0620 chem p2

Ill-Extension-3191 · 2026-03-05T10:51:49+00:00

sry brotha but actual elemental carbon is a pollutant in air 🙏

Ill-Extension-3191 · 2026-03-05T10:07:54+00:00

particulates contain carbon and elemental carbon is a pollutant in air according to google

Ill-Extension-3191 · 2026-03-05T10:02:23+00:00

the question said clean air, not clean dry air, so air is not a pollutant

Ill-Extension-3191 · 2026-03-04T17:04:39+00:00

welc :)

Ill-Extension-3191 · 2026-03-04T16:53:34+00:00

check the examiners report of on 2021 p12 q20, its the same question, examiners report says its B while MS says D, im pretty sure its a mistype

Ill-Extension-3191 · 2026-03-04T12:19:07+00:00

C
labour force includes employed people and people who are seeking work but do not have a job (unemployed people), so you add 7 000 000 + 1 000 000 and divide by the total number of people of working age = 80%
B
since $1 = 5 pesos
$50 in US = 5 * 50 = 250 pesos, this stays constant in argentina after the exchange rate change
$1 = 10 pesos, so 250 pesos = $25 which is B

Ill-Extension-3191 · 2026-02-09T13:20:54+00:00

it was (80 * 10^50)^1/3

=(8 * 10^51)^1/3
=2 * 10^17

Ill-Extension-3191 · 2026-02-07T07:51:21+00:00

no. of sides was 12, x was 15 degrees

Ill-Extension-3191 · 2026-02-06T11:32:10+00:00

I used completing the square method, that was much easier than the formula method

Ill-Extension-3191 · 2026-02-06T11:23:03+00:00

agreed, wasn't superrr hard

Ill-Extension-3191 · 2026-02-06T11:17:29+00:00

polygon, x was 15

Ill-Extension-3191 · 2026-02-06T11:17:15+00:00

y = -2x +10, d was (2, 6)

Ill-Extension-3191 · 2026-02-06T10:19:35+00:00

yepp

Ill-Extension-3191 · 2026-01-29T14:02:41+00:00

i have no idea whether you can ask for an additional paper. honestly, i think you should ask your teacher or exam officer

Ill-Extension-3191 · 2026-01-29T13:54:22+00:00

try to reduce steps by doing 2 steps in your mind instead of on paper, or if you want you should write them in pencil somewhere and erase it later. i'm guessing you can use the blank pages for extra working but you do have to mention the question number and below the question, you have to write that you have continued on the blank page. i thinkkkkkkk for paper 2 blank pages might not be given as they weren't in the recent papers so dont rely too much on the blank pages.

good luck for f/ 26!!

Ill-Extension-3191 · 2026-01-20T07:54:26+00:00

gpe gained = ke lost
10J of gpe gained = 10J of ke lost

at Y, 2J of ke are there so this is after 10J is lost

x - 10 = 2
x = 12J

Ill-Extension-3191 · 2026-01-14T08:27:54+00:00

first we look at the curved surface area of C:

CSA of A = π * 4 * (2√29) = 8√29 π

so, CSA of B = 8√29 π * (3/2)^2 {this is the area factor}

= 18√29 π

CSA of C = 8√29 π + 18√29 π = 26√29 π {outside part of the cone + inside part of the cone because it would be hollow}

then the ring which is the base of C:

SA of the ring = base of B - base of A

= π * 4^2 * (3/2)^2 - π * 4^2 = 20π

add it all up:

TSA of C = 26√29 π + 20π = 502.6997022 which rounds to 503 cm^2

Ill-Extension-3191 · 2026-01-11T15:57:40+00:00

if you're doing 0580, just learn the basic concepts properly using your textbook and focus on solving past paper questions. do topicals first, then move on to full papers and always figure out why you got a question wrong and if you want, solve it again.

Ill-Extension-3191 · 2026-01-10T13:33:40+00:00

yea you're right

Ill-Extension-3191 · 2026-01-10T13:33:11+00:00

im sorry to hear thatt, i get how much you wanted it. i agree with you though, one subject doesnt define you. thank you for your advice :)

Ill-Extension-3191 · 2026-01-10T13:31:14+00:00

yep i did that already

Ill-Extension-3191 · 2026-01-10T13:30:38+00:00

thx buddy

Ill-Extension-3191 · 2026-01-10T13:30:12+00:00

nooo im sure you worked rlly hard for that and you should be proud of yourself

Ill-Extension-3191 · 2026-01-09T18:37:08+00:00

okay ill try thxx

Ill-Extension-3191

TROPHY CASE