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ruslelena [56]
3 years ago
14

What is an easy science subject to write an 8 page essay on?

Chemistry
2 answers:
WINSTONCH [101]3 years ago
8 0
Calculating speed or atoms and molecules or planets!




Hope i helped plz mark as brainlist!
VladimirAG [237]3 years ago
8 0
Here is my opinion:

You should write about the body systems theirs many facts and things you can learn and it is also science.
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What is the scientific term for rocks made in lava?
Elden [556K]

The answer is d. extrusive.


The other term for it is <em>igneous rock</em>. Igneous rock is made in lava, and another term for igneous rock is extrusive rock.


have a great day! Brainliest is greatly appreciated, and please let me know if you need help with anything else ;)

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3 years ago
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If the reactants have a potential energy of 10.2 kJ/mol and the products have a potential
Citrus2011 [14]

Answer:

The ΔH is 5.5 kJ/mol and the reaction is endothermic.

Explanation:

To calculate the ∆H (heat of reaction) of the combustion reaction, that is, the heat that accompanies the entire reaction, you must make the total sum of all the heats of the products and of the reagents affected by their stoichiometric coefficient ( number of molecules of each compound participating in the reaction) and finally subtract them:

Combustion enthalpy = ΔH = ∑H products - ∑Hreactants

In this case:

ΔH = 15.7 kJ/mol - 10.2 kJ/mol= 5.5 kJ/mol

An endothermic reaction is one whose enthalpy value is positive, that is, the system absorbs heat from the environment (ΔH> 0).

<u><em>The ΔH is 5.5 kJ/mol and the reaction is endothermic.</em></u>

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3 years ago
What is the total number of atoms contained in 80 grams of neon?
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Which of the following is an acid?<br><br> Be(OH)2<br> HCl<br> LiBr<br> NH3
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Answer:

HCl is the correct answer

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