information about the structure of the atom...Ch. 2 - Which subatomic particles are negatively charged?Ch. 2 - Which subatomic particles are positively charged?Ch. 2 - Helium is used in balloons and blimps because of...Ch. 2 - Hydrogcn-3 (tritium) is used as a tracer in...Ch. 2 - Which subatomic particle has approximately the...Ch. 2 - Which of the following best describes about how...Ch. 2 - Explain why the mass of a carbon atom is about...Ch. 2 - Which subatomic particle was discovered last? Why...Ch. 2 - Prob. 21QPCh. 2 - How many protons are in each atom of each of the...Ch. 2 - The number of which subatomic particle determines...Ch. 2 - How do isotopes of an element differ?Ch. 2 - What information do you need to determine the...Ch. 2 - What information do you need to determine the mass...Ch. 2 - Which of the following are always the same for...Ch. 2 - Which of the following are different for isotopes...Ch. 2 - Given the composition of the nuclei, what are the...Ch. 2 - Identify the element from the atom shown. What are...Ch. 2 - What are the atomic number, neutron number, and...Ch. 2 - Identify the element from the atom shown. What are...Ch. 2 - Prob. 33QPCh. 2 - How many protons, neutrons, and electrons are in...Ch. 2 - What is the isotope symbol for atoms that contain...Ch. 2 - What is the isotope symbol for atoms that contain...Ch. 2 - How many protons and neutrons are in an atom...Ch. 2 - How many protons and neutrons are in an atom...Ch. 2 - A study of blood flow in heart muscle uses...Ch. 2 - Phosphorus-32 can be used to treat eye tumors. How...Ch. 2 - Complete the following table for the designated...Ch. 2 - Complete the following table for the designated...Ch. 2 - How do an atom and an ion of the same element...Ch. 2 - What changes when an ion forms from an atom, or...Ch. 2 - Prob. 45QPCh. 2 - What forms when an ion with a 1+ charge undergoes...Ch. 2 - Prob. 47QPCh. 2 - Write the symbol for the ion that is formed after...Ch. 2 - How many protons and electrons are found in each...Ch. 2 - How many protons and electrons are found in each...Ch. 2 - Prob. 51QPCh. 2 - Prob. 52QPCh. 2 - What element has 18 electrons when it forms a...Ch. 2 - What element has 18 electrons when it forms an...Ch. 2 - What element has 27 electrons when it forms a...Ch. 2 - What element has 46 electrons when it forms a...Ch. 2 - How do 7Li+6Li each differ from a neutral...Ch. 2 - How do B3579r and B3581r Br differ in their...Ch. 2 - Potassium citrate is a compound found in some...Ch. 2 - Calcium citrate is a compound found in some...Ch. 2 - What is the basis for the atomic mass unit (amu)...Ch. 2 - What is the mass of a carbon-12 atom on the amu...Ch. 2 - What is the approximate mass, in atomic mass...Ch. 2 - Estimate the combined mass (in atomic mass units)...Ch. 2 - Approximately how much greater in mass is a D2...Ch. 2 - Approximately how much greater in mass is a D2O...Ch. 2 - Approximately how much greater in mass is a...Ch. 2 - Approximately how much greater in mass is a...Ch. 2 - Why do we use the amu mass scale instead of the...Ch. 2 - What is the relationship between grams and atomic...Ch. 2 - What is the difference between the mass of an atom...Ch. 2 - Which isotope has exactly the same mass (in atomic...Ch. 2 - How is the mass of an individual atom determined?...Ch. 2 - Which of the following is most likely the mass of...Ch. 2 - Naturally occurring calcium is composed of two...Ch. 2 - Naturally occurring silicon is composed mostly of...Ch. 2 - An unknown element (X) discovered on a planet in...Ch. 2 - Suppose that the isotope abundance of magnesium on...Ch. 2 - The mass spectrum of nickel is shown. (a) What is...Ch. 2 - The mass spectrum of magnesium is shown. (a) What...Ch. 2 - What is the mass in amu of 1000 boron atoms?Ch. 2 - What is the mass in amu of 1000 mercury atoms?Ch. 2 - Which contains more atoms, 2500 amu of boron atoms...Ch. 2 - A sample of pure silver and a simple of pure gold...Ch. 2 - Identify which of the elements Br, K, Mg, Al, Mn,...Ch. 2 - Identify which of the elements He, Zn, Pb, L Ca,...Ch. 2 - Prob. 87QPCh. 2 - Name the element that is an alkaline earth metal...Ch. 2 - What element is in group IVB (4) and in period 4?Ch. 2 - What element is in group IVA (14) and in period 2?Ch. 2 - Identify each of the following elements as a...Ch. 2 - Identify each of the following elements as a...Ch. 2 - Identify the following elements as a main-group...Ch. 2 - Identify the following elements as a main-group...Ch. 2 - Prob. 95QPCh. 2 - Prob. 96QPCh. 2 - Prob. 97QPCh. 2 - Prob. 98QPCh. 2 - Prob. 99QPCh. 2 - The noble gases are sometimes called “inert...Ch. 2 - The ions of many of the main-group elements have...Ch. 2 - Prob. 102QPCh. 2 - Identify the groups of the periodic table in which...Ch. 2 - For each group listed. identify the charge on the...Ch. 2 - Prob. 105QPCh. 2 - Prob. 106QPCh. 2 - Prob. 107QPCh. 2 - Chlorine gas reacts with potassium to form a...Ch. 2 - When iron rusts. a compound forms with the formula...Ch. 2 - Is the law of conservation of mass obeyed in the...Ch. 2 - A 100-g sample of zinc sul�de contains 67.1 g...Ch. 2 - A 100-g sample of HgO contains 92.6 g mercury and...Ch. 2 - What properties of electrons contributed to why...Ch. 2 - What experimental evidence led to each of the...Ch. 2 - Which isotope has a mass number of 60 and an...Ch. 2 - Why is it impossible for an element to have a mass...Ch. 2 - How many protons and neutrons are in a...Ch. 2 - What number of each type of subatomic particle is...Ch. 2 - Explain why the relative atomic mass of cobalt is...Ch. 2 - Which element has an isotope that has a mass...Ch. 2 - Some tables list relative atomic mass to as many...Ch. 2 - How many atoms are in each of the following...Ch. 2 - Naturally occurring iodine is composed of only one...Ch. 2 - Prob. 124QPCh. 2 - A sample of pure carbon and a sample of pure...Ch. 2 - Two equal-volume balloons contain the same number...Ch. 2 - Naturally occurring boron comprises two isotopes,...Ch. 2 - Prob. 128QPCh. 2 - Prob. 129QPCh. 2 - Nitrogen and oxygen are the main components of the...Ch. 2 - Prob. 131QPCh. 2 - Which element is the only nonmetal in group IVA...Ch. 2 - Prob. 133QPCh. 2 - Prob. 134QPCh. 2 - Complete the following table for the designated...Ch. 2 - Atoms of the element shown in this photo contain...Ch. 2 - Positron emission tomography (PET) is used in...Ch. 2 - When silver tarnishes, a chemical reaction occurs...Ch. 2 - The iron found in the human body is in the form of...Ch. 2 - Which has the greater density, an ice cube...Ch. 2 - Prob. 141QPCh. 2 - After he conducted cathode ray tube experiments...Ch. 2 - Analysis of carbon-14 content is used to date...Ch. 2 - A naturally occurring isotope of potassium has a...Ch. 2 - Prob. 145QPCh. 2 - A monatomic ion with a 4+ charge has the same...Ch. 2 - Which of the following has the greatest number of...Ch. 2 - Prob. 148QPCh. 2 - Atoms that are isotopes of the same element differ...Ch. 2 - Which of the following statements about atoms and...Ch. 2 - Elements in which group always form monatomic ions...Ch. 2 - Identify the number of protons and neutrons in an...Ch. 2 - Naturally occurring gallium (Ga) is made of two...Ch. 2 - Which of the following elements is classi�ed as...
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