The “Chemistry in Focus” segment The Beetle That Shoots Straight discusses the bombardier beetle and the chemical reaction of the decomposition of hydrogen peroxide. m:math> H 2 O 2 ( a q ) → H 2 O ( l ) + O 2 ( g ) e balanced equation given in the segment is m:math> 2 H 2 O 2 ( a q ) → 2 H 2 O ( l ) + O 2 ( g ) y can’t we balance the equation in the following way? m:math> H 2 O 2 ( a q ) → H 2 ( g ) + O 2 ( g ) e molecular-level pictures like those in Section 6.3 to support your answer.
The “Chemistry in Focus” segment The Beetle That Shoots Straight discusses the bombardier beetle and the chemical reaction of the decomposition of hydrogen peroxide. m:math> H 2 O 2 ( a q ) → H 2 O ( l ) + O 2 ( g ) e balanced equation given in the segment is m:math> 2 H 2 O 2 ( a q ) → 2 H 2 O ( l ) + O 2 ( g ) y can’t we balance the equation in the following way? m:math> H 2 O 2 ( a q ) → H 2 ( g ) + O 2 ( g ) e molecular-level pictures like those in Section 6.3 to support your answer.
Solution Summary: The author explains the reason why the given balanced equation of decomposition of hydrogen peroxide cannot be balanced in a differently mentioned way.
The “Chemistry in Focus” segment The Beetle That Shoots Straight discusses the bombardier beetle and the chemical reaction of the decomposition of hydrogen peroxide.
m:math>
H
2
O
2
(
a
q
)
→
H
2
O
(
l
)
+
O
2
(
g
)
e balanced equation given in the segment is
m:math>
2
H
2
O
2
(
a
q
)
→
2
H
2
O
(
l
)
+
O
2
(
g
)
y can’t we balance the equation in the following way?
m:math>
H
2
O
2
(
a
q
)
→
H
2
(
g
)
+
O
2
(
g
)
e molecular-level pictures like those in Section 6.3 to support your answer.
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.
2. Platinum and other group 10 metals often act as solid phase hydrogenation catalysts for
unsaturated hydrocarbons such as propylene, CH3CHCH2. In order for the reaction to be
catalyzed the propylene molecules must first adsorb onto the surface. In order to completely
cover the surface of a piece of platinum that has an area of 1.50 cm² with propylene, a total
of 3.45 x 10¹7 molecules are needed. Determine the mass of the propylene molecules that
have been absorbed onto the platinum surface.
Chem 141, Dr. Haefner
2. (a) Many main group oxides form acidic solutions when added to water. For example solid
tetraphosphorous decaoxide reacts with water to produce phosphoric acid. Write a balanced
chemical equation for this reaction.
(b) Calcium phosphate reacts with silicon dioxide and carbon graphite at elevated temperatures
to produce white phosphorous (P4) as a gas along with calcium silicate (Silcate ion is SiO3²-)
and carbon monoxide. Write a balanced chemical equation for this reaction.
Problem Set 4a Chem 1411. A latex balloon is filled with a total of carbon dioxide gas so that its volume reaches 1.352 L. The balloon whose weight was originally 0.753 g, now weighs 2.538 g. How many molecules of carbon dioxide have been added to the balloon?
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