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creativ13 [48]
3 years ago
7

The image shows two spheres hung from a thin rope. The spheres do not affect each other.

Chemistry
1 answer:
jekas [21]3 years ago
8 0

Answer:

both spheres have a positive charge

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Iron (III) oxide pentahydrate formula
Nina [5.8K]

Answer:

Molecular Formula Fe2O12S3·5H2O

IUPAC Name iron(3+);tri sulfate;pentahydrate

Explanation:

4 0
3 years ago
PLEASEEE HELP !!! How many moles of H2O are equivalent to 97.3 grams of H2O? <br><br> ___? = mol
Aleks04 [339]

no. of moles=mass/molar mass

                    =97.3/18

                    =<u>5.40555555556 moles</u>

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Which of the following uses a nonrenewable energy resource to generate energy? A. nuclear power plant B. wind farm C. fireplace
Alisiya [41]
A & C.
much debated nuclear power plants uses nuclear fission power stations, with uranium-235 as the source if fission. It is "non-renewable" according to the Energy Information Administration.

burning wood is also a non-renewable energy source
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There are many ways that you can tell whether a chemical change has occurred. Which of the following is NOT a sign of chemical c
Vesnalui [34]

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Explanation:

because it just using heat.

7 0
3 years ago
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How many grams of aluminum metal can be produced when 50.0 grams of aluminum chloride decompose? 2AlCl3 → 2Al + 3Cl2
Arisa [49]

Answer:

10.1 g of Al are formed

Explanation:

The reaction is:

2AlCl3 --> 2Al + 3Cl2

So 2 moles of aluminun chloride decompose into 2 moles of Al and 3 moles of chlorine.

Ratio is 2:2.

Let's convert the mass of salt into moles (mass / molar mass)

50 g / 133.34 g/mol = 0.374 moles.

As the ratio is 2: 2, if I have 0.374 moles of salt, I would produce the same amount of Al, just 0.374.

Let's convert the moles to mass

(Mol . molar mass)

0.374 mol . 26.98 g / mol = 10.1 g of Al are formed

Ξ

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3 years ago
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