1. Which of the following metals is oxidized by calcium ions? *potassium zinc iron

QuestionsCategory: Chemistry1. Which of the following metals is oxidized by calcium ions? *potassium zinc iron
Lisa Howell asked 5 months ago
1.
Which of the following metals is oxidized by calcium ions?

*potassium
zinc
iron
lead

2.
The first electrochemical cell was invented by ____.

Michael Faraday
*Alessandro Volta
James Maxwell
Benjamin Franklin

3.
Why can’t a lead storage battery be recharged indefinitely?

A direct current must pass through the cells.
The electrodes lose lead sulfate.
*It is difficult to reverse the direction of current flow.
The electrolyte is too expensive.

4.
Which electrode (anode or cathode) is designated as positive in an electrolytic cell?

anode
*cathode
both
neither

5.
What is the direction of electron flow in an electrolytic cell?

from cathode to anode
*from anode to cathode
in either direction
There is no flow.

6.
What electrolyte can be used to electrolyze water?

hydrochloric acid only
sodium chloride only
sodium hydroxide only
*any electrolyte that is not easily reduced or oxidized

7.
The gas produced at the cathode in the electrolysis of brine is ____.

*hydroxide
chlorines
oxygen
hydrogen

8.
In electroplating, the object to be electroplated is placed _____.

*at the anode
at the cathode
at either the anode or the cathode
in between the anode and the cathode

Thank You.

26 Answers
Lisa Howell answered 5 months ago
I think you have some serious work to do. I disagree with 8,7, 5, 4, & 3.

Lisa Howell answered 5 months ago
you are right I think #3 is B…#4 is A and #5 is A…haven’t done 7 and 8 yet…how am I doing?

Lisa Howell answered 5 months ago
#7 -D
#8 -B…is that better?

Lisa Howell answered 5 months ago
I believe those are ok. I HOPE you were not confused by which of the opposite answer pairs to choose, you guessed, you guessed wrong the first time, and when I pointed them out you just chose the other one. As I say, I HOPE that isn’t happening.

Lisa Howell answered 5 months ago
abbabddb

Lisa Howell answered 5 months ago
THESE ARE MOSTLY WRONG DO NOT USE BIG WRONG ANSWERS ME FAIL TEST :((((((((((((((

Lisa Howell answered 5 months ago
Dang it i failed. Why did you post this? YOUTE NOT HELPING ANYONE

Lisa Howell answered 5 months ago
A
B
B
A
B
D
D
B

Lisa Howell answered 5 months ago
^^ these are all correct, just took the quiz!

Lisa Howell answered 5 months ago
These are correct btw

Lisa Howell answered 5 months ago
unknown answers are correct.

Lisa Howell answered 5 months ago
Unknown is completely correct, i got 100. Thank you!

Lisa Howell answered 5 months ago
I just got a 100! unknown is correct! Thanks man!

Lisa Howell answered 5 months ago
thx ^^

Lisa Howell answered 5 months ago
Unknown is 100% correct! – 2017!!

Lisa Howell answered 5 months ago
thanks to gen and unknown! both were correct!

Lisa Howell answered 5 months ago
When unknown gets all the answers right
*HAND FLIES TWARDS BUTTON LA BED “NUT”*

Lisa Howell answered 5 months ago
unknown 100% correct

Lisa Howell answered 5 months ago
Yes, Anon is correct! Answers good for honors chem electrolytic quiz

Lisa Howell answered 5 months ago
YYYYYYYEEEEEESSSSS. UNKNOWN IS 100. KEEP IT REAL MAN YOU THE GUY. SINCERLY D THE P THE MAN THE FARTSTER DILLLEBERRTOAN FARTASS!

Lisa Howell answered 5 months ago
thanks soo mush got 100%

Lisa Howell answered 5 months ago
1. Which of the following metals is oxidied by calcium ions? – Potassium
2. The first electrochemical cell was invented by ____. – Alessandro Volta
3. Why can’t a lead storage battery be recharged indefinitely? – The electrodes lose lead sulfate.
4. Which electrode (anode or cathode) is designated as positive in an electrolytic cell? – anod
5. What is the direction of electron flow in an electrolytic cell? – from anode to cathod
6. What electrolyte can be used to electrolyze water? – any electrolyte that is not easily reduced or oxidize
7. The gas produced at the cathode in the electrolysis of brine is ____. – hydroge
8. . In electroplating, the object to be electroplated is placed _____. – at the catho
100% right

Lisa Howell answered 5 months ago
Unknown thank u!

Lisa Howell answered 5 months ago
A
B
B
A
B
D
D
B
Still correct for 2019 🙂

Lisa Howell answered 5 months ago
Chemistry is so frustrating. Those answers are correct thank youuuu! – Apr. 2019

Lisa Howell answered 5 months ago
A
B
B
A
B
D
D
B

All correct, connexus Chemistry B 2019

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