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Nezavi [6.7K]
3 years ago
9

What is the mass of the light bulb and paperclips together?

Chemistry
2 answers:
ch4aika [34]3 years ago
8 0

Answer:

C

Explanation:

Took the test on e2020

loris [4]3 years ago
3 0
<span>251.0 is the correct mass</span>
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If the distance between two objects of the same mass decreased the force of gravity between them would
Anni [7]

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The force of gravity between two objects will decrease as the distance between them increases.

Explanation:

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3 years ago
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When electrolyzing copper (ll) chloride, what reaction takes place at the anode? What reaction takes place at the cathode?
klemol [59]

Answer:

Copper ions are reduced into copper atoms.

Cu²⁺₍aq₎ + 2e⁻ →  Cu₍s₎

Explanation:

During electrolysis,  the positive H⁺ and Cu⁺ ions move to the negative cathode and negative OH⁻ and Cl⁻ ions move to the positive anode.

At cathode, copper ions are preferentially discharged due to the low electromotive force required to discharge them compared to the hydrogen ion. The copper ions gain the two electrons lost by the chloride ions when the are discharged. (2 Cl⁻₍aq₎ → Cl₂₍g₎ + 2e⁻)

Thus the half equation is as follows:

Cu²⁺₍aq₎ + 2e⁻ →  Cu₍s₎

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3 years ago
Describe the flow of blood to the human body, including through each of the four chambers of the heart. Explain how the blood ch
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The blood needs to flow at a great and constant speed. It can not flow very slow because that can be warning's of a heart attack because your blood is using alot of force and its trying to provide as much blood as possible to arrive at the heart in order for your body to live. This is why we should drink water because as we drink water, it helps our blood flow through out our body well and so that we ma not have any problem now and in the future.

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On the enzyme hexokinase, ATP reacts with glucose to produce glucose 6-phosphate and ADP five orders of magnitude faster than AT
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[The rate differential results from induced fit on the enzyme upon binding of glucose. This conformational change excludes water from gaining access to the -phosphate group on ATP, and brings the same group close to the OH group on carbon 6 of glucose]

Explanation:

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How many moles are in 25 grams of Li? How do you know?
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3.6mol Li

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To get the amount of moles from the mass we divide the mass by the molar mass.

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