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3 years ago

Word Bank: Match each term with the sentence below

Chemistry

1 answer:

Ymorist [56]3 years ago

3 0

Answer:

Electromagnetic Wave Medium Matter:The ability to move or change an object, or what a wave

Longitudinal Wave Trough Rarefaction: The area in a longitudinal wave where the particles are close together.

Transverse Wave Energy Wavelength: The highest point of a transverse wave

Explanation:

give me brainliest

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Which of the following shows a chemical reaction in which hydrogen sulfide and oxygen are the reactants and sulfur and water are

Volgvan

Answer:

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Explanation:

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3 years ago

Most earthquakes occur along fractures in the Earth's crust called faults. Most faults occur along the edges of A) continents. B

Ahat [919]

Hey there!

The answer is C. Tectonic plates, with the most famous of earthquakes being a plate called the "Ring of Fire"

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4 years ago

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__Mg + __Fe2O3 -> __MgO + __Fe

Anika [276]

Answer:

Your correct answer is A. 1,2,1,2

Explanation:

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3 years ago

a 1.25g sample of ore containing iron pyrite (FeS2) was pulverized and ignited in air, converting the FeS2 to Fe2O3 and SO2(g).

svp [43]

Answer:

28.9%

Explanation:

Let's consider the following balanced equation.

2 FeS₂ + 11/2 O₂ ⇒ Fe₂O₃ + 4 SO₂

We can establish the following relations:

The molar mass of Fe₂O₃ is 159.6 g/mol
1 mole of Fe₂O₃ is produced per 2 moles of FeS₂
1 mole of Fe is in 1 mole of FeS₂
The molar mass of Fe is 55.84 g/mol

The amount of Fe in the sample that produced 0.516 g of Fe₂O₃ is:

$0.516gFe_{2}O_{3}.\frac{1molFe_{2}O_{3}}{159.6gFe_{2}O_{3}} .\frac{2molFeS_{2}}{1molFe_{2}O_{3}} .\frac{1molFe}{1molFeS_{2}} .\frac{55.84gFe}{1molFe} =0.361gFe$

The percent of Fe in 1.25 g of the ore is:

$\frac{0.361g}{1.25g} .100\%=28.9\%$

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3 years ago

What is an substance

lora16 [44]

<span>a particular kind of matter with uniform properties.

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3 years ago

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