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Tpy6a [65]
3 years ago
6

What is meant by the term activation energy?

Chemistry
1 answer:
Zinaida [17]3 years ago
5 0
The least amount of energy required to activate atoms or molecules to a state in which they can undergo a chemical reaction.
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What happens to the liquid in a thermometer when it is moved from cold water to boiling water?
MissTica
Nothing it just changes temp as it is protected by glass layers
5 0
3 years ago
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In 1901, Thomas Edison invented the nickel-iron battery. The follwing reaction takes place in the battery.
lys-0071 [83]

Answer: The number of moles of Fe(OH)_2  produced are, 3.60 moles.

Explanation :

First we have to calculate the limiting and excess reagent.

The balanced chemical equation is:

Fe(s)+2NiO(OH)(s)+2H_2O(l)\rightarrow Fe(OH)_2(s)+2Ni(OH)_2(aq)

From the balanced reaction we conclude that

As, 1 mole of Fe react with 2 mole of NiO(OH)

So, 3.60 moles of Fe react with 3.60\times 2=7.2 moles of NiO(OH)

From this we conclude that, NiO(OH) is an excess reagent because the given moles are greater than the required moles and Fe is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of Fe(OH)_2

From the reaction, we conclude that

As, 1  mole of Fe react to give 1 mole of Fe(OH)_2

So, 3.60 mole of Fe react to give 3.60 mole of Fe(OH)_2

Therefore, the number of moles of Fe(OH)_2  produced are, 3.60 moles.

7 0
3 years ago
What is 3 ethyl 3, 4 dimethylheptane abbreviated structural formula?<br>​
yulyashka [42]

Answer:

                    CH2- CH3

                     |

CH3 - CH2 - C        -     CH - CH2 - CH2 - CH3

                     |                 |

                    CH3           CH3

Explanation:

Heptane

CH3 - CH2 - CH2 - CH2 - CH2 - CH2 - CH3

3 ethyl 3, 4 dimethylheptane

                    CH2- CH3

                     |

CH3 - CH2 - C        -     CH - CH2 - CH2 - CH3

                     |                 |

                    CH3           CH3

6 0
3 years ago
Which conversion factor would you use to correctly calculate the number of moles in 25.0 g of the element titanium (ti) ?
Gennadij [26K]
To convert grams to moles, you need molar mass. 

according to the periodic table, the molar mass of 47.88 g/mol. answer is C
4 0
3 years ago
What type of reaction is KOH + H2SO4
Lady_Fox [76]
<span> neutralization, cause the acid and base react</span>
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