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Anastaziya [24]
3 years ago
6

PLZ HELP! WILL GIVE BRAINLIEST, 5 STARS, AND A THANKS!!

Chemistry
1 answer:
nika2105 [10]3 years ago
8 0

Answer:

The similarities between freezing, and condensation is, the stimulis.

Explanation:

The explanation to that is because the condensation will melt.

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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>

4 0
3 years ago
PLEASE HELP MEEEEEEEEEEEEEEEEE
RSB [31]
The answer is the second choice.
5 0
3 years ago
Read 2 more answers
What are the two types of collisions? What is the difference between them? Types: a. Types: b. Compare and contrast the two type
mr_godi [17]

Answer:

The two types of collisions are :

Type a)

<u>Elastic collision</u>

Type b)

<u>Inelastic collision</u>

Explanation:

Collision : It is the event when two bodies collide with each other for small period of time.

During collision , the bodies exert force to each other.

Example :

When boxer hits with punches .

When bat hits the ball in cricket match.

So, collision is short duration interaction of two objects. When the objects collides , there is  change in their velocity.

All collision follow law of conservation of momentum . Their type is decided by , whether they follow conservation of energy also.

<u>Compare and contrast the two types</u>

a) Elastic collision : Those collision in which no loss or gain of kinetic energy will occur. They follow conservation of kinetic energy. Example : ideal gaseous molecule

b) Inelastic collision : Those collision in which Change in kinetic energy will occur. They do not follow conservation of kinetic energy.Almost all conservation are inelastic.

Here Kinetic energy get converted into other form of energy.

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3 years ago
After many generations, which trait will be most common? Why?
allsm [11]

It would be sadness because people have been going thru alot of things over the years

6 0
3 years ago
Thsof<br> is which acid H2S04
Crank

Explanation:

H2So4=sulphuric acid , strong acid

6 0
1 year ago
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