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3 years ago

What happens where Earth's plates meet?

Chemistry

1 answer:

anzhelika [568]3 years ago

4 0

Answer:

an earthquake

Explanation:

the tectonic plates rub together sending shockwaves

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zhuklara [117]

Answer: the answer is D heat and pressure

Explanation: I just took the test.

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3 years ago

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Korolek [52]

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Explanation:

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2 years ago

What type of Machine is a handrail

Elodia [21]

Hey There!

Here is your answer:

The answer is a compound machine!

Hope this helps!

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2 years ago

In the following overall chemical reaction, aluminum displaces chromium from chromium(III) oxide and forms aluminum oxide.

mafiozo [28]

Answer:

Change in enthalpy for the reaction is -536 kJ

Explanation:

Overall chemical reaction can be represented a summation of two given elementary steps with slight modification.
Take reaction (1a) and divide stoichiometric coefficients by 2
Take reverse reaction (2a) and divide stoichiometric coefficient by 2
Then add these two modified elementary steps to get overall chemical reaction
$\Delta H$ is an additive property. hence value of $\Delta H$ will be changed in accordance with modification

$2Al+\frac{3}{2}O_{2}\rightarrow Al_{2}O_{3}.....\Delta H_{1}=\frac{-3351.4}{2}kJ=-1675.7kJ$

$Cr_{2}O_{3}\rightarrow 2Cr+\frac{3}{2}O_{2}....\Delta H_{2}=\frac{2279.4}{2}kJ=1139.7kJ$

--------------------------------------------------------------------------------------------------------------

$2Al+Cr_{2}O_{3}\rightarrow 2Cr+Al_{2}O_{3}....\Delta H=\Delta H_{1}+\Delta H_{2}=-1675.7+1139.7kJ=-536kJ$

6 0

3 years ago

Where is a divergent boundary most likely to be found?

nexus9112 [7]

Answer:

Explanation

Bc I took the test, good luck with that guys

7 0

2 years ago