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3 years ago

The magnitude of an earthquake is its:

Chemistry

1 answer:

Umnica [9.8K]3 years ago

7 0

Answer:

25 size or length.

<h2>26 P wave (primary wave)</h2><h2>27 P wave</h2><h2>28 Surface waves</h2><h2>29 Body waves</h2><h2>30 Epicentre </h2><h2>31 Epicentre </h2><h2>32 Oxidation</h2><h2>33 Mineral Fragments </h2><h2>34 C.</h2><h2>35 C.</h2><h2>36 Transpiration.</h2><h2>37 . infiltration </h2><h2>38. 0.3</h2><h2>39.C</h2><h2>40.D.</h2><h2>41.D.</h2><h2>42.B.</h2><h2>4 3 . weathering </h2>

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Which dinosaur was able to hold its prey in its mouth firmly due to teeth that curved backward?

nikitadnepr [17]

<span>Deinonychus due to its backwards teeth</span>

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3 years ago

Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values: PCl5(g) → PCl3(g) + Cl2(g)

nalin [4]

Answer:

The value of $\Delta H$ for the desired reaction will be 249.75 KJ.

Explanation:

The desired reaction is shown below

$\textrm{PCl}_{5}\left ( g \right )\rightarrow \textrm{PCl}_{3}\left ( g \right )+\textrm{Cl}_{2}\left ( g \right )$

The desired reaction can be obtained by adding the given reactions and then dividing both sides by 4.

$P_{4}\left ( s \right )+6Cl_{2}\left ( g \right )\rightarrow 4PCl_{3}\left ( g \right ) \\4PCl_{5}\left ( g \right )\rightarrow P_{4}\left ( s \right )+10Cl_{2}\left ( g \right )$

Net Enthalpy change for the desired reaction

$\displaystyle \frac{3438-2439}{4} \textrm{ KJ} = 249.75 \textrm{ KJ}$

$\Delta H = 249.75 \textrm{ KJ}$

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4 years ago

Horticulturists know that, for many plants, dark green leaves are associated with low light levels and pale green with high leve

nikitadnepr [17]

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<h3>What is photon theory?</h3>

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2 years ago

Which statement correctly contrasts a covalent bond and an ionic bond?

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Answer:

Explanation:

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4 years ago

What does the state symbol aq mean when written after a chemical compound in a chemical equation?

igomit [66]

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3 years ago