New servers, hooraaaay! More bandwidth, more power.
Quote from: nid404 on June 11, 2009, 03:01:20 pmQuote from: aquarian93 on June 11, 2009, 02:57:39 pmand guys doesnt sodium oxide hav a pH above 7 (metal oxide)den how cum the answer in nov 05, question 17 is C Read the question correctly. Sodium oxide, when in solution it forms OH-ions which give the pH for the solution and changes pH of water(7) to 12 Hence Cyea srry i rote it according to tht sodium i didnt read the que properly
Quote from: aquarian93 on June 11, 2009, 02:57:39 pmand guys doesnt sodium oxide hav a pH above 7 (metal oxide)den how cum the answer in nov 05, question 17 is C Read the question correctly. Sodium oxide, when in solution it forms OH-ions which give the pH for the solution and changes pH of water(7) to 12 Hence C
and guys doesnt sodium oxide hav a pH above 7 (metal oxide)den how cum the answer in nov 05, question 17 is C
hey guys ...ive got a question from nov 2001Page 4, Question 6 ...Neon has 10 e- and Sodium has 11 e- which makes the answer C, but the mark scheme says its D ...help !!
guys i need help wid May 06, no. 29y is it D? doesnt chrome plated keyring, rust?
Quote from: aquarian93 on June 11, 2009, 03:23:29 pmguys i need help wid May 06, no. 29y is it D? doesnt chrome plated keyring, rust?No, that's the whole point, chromium is resistant to corrosion. That is why stainless steel (which contains chromium) is used to plate cutlery.
the OH in the COOH of a carboxilyic acid reacts wid NaOH?
Quote from: aquarian93 on June 11, 2009, 03:28:00 pmthe OH in the COOH of a carboxilyic acid reacts wid NaOH?wht r u tryin to say i culdnt get u