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3 years ago

9

How a neutral object is different from a negatively charged object.

1 answer:

Naddik [55]3 years ago

3 0

Answer:

Charged objects have an imbalance of charge - either more negative electrons than positive protons or vice versa. And neutral objects have a balance of charge - equal numbers of protons and electrons. ... Their presence (or absence) will have no direct bearing upon whether an object is charged or uncharged.

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When 150. g zinc sulfide are burned in excess oxygen, 68.5 g of zinc oxide are actually produced, along with sulfur dioxide. Det

Bumek [7]

%yield = 54.6%

<h3>Further explanation</h3>

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

(theoretical)

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

<h3 />

Reaction

2ZnS+3O₂ ⇒ 2ZnO+2SO₂

MW ZnS = 97.474 g/mol

mol ZnS

$\tt \dfrac{150}{97.474}=1.54$

MW ZnO = 81.38 g/mol

mol ZnO (from mol ZnS as limiting reactant, O₂ excess)

$\tt \dfrac{2}{2}\times 1.54=1.54$

Actual ZnO produced

$\tt 1.54\times 81.38=125.33~g$

Theoretical production = 125.388

%yield

$\tt \dfrac{68.5}{125.33}\times 100\%=\boxed{\bold{54.6\%}}$

4 0

3 years ago

You gained two pounds while on vacation. Which of the following has changed?

Elenna [48]

I believe it is d. physical shape n particle amount (amount of particle increase if u gain weight right?), weight directly proportional to mass..

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4 years ago

Read 2 more answers

What might a physicit choose to study?

AlekseyPX

Thermodynamics, Nuclear Physics, Quantum Physics, Astronomy and Astrophysics

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4 years ago

WHAT ARE MONOSACCHARIDE

Sever21 [200]

Answer:

Explanation:

Monosaccharides, also called simple sugar, are the simplest form of sugar and the most basic units of carbohydrates.

I do hope I helped you! :)

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3 years ago

What is the [OH-] in a solution that has a [H3O+] = 1.0 x 10-6 M?

nika2105 [10]

Answer:

explanation

$kw = 1 \times {10}^{ - 14}$

$oh = {?}$

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formula

$kw = h3o \times oh$

$insert \: values$

$1.0 \times 10 {}^{ - 14} = 1.0 \times {10}^{ - 6} \times oh$

$\frac{1.0 \times 10 {}^{ - 14} }{ 1.0 \times 10 {}^{ - 6} } = oh$

$1 \times {10}^{ - 8}$

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3 years ago