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3 years ago

A negatively charged balloon comes close to a positively charged cloth. What will happen?

Chemistry

2 answers:

Bas_tet [7]3 years ago

8 0

Answer:

B. The balloon will be attracted to the cloth.

Explanation:

Positive and negative attract so if you bring the balloon near the fibers, they move toward the balloon.

have a great day!

Elena L [17]3 years ago

7 0

The balloon will attract the cloth I think. Opposites attract so

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You have 16.0 g of some compound and you perform an experiment to remove all of the oxygen, 11.2 g of iron is left. What is the

Makovka662 [10]

The empirical formula of this compound is $Fe_2O_3$

<h3>Empirical formula </h3>

To calculate the empirical formula of a compound, the value of moles of each element is needed.

As we have the information of the mass value, we will use the molar mass expression, which corresponds to:

$MM_O = 16g/mol\\MM_Fe = 55.8g/mol$

$MM = \frac{m}{mol}$

$16 = \frac{4.8}{x}$

$x = 0.3mol$

$55.8=\frac{11.2}{x}\\x = 0.2$

As the value of the empirical formula must be an integer, simply multiply the two values by a common factor:

$O = 0.3 \times 10 = 3\\Fe = 0.2 \times 10 = 2$

$Fe_2O_3$

So, the empirical formula of this compound is $Fe_2O_3$ .

Learn more about empirical formula: brainly.com/question/1247523

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2 years ago

What is 1 mol / 66.04g

____ [38]

Answer:

15.142338 mol/kg

Explanation:

(1 mole) / (66.04 grams)

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3 years ago

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dedylja [7]

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valentinak56 [21]

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zmey [24]

Answer:

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(hope this helps)!

Explanation:

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