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2 years ago

0.75 mol hydrogen sulfide (H2S)

Chemistry

2 answers:

Natali5045456 [20]2 years ago

5 0

Answer: =378.94000053g

Explanation:

I think that explains it

Bumek [7]2 years ago

4 0

Answer:

• Information and media literacy

Directions

Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write

brief evaluation of your work.

Activity

Part A

Now that you have analyzed the resources provided in the lesson, write your own response to the question, What is the main reason the US Civil

War started? Base your

Explanation:

• Information and media literacy

Directions

Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write

brief evaluation of your work.

Activity

Part A

Now that you have analyzed the resources provided in the lesson, write your own response to the question, What is the main reason the US Civil

War started? Base your

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How to calculate magnitude of k

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Use Arrhenius equation:
k = A*exp(-Ea/RT)
We have:
1.35x10^2/s = A*exp(-85600/(8.314*298.15))
or: A = 1.342x10^17/s
It is a piece of cake to calculate:
k = 1.342x10^17*exp(-85600/(8.314*348.15))
= 1.92x10^4/s

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3 years ago

Which of the following is a substance that is found between the cell membrane and the nuclear us which primarily consist of wate

Kazeer [188]

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3 years ago

My made-up polyatomic ion goldate acts a lot like chlorate (it has the same charge and the same number of oxygens). What would t

Keith_Richards [23]

Answer:

d. Pergoldic acid

Explanation:

chlorate = ClO₃⁻

Goldate GoO₃⁻

On this basis we can infer that HClO₄ and HGoO₄ will be similar .

HClO₄ is called perchloric acid , hence HGoO₄ will be called pergoldic acid.

8 0

3 years ago

URGENT HELP PLEASE balance equation !20 points!

yKpoI14uk [10]

Au^2S^3+ 3H^2 = 2Au + 3H^2S

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3 years ago

A 5.00-cm cube of magnesium has a mass of 217.501 g. What is the density of magnesiummetal?

Doss [256]

Answer:

d = 43.5 g/cm³

Explanation:

Given data:

Mass of magnesium cube = 217.501 g

Volume of magnesium cube = 5.00 cm³

Density of magnesium cube = ?

Solution:

Formula:

d = m/v

d = density

m = mass

v = volume

by putting values,

d = 217.501 g/ 5.00 cm³

d = 43.5 g/cm³

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3 years ago