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Ivan
4 years ago
14

Explain what it means for a reaction to be endothermic and what would happen to the temperature recorded by a thermometer in an

endothermic reaction. ...?
Chemistry
2 answers:
7nadin3 [17]4 years ago
5 0
An endothermic reaction needs energy to proceed, such energy is usually taken from the environment surrounding the reaction. In the typical case this energy is expressed as  heat. Heat is an state of atomic activity, that energy is transferred to an ENDOthermic reaction so the initial threshold of reaction is overcome and the final reaction can occur.
kykrilka [37]4 years ago
5 0

Answer: 1. For a endothermic reaction , energy is absorbed

2. The temperature recorded by a thermometer in an endothermic reaction would be reduced.

Explanation:

Endothermic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat and \Delta H which is difference between energy of products and energy of reactants come out to be positive.  The temperature of the surroundings will decrease.

Exothermic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and \Delta H which is difference between energy of products and energy of reactants comes out to be negative.The temperature of the surroundings will increase.

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Matt has found a book on various marine zones. A picture illustrates a zone that shows diffused penetration of sunlight in water
Ugo [173]

Answer:

the mesopelagic, dysphotic, or twilight zone

Explanation:

Marine zones are the divisions of the ocean. The ocean is divided into two basic parts; the pelagic or open ocean, and the benthic or sea floor.

The pelagic zone is further divided into five broad zones according to how far down sunlight penetrates and they are:

1) the epipelagic, euphotic, or sunlit zone: the top layer of the ocean where enough sunlight penetrates for plants to carry on photosynthesis.

2) the mesopelagic, dysphotic, or twilight zone: a dim zone where some light penetrates, but not enough for plants to grow.

3) the bathypelagic, aphotic, or midnight zone: the deep ocean layer where no light penetrates.

4) the abyssal zone: the pitch-black bottom layer of the ocean; the water here is almost freezing and its pressure is immense.

5) the hadal zone: the waters found in the ocean's deepest trenches.

3 0
4 years ago
If two elements are from the
Vladimir79 [104]

Answer:

The element from Group 13.

Explanation:

Following trends of the periodic table, atomic radius of the elements increase going down from the right side and decrease on its way up diagonally to the left. (sry if u can't understand me)

7 0
3 years ago
Which of these pairs of elements is most likely to be part of a polyatomic ion?
Mrrafil [7]
S and O would be on a polyatomic ion as I know of
3 0
4 years ago
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How do I find the number of electrons in an Isotope? For example, I know that in the image attached the isotope has 45 protons a
vova2212 [387]

Answer:

The answer to your question is: 45 electrons

Explanation:

Isotopes are molecules that have the same number of protons but the number of neutrons is different.

Also, in a neutral atom, the number of protons and electrons is the same.

In the example given, we can see that the atom is neutral so, the number of protons = 45 and the number of electrons = 45.

7 0
3 years ago
What is always true of a strong acid?
sveta [45]

Strong acids provide more H+ in the aqueous solution than the weak acids. This excess amount of H+ conducts more electricity in the solution.

Explanation:

The strong acid provides more H+ ion whereas the weak acids produce less H+ in the aqueous solution resulting in less amount of electricity conduction in the solution.

Weak acid- lesser amount of H+ produced

Strong acid- greater amount of H+ ( proton) produced.

4 0
3 years ago
Read 2 more answers
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