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adell [148]
3 years ago
11

Which is the best explanation of why heat is released when

Chemistry
1 answer:
vazorg [7]3 years ago
6 0
The answers is A. Reales energy stored in chemical bonds
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100 points will to help
FromTheMoon [43]

Answer:

6. 350kg

7. 800kg

8.600 meters

Explanation: I don’t like Stealing point but this is what I think I should give you and I don’t know how your teacher learn you this...

8 0
2 years ago
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Which of the following is the best definition of Hess' Law?
NeTakaya
Hess' Law can best be described as A. <span>Heat evolved in a given process can be expressed as the sum of the heats of several processes that, when added, yield the process of interest. </span>
7 0
3 years ago
What causes earthquakes? Be sure to use the words: Core Mantle Conduction Convection Density
IrinaVladis [17]

Answer:

Explanation:

Earthquakes are normally caused by underground rock breaking along a fault line. The seismic waves that cause the earth to shake are caused by this sudden release of energy. The plates or blocks of rock begin to move during and after the earthquake, and they continue to move until they become trapped again. As fluid near the center heats up, convection currents develop within the Earth's mantle. Particles pass more quickly as the core heats the bottom layer of mantle material, lowering its density and allowing it to rise. The convection current is started by the growing material.

8 0
3 years ago
How many molecules are in 4 moles of carbon monoxide (CO)?
ladessa [460]

Answer:

A

Explanation:

because number of particle = moles × 6.02 × 10^23

which gives the answer as an A

8 0
3 years ago
A pure substance that is present before a reaction but not after <br> Super Confused
never [62]

Explanation:

Pure subsance is a substance that is made up of only one type of particle - each piece is the same throughout.

Being present before the reaction but not after means it's no the same (it couldve evaporated)

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