Write observation and the complete molecular equation for each reaction. Identify each reaction as redox or non- redox. B1: Ammonium dichromate will decompose and produces a light and fluffy greenish black product with some water condensation on the side of test tube. Observation: Equation: Redox or Non-Redox B2: Copper(II) Sulfate will turn white and some moisture from the inside of the test tube. Observation: Equation: Redox or Non-Redox
Write observation and the complete molecular equation for each reaction. Identify each reaction as redox or non- redox. B1: Ammonium dichromate will decompose and produces a light and fluffy greenish black product with some water condensation on the side of test tube. Observation: Equation: Redox or Non-Redox B2: Copper(II) Sulfate will turn white and some moisture from the inside of the test tube. Observation: Equation: Redox or Non-Redox
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Question
Write observation and the complete molecular equation for each reaction. Identify each reaction as redox or non- redox.
B1: Ammonium dichromate will decompose and produces a light and fluffy greenish black product with some water condensation on the side of test tube.
Observation:
Equation:
Redox or Non-Redox
B2: Copper(II) Sulfate will turn white and some moisture from the inside of the test tube.
Observation:
Equation:
Redox or Non-Redox
Transcribed Image Text:5.
Acids and caustic chemicals are stored in the hood. Please do not take these chemicals from the hood.
PART I - METATHETICAL REACTIONS
Metathetical reactions are sometimes called double-replacement reactions. In these reactions two compounds exchange ions with each
other. Metathetical reactions are usually carried out in aqueous
solution. The general formula for this type of reaction is
AC+BD→AD+BC
A.
PRECIPITATION REACTIONS
In this type of metathetical reaction, a precipitate is formed. The precipitate is indicated by an arrow pointing down or the
physical state indicator (s). The formation of a precipitate may be predicted by using solubility rules or a solubility chart.
Examples:
AgNO,(aq) + NaCl(aq) → AgCl(s) \ + NaN0;(aq)
In these reactions, all of the soluble compounds are considered dissociated into their ions. The ions, which are not involved in the
precipitate, are considered "spectator ions".
PROCEDURES: Perform each
Cd( NO; ), (aq) + (NH,),S(aq) → 2 NH, NO;(aq) + CdS(s)+
of the following reactions.
Write your observations in your
notebook and write the equation for each reaction. Indicate the precipitate.
1.
To a dropperful of 0.1 M calcium nitrate in a test tube, add a dropperful of 0.1 M sodium carbonate.
2.
To a dropperful of 0.1 M magnesium sulfate in a test tube, add a dropperful of 0.1 M sodium hydroxide.
3.
To a dropperful of 0.1 M sodium nitrate in a test tube, add a dropperful of 0.1 M potassium chloride.
В.
ACID-BASE REACTIONS
Transcribed Image Text:|ミ|ミ
>>>>E
|彡1彡
|彡
SOLUBILITY TABLE
CrO
CH,COO
Br
CO3-
OH
NO,
O-
PO
SO
AP
W
A
W
W
A
a
NH,*
W
W
W
W
W
W
W
W
W
--
Ba
W
W
W
W
W
W.
a
d
Ca2+
W
W
Cr
W
W
W
W
d.
--
a
Co+
W
W
W
A
A
W
W
A
A
W
A
Cu
W
W
W
A
a
W
A
W
H*
W
W
W
W
W
W
W
Fe
W
W
W
A
W
A
Fe+
W
W
W
A
W
A
d
A
W
d.
Mg
A
W
W
W
W
Hg"
A
W
A
A
W
A
a
W.
A
W
A
I
Hg*
W
W
W
Ni
W
W
W
W
A
W
W
W
W
W
W
W
W
K
W
W
W
A
Ag
a
--
W
a
10
W
W
W
W
d.
W
W
Na*
W
W
W
W
A
W
d.
A
A
W
A
Sn2+
D
W
W
A
A
A
Sn+
W
W
W
W
W
W
A
W
A
W
A
Zn
W
W
Key to abbreviations:
w= only slightly soluble in water, but soluble in acids
W= soluble in water
A= insoluble in water, but soluble in acids
I= insoluble in both water and acids
d= decomposes in water
a= insoluble in water, and only slightly soluble in acids
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