(a) Interpretation: Whether the powder is an element or a compound is to be predicted. Concept introduction: Element is a purest form of substance that cannot be broken down using chemical reactions . A compound is a pure substance formed when two or more chemical elements are chemically bonded together and can be broken down using chemical reactions Element as well as compound both has definite composition and properties.
(a) Interpretation: Whether the powder is an element or a compound is to be predicted. Concept introduction: Element is a purest form of substance that cannot be broken down using chemical reactions . A compound is a pure substance formed when two or more chemical elements are chemically bonded together and can be broken down using chemical reactions Element as well as compound both has definite composition and properties.
Solution Summary: The author explains whether the powder is an element or a compound, and whether it is homogenous or heterogeneous.
Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.
Chapter 2, Problem 75E
Interpretation Introduction
(a)
Interpretation:
Whether the powder is an element or a compound is to be predicted.
Concept introduction:
Element is a purest form of substance that cannot be broken down using chemical reactions. A compound is a pure substance formed when two or more chemical elements are chemically bonded together and can be broken down using chemical reactions
Element as well as compound both has definite composition and properties.
Interpretation Introduction
(b)
Interpretation:
Whether the contents of the box are homogenous or heterogeneous is to be predicted.
Concept introduction:
A homogeneous mixture has the same proportions of its components throughout a given sample having uniform appearance. A heterogeneous mixture has components whose proportions vary throughout the sample and visibly different substances the appearance is not uniform throughout.
Interpretation Introduction
(c)
Interpretation:
Whether the contents of the box are either a pure substance or a mixture is to be predicted.
Concept introduction:
A mixture is defined as a substance made by combination of two or more different materials in such a way that no chemical reaction occurs. A mixture can usually be separated back into its original components by various chemical or physical methods.
A pure substance has constant physical and chemical properties and cannot be separated by any physical or chemical methods it does not have varying composition.
1A
H 2A
Li Be
Use the References to access important values if needed for this question.
8A
3A 4A 5A 6A 7A He
B C N O F Ne
Na Mg 3B 4B 5B 6B 7B 8B-1B 2B Al Si P
1B 2B Al Si
P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
*
Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Rf Ha
******
Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
Analyze the following reaction by looking at the electron configurations given below each box.
Put a number and a symbol in each box to show the number and kind of the corresponding atom or ion.
Use the smallest integers possible.
cation
anion
+
+
Shell 1: 2
Shell 2: 8
Shell 3: 1
Shell 1 : 2
Shell 2 : 6
Shell 1 : 2
Shell 2: 8
Shell 1: 2
Shell 2: 8
None
IV.
Show the detailed synthesis strategy for the following compounds.
a. CH3CH2CH2CH2Br
CH3CH2CCH2CH2CH3
Chapter 2 Solutions
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