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VashaNatasha [74]
3 years ago
5

DONT COMMENT ANY LINKS OR DONT COMMENT IF YOU DONT KNOW THE ANSWER.

Chemistry
2 answers:
Vsevolod [243]3 years ago
3 0

Answer:

the first one is protons and electrons the second one is protons the third one is neutrons and the forth one is also neutron

Tom [10]3 years ago
3 0
1. protons and electrons 2. protons 3. neutrons 4. neutrons
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An electrolytic cell is set up to plate Zr(s) from a solution containing Zr4 (aq). A current of 7.92 amps is run through this so
iren [92.7K]

The mass of Zr deposited in the process is 41.4 g.

<h3>What is electrolytic cell?</h3>

An electrolytic cell is a chemical cell which produces electrical energy by non-spontaneous chemical processes.

From the question;

Zr^4+(aq) + 4e ------> Zr(s)

We know that;

91 g of Zr is deposited by 4(96500) C

xg of Zr is deposited by (7.92 × 6.16 × 60 × 60) C

xg = 91 g ×  (7.92 × 6.16 × 60 × 60) C/4(96500) C

x g = 41.4 g

Learn more about electrolysis: brainly.com/question/12054569

8 0
2 years ago
suppose a student poured equal volumes of water and naoh in two different flasks. he forgets to label his flasks and is confused
ArbitrLikvidat [17]

The one with higher temperature is the one with NaOH as heatis given off during the neutralization reaction that occurs.

<h3>What is volume?</h3>

Volume can be defined as the amount of space a substance or an objects occupies usually in a closed container.

Volume is measures in litres.

When water is added to dilute acid like HCl, they become more dilute.

When NaOH is added to HCl, a neutralization reaction occurs.

The student will determine the contents of the flasks by adding 10 ml of hcl to each flask. If the NaOH reacts with the Hcl, there will be an increase in temperature.

The increase in temperature is due to the heat of neutralization of the reaction between NaOH and HCl.

Learn more about volume at: brainly.com/question/1972490

#SPJ1

5 0
1 year ago
The following reaction is a _______ reaction.
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Compound reaction :)
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A valid lewis structure of ________ cannot be drawn without violating the octet rule.
luda_lava [24]
A valid lewis structure of SO2 cannot be drawn without violating the octet rule.



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Mount St. Helens is a volcano that erupted with great force in 1980. Which phrase best describes this eruption?
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Answer:The best phrase which supports the eruption would be high-viscosity magma lava broken into fragments.

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3 years ago
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