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Alborosie
3 years ago
13

All the nonmetals have some similar physical properties. True False

Chemistry
2 answers:
Dafna11 [192]3 years ago
8 0
<span>All the nonmetals have some similar physical properties is false because
</span><span>all non metals within the same group have similar properties.</span>
OLEGan [10]3 years ago
5 0
TRUE.

Nonmetals have some similar physical properties.

En general:

- They are either gases or brittle solids.
-  They are opaque
- They are poor conductors of heat and electricity.
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Definition of volume
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The amount of space an object occupies.

Explanation:

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Along with subduction, what other process changes sedimentary rocks to metamorphic rocks?
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2.
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b. 6.02 x 1023 molecules

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Name the organic compound of ch2=chch2ch3
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Iron reacts slowly with oxygen and water to form a compound commonly called rust (Fe₂O₃?4H₂O). For 45.2 kg of rust, calculate
Mashcka [7]

Rust (Fe2O3. 4H2O) is formed when iron interacts slowly with oxygen and water. Mass of Fe in grams is 2.18 x 10⁴ g.

<h3>What is the explanation?</h3>

There are 2 moles of Fe atoms in 1 mole of Fe2O3-4H2O. The number of moles of Fe atoms in 45.2 kg rust is shown below.

Moles of Fe = 195.01 mol Fe₂O₃.4H₂O ( \frac{2 mol Fe }{1 mol Fe₂O₃.4H₂O} )

Moles of Fe = 390.02 mol Fe

Multiply the calculated number of moles of iron, Fe, by its molar mass which is 55.85 \frac{g}{mol}

Mass of Fe = 390.02 mol Fe ( \frac{55.85 g Fe}{mol Fe} )

Mass of Fe = 2.18 x 10⁴ g Fe

Avogadro's number (6.022 x 1023) of molecules (or formula units) make up one mole of a substance (ionic compound). The mass of 1 mole of a chemical is indicated by its molar mass. It provides you with the amount of grams per mole of a substance, to put it another way.

To learn more about moles visit:

brainly.com/question/26416088

#SPJ4

4 0
2 years ago
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