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andre [41]
3 years ago
13

Mr. Cortez asked his students to give examples in which electrical energy is transformed into heat. Students worked in a small g

roup. They recorded their answers in a table. If you were Mr. Cortez, how would you comment on the answers in the table? A) Only Jane is correct. B) All the students are correct. C) Emily and Michelle are correct. D) Everyone except John is correct.
Chemistry
2 answers:
Lunna [17]3 years ago
7 0
You have to post the table
blagie [28]3 years ago
4 0

Answer:

B. everyone is right

Explanation:

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Why isn't there a lunar eclipse every time Earth is in between the sun and<br> the Moon?
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Because the Earth's orbit around the sun is not in the same plane as the Moon's orbit around the Earth.
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3 years ago
An excited ozone molecule, O3*, in the atmosphere can undergo one of the following reactions,O3* → O3 (1) fluorescenceO3* → O +
Maurinko [17]

Answer:

The simplified expression for the fraction  is  \text {X} =    \dfrac{  {k_3  \times cM} }{k_1 +k_2 + k_3 }

Explanation:

From the given information:

O3* → O3                   (1)    fluorescence

O + O2                      (2)    decomposition

O3* + M → O3 + M    (3)     deactivation

The rate of fluorescence = rate of constant (k₁) × Concentration of reactant (cO)

The rate of decomposition is = k₂ × cO

The rate of deactivation = k₃ × cO × cM

where cM is the concentration of the inert molecule

The fraction (X) of ozone molecules undergoing deactivation in terms of the rate constants can be expressed by using the formula:

\text {X} =    \dfrac{ \text {rate of deactivation} }{ \text {(rate of fluorescence) +(rate of decomposition) + (rate of deactivation) }  } }

\text {X} =    \dfrac{  {k_3 \times cO \times cM} }{  {(k_1 \times cO) +(k_2 \times cO) + (k_3 \times cO \times cM) }  }

\text {X} =    \dfrac{  {k_3 \times cO \times cM} }{cO (k_1 +k_2 + k_3  \times cM) }

\text {X} =    \dfrac{  {k_3  \times cM} }{k_1 +k_2 + k_3  }    since  cM is the concentration of the inert molecule

7 0
3 years ago
Determine the oxidation number of the element "J" in H3JO2-
igor_vitrenko [27]

Answer:

Oxidation number:

3*1+ oxidation number of J+2*-2= -1

Oxidation number of J = 0

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2 years ago
What kind of chemical reaction does the chemical equation sodium + chlorine → sodium chloride represent?
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This would represent a synthesis reaction 
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3 years ago
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1. Which of the following is an SI base unit for time? (2 points)
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Number one would be Decades
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