Back to School Week - Thursday: Chemistry! - Page 5 - Jesters&Heralds

Back to School Week - Thursday: Chemistry!

Dear visitor, welcome to Legend: Legacy of the Dragons Forum. If this is your first visit here, please read the Help. It explains in detail how this page works. To use all features of this page, you should consider registering. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.

zAquisgran [11]

Professional

Posts: 866

Location: Möhnesee

Friday, September 11th 2020, 3:33pm

Quoted from "Atrocitus"

How many % alcohol should a liquid contain in order to have a disinfectant feature?

Hmm, seems like depends on which you wann kill with it, as on german pages it sais 62%,
on english it sais "The Centers For Disease Control (CDC) recommend alcohol at a concentration of 50%-70%"

Go to the top of the page

Atrocitus [5]

Intermediate

Posts: 577

Friday, September 11th 2020, 3:38pm

Quoted from "zAquisgran"

Quoted from "Atrocitus"

How many % alcohol should a liquid contain in order to have a disinfectant feature?

Hmm, seems like depends on which you wann kill with it, as on german pages it sais 62%,
on english it sais "The Centers For Disease Control (CDC) recommend alcohol at a concentration of 50%-70%"

Yes i forgot asking for covid xd it was %70
So your answer is correct

Go to the top of the page

Baltazar_Blake [15]

Intermediate

Posts: 204

Friday, September 11th 2020, 3:46pm

what is the atomic number of phosphorus?

Go to the top of the page

zAquisgran [11]

Professional

Posts: 866

Location: Möhnesee

Friday, September 11th 2020, 3:49pm

Quoted from "Baltazar_Blake"

atomic number of phosphorus

Symbol "P"
Number 15

Go to the top of the page

Baltazar_Blake [15]

Intermediate

Posts: 204

Friday, September 11th 2020, 3:57pm

Quoted from "zAquisgran"

Quoted from "Baltazar_Blake"

atomic number of phosphorus

Symbol "P"
Number 15

Is correct.

Go to the top of the page

VerginaSun [9]

Trainee

Posts: 95

Friday, September 11th 2020, 4:05pm

A volume of 500 mL is equivalent to

a. 5 L
b. 50 L
c. 0.5 dL
d. 0.5 L
e. 500 dL

Go to the top of the page

Atrocitus [5]

Intermediate

Posts: 577

Friday, September 11th 2020, 4:09pm

d. 0.5 L

Go to the top of the page

VerginaSun [9]

Trainee

Posts: 95

Friday, September 11th 2020, 4:11pm

Quoted from "Atrocitus"

d. 0.5 L

Correct

Go to the top of the page

Anneymid [14]

Trainee

Posts: 81

Friday, September 11th 2020, 4:15pm

What is electron configuration for copper without using noble gases?

Go to the top of the page

Baltazar_Blake [15]

Intermediate

Posts: 204

Friday, September 11th 2020, 4:39pm

Quoted from "Anneymid"

What is electron configuration for copper without using noble gases?

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^1

Go to the top of the page

Baltazar_Blake [15]

Intermediate

Posts: 204

Friday, September 11th 2020, 4:45pm

What is the electron configuration of phosphorus without using noble gases?

Go to the top of the page

Baltazar_Blake [15]

Intermediate

Posts: 204

Friday, September 11th 2020, 4:45pm

Quoted from "Baltazar_Blake"

Quoted from "Anneymid"

What is electron configuration for copper without using noble gases?

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^1

Good question

i am remember :angel:

Go to the top of the page

Atrocitus [5]

Intermediate

Posts: 577

Friday, September 11th 2020, 4:46pm

Quoted from "Baltazar_Blake"

Quoted from "Anneymid"

Quoted from "Anneymid"

What is electron configuration for copper without using noble gases?

Invalid question..

Quoted from "Baltazar_Blake"

Quoted from "Anneymid"

What is electron configuration for copper without using noble gases?

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^1

A magmar may answer a human question xd

Go to the top of the page

Baltazar_Blake [15]

Intermediate

Posts: 204

Friday, September 11th 2020, 4:47pm

Quoted from "Atrocitus"

Quoted from "Baltazar_Blake"

Quoted from "Anneymid"

Quoted from "Anneymid"

What is electron configuration for copper without using noble gases?

Invalid question..

Quoted from "Baltazar_Blake"

Quoted from "Anneymid"

What is electron configuration for copper without using noble gases?

1s^2 2s^2 2p^6 3s^2 3p^6 3d^10 4s^1

A magmar may answer a human question xd

i think is magmar...sorry sorry

Go to the top of the page

Atrocitus [5]

Intermediate

Posts: 577

Friday, September 11th 2020, 5:15pm

which compound using for turn glass into mirror

Go to the top of the page

zAquisgran [11]

Professional

Posts: 866

Location: Möhnesee

Friday, September 11th 2020, 5:15pm

Quoted from "Baltazar_Blake"

What is the electron configuration of phosphorus without using noble gases?

[Ne] 3s2 3p3

take NE out

=3s2 3p3

Go to the top of the page

Atrocitus [5]

Intermediate

Posts: 577

Friday, September 11th 2020, 5:18pm

Quoted from "zAquisgran"

Quoted from "Baltazar_Blake"

What is the electron configuration of phosphorus without using noble gases?

[Ne] 3s2 3p3

take NE out

=3s2 3p3

Ne has own electron configuration and he asking for Ne conf + 3s2 3p3 xd

Go to the top of the page

Atrocitus [5]

Intermediate

Posts: 577

Friday, September 11th 2020, 5:18pm

Quoted from "zAquisgran"

How many elements start with "V" like VerginaSun?

Didnt see my question :grr:

Go to the top of the page

Baltazar_Blake [15]

Intermediate

Posts: 204

Friday, September 11th 2020, 5:24pm

Quoted from "zAquisgran"

Quoted from "Baltazar_Blake"

What is the electron configuration of phosphorus without using noble gases?

[Ne] 3s2 3p3

take NE out

=3s2 3p3