Speed of Chemical Reactions

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Quiz on reaction rates

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Yassmin Soliman Eldafrawy

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Froggy Jumps Speed of Chemical ReactionsVersión en línea Quiz on reaction rates por Yassmin Soliman Eldafrawy 1 Which example shows a very fast chemical reaction? a Rusting of iron b Formation of petroleum from deep earth c Fireworks reactions 2 Which example shows a very fast chemical reaction? a Rusting of iron b Formation of petroleum from deep earth c Fireworks reactions 3 Which process is slower: soap from oil via NaOH or fireworks? a Decomposition of N2O5 b Soap formation from oil and NaOH c Fireworks reactions 4 What is the general measure of reaction speed? a Amount of heat released b Color of the solution c Change in reactant/product concentrations per unit time 5 In the decomposition of N2O5, what happens to N2O5? a Its concentration increases b Its concentration decreases c It forms more N2O5 6 What are the products when N2O5 decomposes? a NO and O2 b N2 and O c NO2 and O2 7 In the CuSO4 + NaOH example, what is used to measure speed? a Color change to red b Disappearance of blue CuSO4 color c Bubbling of gas 8 Which observation marks the formation of copper hydroxide in the CuSO4/NaOH reaction? a Gas evolution b Orange precipitate c Blue precipitate forms 9 How long does rusting of iron typically take? a Minutes b Several months c Seconds 10 How long can Earth's interior reactions take to form resources like oil? a Hours b Days c Hundreds to millions of years 11 What is the key factor in defining reaction speed in the examples? a Concentration changes over time b Temperature only c Pressure only

Froggy Jumps

Speed of Chemical ReactionsVersión en línea

Quiz on reaction rates

por Yassmin Soliman Eldafrawy

Which example shows a very fast chemical reaction?

Rusting of iron

Formation of petroleum from deep earth

Fireworks reactions

Which example shows a very fast chemical reaction?

Rusting of iron

Formation of petroleum from deep earth

Fireworks reactions

Which process is slower: soap from oil via NaOH or fireworks?

Decomposition of N2O5

Soap formation from oil and NaOH

Fireworks reactions

What is the general measure of reaction speed?

Amount of heat released

Color of the solution

Change in reactant/product concentrations per unit time

In the decomposition of N2O5, what happens to N2O5?

Its concentration increases

Its concentration decreases

It forms more N2O5

What are the products when N2O5 decomposes?

NO and O2

N2 and O

NO2 and O2

In the CuSO4 + NaOH example, what is used to measure speed?

Color change to red

Disappearance of blue CuSO4 color

Bubbling of gas

Which observation marks the formation of copper hydroxide in the CuSO4/NaOH reaction?

Gas evolution

Orange precipitate

Blue precipitate forms

How long does rusting of iron typically take?

Minutes

Several months

Seconds

How long can Earth's interior reactions take to form resources like oil?

Hours

Days

Hundreds to millions of years

What is the key factor in defining reaction speed in the examples?

Concentration changes over time

Temperature only

Pressure only

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Speed of Chemical Reactions

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Speed of Chemical ReactionsVersión en línea

por Yassmin Soliman Eldafrawy

Which example shows a very fast chemical reaction?

Which example shows a very fast chemical reaction?

Which process is slower: soap from oil via NaOH or fireworks?

What is the general measure of reaction speed?

In the decomposition of N2O5, what happens to N2O5?

What are the products when N2O5 decomposes?

In the CuSO4 + NaOH example, what is used to measure speed?

Which observation marks the formation of copper hydroxide in the CuSO4/NaOH reaction?

How long does rusting of iron typically take?

How long can Earth's interior reactions take to form resources like oil?

What is the key factor in defining reaction speed in the examples?

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