- 1.1: What is chemistry?
- 1.2: What branch of chemistry is most concerned lowing reaction: with th...
- 1.3: What is meant by the word chemical, as used by scientists?
- 1.4: In which of the six branches of chemistry would a scientist be work...
- 1.5: Identify each of the following as an example of either basic resear...
- 1.6: a. What is mass? b. What is volume?
- 1.7: How does the composition of a pure compound differ from that of a m...
- 1.8: a. Define property. b. How are properties useful in classifying mat...
- 1.9: What is the difference between extensive properties and intensive p...
- 1.10: a. Define chemical property. b. List two examples of chemical prope...
- 1.11: Distinguish between a physical change and a chemical change.
- 1.12: a. How does a solid differ from a liquid? b. How does a liquid diff...
- 1.13: What is meant by a change in state?
- 1.14: Identify the reactants and products in the following reaction: pota...
- 1.15: Suppose different parts of a sample material have different composi...
- 1.16: What is the significance of the vertical columns of the periodic ta...
- 1.17: Compare the physical properties of metals, nonmetals, metalloids, a...
- 1.18: Suppose element X is a poor conductor of electricity and breaks whe...
- 1.19: Use the periodic table to write the names of the elements that have...
- 1.20: An unknown element is shiny and is found to be a good conductor of ...
- 1.21: Use the periodic table to identify the group numbers and period num...
- 1.22: a. Define physical property. b. List two examples of physical prope...
- 1.23: How can you tell the difference between an element and a compound?
- 1.24: Identify each of the following as either a physical change or a che...
- 1.25: Write a brief paragraph that shows that you understand the followin...
- 1.26: Pick an object you can see right now. List three of the object's ph...
- 1.27: Interpreting Concepts One way to make lemonade is to start by combi...
- 1.28: Analyzing Results A pure white, solid material that looks like tabl...
- 1.29: Interpreting Concepts a. Is breaking an egg an example of a physica...
- 1.30: Review the information on trace elements in the Elements Handbook i...
- 1.31: Research any current technological product of your choosing. Find o...
- 1.32: Investigate current and proposed technological applications of supe...
- 1.33: During a 1 h period, make a list of all the changes that you see ar...
- 1.34: Make a concept map using at least 15 terms from the vocabulary list...
Solutions for Chapter 1: Matter and Change
Full solutions for Modern Chemistry | 1st Edition
Hormones that are secreted by the cortex (the outer layer) of the adrenal glands. Adrenocortical hormones are typically characterized by a carbonyl group or hydroxyl group at C11 of the steroid skeleton.
alkaline earth metals.
The Group 2A elements (Be, Mg, Ca, Sr, Ba, and Ra). (2.4)
A synthetic method that employs diethyl acetamidomalonate as the starting material and enables the preparation of racemic a-amino acids.
For mechanisms, a step that involves two chemical entities.
A substance composed of atoms of two or more elements chemically united in fixed proportions. (1.4)
Compounds with the same molecular formula but a different connectivity of their atoms
The number of adjacent atoms to which an atom is directly bonded. In a complex the coordination number of the metal ion is the number of donor atoms to which it is bonded. (Sections 12.37 and 24.2)
The metal ion and its surrounding ligands. (Section 23.2)
A compound containing two adjacent p bonds.
The angle created by two intersecting planes.
A termination process that involves the abstraction of a hydrogen atom from the beta position of the propagating radical of one chain by the radical endgroup of another chain.
Polymers that return to their original shape after being stretched.
high-resolution mass spectrometry
A technique that involves the use of a detector that can measure the m/z values to four decimal places.This technique allows for the determination of the molecular formula of an unknown compound.
ignal splitting in NMR
Spin-spin coupling with adjacent nuclei split NMR signals depending on the extent of coupling and the number of adjacent equivalent nuclei.
isoelectric point (pI)
For an amino acid, the specific pH at which the concentration of the zwitterionic form reaches its maximum value.
Possessing the ability to rotate the plane of polarized light. (Section 23.4)
polar covalent bond
A covalent bond in which the electrons are not shared equally. (Section 8.4)
Shielding in NMR
Also called diamagnetic shielding; the term refers to the reduction in magnetic fi eld strength experienced by a nucleus underneath electron density induced to circulate when the molecule is placed in a strong magnetic fi eld.
The strain that arises when nonbonded atoms separated by four or more bonds are forced closer to each other than their atomic (contact) radii would allow. Steric strain is also called non-bonded interaction strain, or van der Waals strain.
A term used to indicate that exactly three alkyl groups are attached directly to a particular position. For example, a tertiary carbocation has three alkyl groups attached directly to the electrophilic carbon atom (C+).