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tiny-mole [99]
3 years ago
8

Which of the following would be the best object for stirring hot liquids? (1 point)

Chemistry
2 answers:
Slav-nsk [51]3 years ago
8 0
A steel spoon or copper
netineya [11]3 years ago
7 0
A steel spoon would be the best I believe.
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The enthalpy of combustion of naphthalene (MW = 128.17 g/mol) is -5139.6 kJ/mol. How much energy is produced by burning 0.8210 g
bazaltina [42]

The energy produced by burning : -32.92 kJ

<h3>Further explanation</h3>

Delta H reaction (ΔH) is the amount of heat change between the system and its environment

(ΔH) can be positive (endothermic = requires heat) or negative (exothermic = releasing heat)

The enthalpy and heat(energy) can be formulated :

\tt \Delta H=\dfrac{Q}{n}\rightarrow n=mol

The enthalpy of combustion of naphthalene (MW = 128.17 g/mol) is -5139.6 kJ/mol.

The energy released for 0.8210 g of naphthalene :

\tt Q=\Delta H\times n\\\\Q=-5139.6~kJ/mol\times \dfrac{0.8210~g}{128.17~g/mol}~\\\\Q=-32.92~kJ

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2 years ago
The correct name for HIO2?
valentinak56 [21]

Answer:

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Explanation:

iodous acid would also be known as HIO2

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Pepsi [2]
Do you have the picture of the data?
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Volcanoes are most closely related to which type
sergeinik [125]

Answer:

Hey mate.....

Explanation:

This is ur answer.....

<em>Volcanoes are closely associated with plate tectonic activity. Most volcanoes, such as those of Japan and Iceland, occur on the margins of the enormous solid rocky plates that make up Earth's </em><em>surface.</em>

Hope it helps!

Brainliest pls....

Follow me! ;)

4 0
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How many grams of O2(g) are needed to completely burn 15.6 g of C3H8(g)?
alexdok [17]
15.6gC3H8*44.1gC3H8*32gO2=11.32
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