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Studentka2010 [4]
3 years ago
5

What do heaghogs eat?

Biology
2 answers:
Ugo [173]3 years ago
5 0

Answer:

Berries and bugs

Explanation:

Bad White [126]3 years ago
3 0

Answer:

they eat hot dogs

Explanation:

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How is enthalpy used to predict whether a reaction is endothermic or exothermic?
Radda [10]

<u>Answer:</u>

<em>329.48 KJ/mol heat is released by the combustion of 2 molof methane</em>

<u>Explanation:</u>

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)

\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]

                            =2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]

                            = -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]

                           = -787 KJ/mol+1116.48 KJ/mol

                                          =329.48 KJ/mol

<em>In this question, </em><em>the enthalpy of formation</em><em> has positive value and hence the </em><em>reaction is endothermic</em><em> in which the heat is released. </em>

3 0
3 years ago
what canyon exists where an ancient river once flowed. briefly discuss how the hydrosphere and atmosphere have carved this canyo
masha68 [24]
The Grand Canyon is a Canyon that exist where an ancient river once flowed. The hydrosphere (all of water on earths surface.) Slowly eroded away at the rock of the grand canyon until a Canyon was formed this water evaporated into the atmosphere then percerpertated back down creating a cycle that ended with the formation of the grand canyon.
7 0
3 years ago
List two pro and cons of genetic engineering
eimsori [14]
Pros: Might someday cure disease, might someday increase crop yeild, might create things that can be of our use. 

Cons: Genetic engineering could cause food allergies, have bad side affects, it could kill animals over time. 

I hope this helps. 
3 0
3 years ago
What does it mean that a gene exhibits codominance?
alukav5142 [94]
Essentially traits of both genes will be shown. Take heterochromia for example, where a person has a green eye and a blue eye, both have some part in developing a trait.
8 0
3 years ago
Read 2 more answers
Cholesterol is repelled by water and can be found between the layers of the phospholipids in the plasma membrane. What can be co
Zarrin [17]

Answer:

The correct answer is cholesterol is nonpolar.

Explanation:

Cholesterol is a complex lipid is synthesized from acetyl CoA.cholesterol is an important constituent of plasma membrane.

     Cholesterol is non polar in nature.As a result cholesterol is repelled by water and can be found between the layers of the phospholipid in the plasma membrane.

   As cholesterol is non polar it is also hydrophobic in nature.

8 0
3 years ago
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