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vitfil [10]
3 years ago
15

Which substance will require more energy to heat if all the samples have the same mass and same temperature change?

Chemistry
1 answer:
Art [367]3 years ago
7 0
If mass and the temperature change is not a factor then we can take a look at the chemical bonds in the substance. Chemical bonds can also dictate how hard a sample can be heated or to break the bonds in it.Two of the strongest bonds are the ionic and covalent bond. The strongest of the two is the ionic.
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What else should you listen for as a speaker gives a speech?
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Answer:

561 g P₂O₃

Explanation:

To find the mass of P₂O₃, you need to (1) convert moles H₃PO₃ to moles P₂O₃ (via mole-to-mole ratio from equation coefficients) and then (2) convert moles P₂O₃ to grams P₂O₃ (via molar mass). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the amount of sig figs in the given value.

Atomic Mass (P): 30.974 g/mol

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Molar Mass (P₂O₃): 2(30.974 g/mol) + 3(15.998 g/mol)

Molar Mass (P₂O₃): 109.942 g/mol

1 P₂O₃ + 3 H₂O -----> 2 H₃PO₃

10.2 moles H₃PO₃            1 mole P₂O₃              109.942 g
----------------------------  x  --------------------------  x  -------------------  =  561 g P₂O₃
                                        2 moles H₃PO₃              1 mole

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5 0
3 years ago
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Blababa [14]

Answer:

Strike slip forms at transform boundaries

4 0
2 years ago
Read 2 more answers
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