T\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c<\/strong>
C\u00f3 r\u1ea5t nhi\u1ec1u con \u0111\u01b0\u1eddng \u0111\u1ec3 gi\u00fap ch\u00fang ta t\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c trong th\u1eddi \u0111i\u1ec3m n\u00e0y:<\/p>\n\n\n\n

\u0110\u1ecdc s\u00e1ch gi\u00e1o khoa l\u00e0 m\u1ed9t con \u0111\u01b0\u1eddng th\u01b0\u1eddng th\u1ea5y v\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ed1i v\u1edbi \u0111a s\u1ed1 h\u1ecdc sinh tuy nhi\u00ean s\u00e1ch gi\u00e1o khoa ki\u1ebfn th\u1ee9c r\u1ea5t \u0111\u1ea7y \u0111\u1ee7 nh\u01b0ng \u00edt c\u00f3 s\u1ef1 linh \u0111\u1ed9ng.<\/p>\n\n\n\n

C\u00f3 b\u1ea1n d\u00f9ng s\u01a1 \u0111\u1ed3 t\u01b0 duy \u0111\u1ec3 t\u1ed5ng h\u1ee3p ki\u1ebfn th\u1ee9c, vi\u1ec7c ti\u1ebfp c\u1eadn ki\u1ebfn th\u1ee9c d\u01b0\u1edbi d\u1ea1ng c\u00e1c kh\u1ed1i h\u00ecnh v\u00e0 m\u00e0u s\u1eafc s\u1ebd gi\u00fap k\u00edch th\u00edch vi\u1ec7c ghi nh\u1edb v\u00e0 l\u00e0m vi\u1ec7c c\u1ee7a n\u00e3o b\u1ed9 qua \u0111\u00f3 t\u0103ng hi\u1ec7u qu\u1ea3 c\u1ee7a h\u1ecdc t\u1eadp.<\/p>\n\n\n\n

C\u00f3 b\u1ea1n d\u00f9ng th\u1eddi gian r\u1ea3nh theo d\u00f5i c\u00e1c video livestream ph\u00e2n t\u00edch v\u00e0 ch\u1eefa \u0111\u1ec1 c\u1ee7a c\u00e1c th\u1ea7y gi\u00e1o c\u00f3 uy t\u00edn tr\u00ean c\u1ed9ng \u0111\u1ed3ng c\u00f3 th\u1ec3 k\u1ec3 \u0111\u1ebfn nh\u01b0 Toliha elearning, Ho\u0323c ma\u0303i, Tuy\u00ea\u0309n sinh 247\u2026 v\u1edbi l\u1ed1i h\u01b0\u1edbng d\u1eabn, \u0111i b\u00e0i, m\u1edf r\u1ed9ng kh\u00e1 chi ti\u1ebft.<\/p>\n\n\n\n

Tuy nhi\u00ean theo kinh nghi\u1ec7m c\u00e1ch t\u1ed1t nh\u1ea5t c\u00e1c b\u1ea1n h\u00e3y t\u1ef1 \u0111\u00f3ng vai l\u00e0 nh\u1eefng ng\u01b0\u1eddi ra \u0111\u1ec1, ph\u00e1t tri\u1ec3n \u0111\u1ec1 thi, kh\u00f4ng d\u1eebng l\u1ea1i \u1edf 1 c\u00e2u h\u1ecfi m\u00e0 m\u1edf r\u1ed9ng theo theo nhi\u1ec1u h\u01b0\u1edbng v\u00e0 t\u1ef1 t\u00ecm c\u00e1ch gi\u1ea3i \u0111\u00e1p.<\/p>\n\n\n\n

V\u00ed d\u1ee5 nh\u01b0 t\u1eeb c\u00e2u h\u1ecfi h\u1ee3p ch\u1ea5t n\u00e0o d\u01b0\u1edbi \u0111\u00e2y c\u00f3 ph\u1ea3n \u1ee9ng m\u00e0u biure? \u0110\u1eebng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf \u0111\u00e1p \u00e1n A, B, C hay D h\u00e3y t\u1ef1 \u0111\u1eb7t cho m\u00ecnh c\u00e1c c\u00e2u h\u1ecfi li\u00ean \u0111\u1edbi nh\u01b0 c\u00e1c lo\u1ea1i h\u1ee3p ch\u1ea5t n\u00e0o c\u00f3 ph\u1ea3n \u1ee9ng v\u1edbi Cu(OH)2? H\u1ee3p ch\u1ea5t n\u00e0o ph\u1ea3n \u1ee9ng t\u1ea1o dung d\u1ecbch xanh th\u1eabm \u0111\u1eb7c ch\u01b0ng? H\u1ee3p ch\u1ea5t n\u00e0o ph\u1ea3n \u1ee9ng t\u1ea1o s\u1ea3n ph\u1ea9m c\u00f3 m\u00e0u t\u00edm (peptit\/protein)? Peptit l\u00e0 ch\u1ea5t c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m g\u00ec?\u2026 nh\u01b0 v\u1eady m\u1ed7i \u0111\u01a1n v\u1ecb ki\u1ebfn th\u1ee9c s\u1ebd nh\u01b0 nh\u1eefng n\u00fat th\u1eaft c\u1ee7a t\u1ea5m l\u01b0\u1edbi bao g\u1ecdn l\u1ea1i t\u1ea5t c\u1ea3 ki\u1ebfn th\u1ee9c c\u1ee7a ch\u00fang ta. C\u00e0ng l\u1eb7p l\u1ea1i nhi\u1ec1u ki\u1ebfn th\u1ee9c c\u1ee7a ch\u00fang ta c\u00e0ng v\u1eefng ch\u1eafc ch\u00fang ta c\u00e0ng t\u1ef1 tin.<\/p>\n\n\n\n

V\u1edbi c\u00e1c ki\u1ebfn th\u1ee9c c\u00f3 n\u00e9t t\u01b0\u01a1ng \u0111\u1ed3ng c\u00e1c em n\u00ean h\u1ec7 th\u1ed1ng d\u1ef1a theo thao t\u00e1c so s\u00e1nh \u0111\u1ed1i chi\u1ebfu t\u1eeb \u0111\u00f3 ki\u1ebfn th\u1ee9c c\u1ee7a ch\u00fang ta s\u1ebd khoa h\u1ecdc h\u01a1n. V\u00ed d\u1ee5 nh\u01b0 ki\u1ebfn th\u1ee9c v\u1ec1 vi\u1ebft \u0111\u1ed3ng ph\u00e2n c\u00e1c em c\u00f3 th\u1ec3 so s\u00e1nh c\u1ea5u t\u1ea1o c\u00e1c nh\u00f3m ch\u1ee9c \u0111\u1ec3 h\u00ecnh th\u00e0nh ph\u01b0\u01a1ng ph\u00e1p vi\u1ebft nhanh v\u00e0 chu\u1ea9n hay ph\u1ea7n ki\u1ebfn th\u1ee9c v\u1ec1 kim lo\u1ea1i Al, Fe, Cr c\u00f3 th\u1ec3 so s\u00e1nh v\u00e0 \u0111\u01b0a ra nh\u1eadn x\u00e9t r\u1eb1ng Cr (II) c\u00f3 t\u00ednh ch\u1ea5t t\u01b0\u01a1ng t\u1ef1 nh\u01b0 Fe(II) v\u00e0 Cr(III) c\u00f3 t\u00ednh ch\u1ea5t g\u1ea7n gi\u1ed1ng v\u1edbi Al(III) ch\u1eb3ng h\u1ea1n.<\/p>\n\n\n\n

Nh\u1eefng \u0111i\u1ec1u n\u00ean l\u00e0m<\/strong>
“Bi\u1ebft ng\u01b0\u1eddi bi\u1ebft ta tr\u0103m tr\u1eadn tr\u0103m th\u1eafng” nh\u1ea5t l\u00e0 trong giai \u0111o\u1ea1n cu\u1ed1i (7 ng\u00e0y cu\u1ed1i) \u0111\u1eebng c\u00f3 \u0111\u1ec3 \u00fd hay du nh\u1eadp nh\u1eefng c\u00f4ng th\u1ee9c gi\u1ea3i nhanh trong s\u1ed1 m\u1ea5y ch\u1ee5c c\u00f4ng th\u1ee9c. Tin ch\u1eafc m\u1ed9t \u0111i\u1ec1u c\u00e1c em s\u1ebd kh\u00f3 \u0111\u1ec3 \u00e1p d\u1ee5ng hay nh\u1edb \u0111\u1ec3 s\u1eed d\u1ee5ng \u0111\u00e2u v\u00ed d\u1ee5 nh\u01b0 c\u00f4ng th\u1ee9c t\u00ednh s\u1ed1 \u0111\u1ed3ng ph\u00e2n ch\u1eb3ng h\u1ea1n\u2026 T\u1ea5t c\u1ea3 s\u1ebd \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft d\u1ec5 d\u00e0ng khi c\u00e1c em c\u00f3 chi\u1ebfn thu\u1eadt v\u00e0 c\u00f3 k\u0129 n\u0103ng l\u00e0m b\u00e0i.<\/p>\n\n\n\n

V\u1edbi nh\u1eefng b\u1ea1n l\u1ef1c h\u1ecdc trung b\u00ecnh, kh\u00e1 n\u00ean c\u00e2n \u0111\u1ed1i th\u1eddi gian t\u00ecm hi\u1ec3u c\u00e1c c\u00e2u h\u1ecfi v\u1eadn d\u1ee5ng cao, \u0111\u1eebng qu\u00e1 l\u00fan s\u00e2u v\u00e0o nh\u1eefng c\u00e2u n\u00e0y m\u00e0 h\u00e3y nh\u1edb d\u00e0nh th\u1eddi gian \u0111\u1ec3 c\u1ee7ng c\u1ed1 th\u1eadt v\u1eefng cho n\u1ec1n m\u00f3ng m\u00ecnh \u0111\u00e3 c\u00f3 s\u1eb5n. \u0110\u00f4i khi thi c\u1eed n\u00f3 c\u00f2n ph\u1ee5 thu\u1ed9c m\u1ed9t ch\u00fat v\u00e0o may m\u1eafn n\u1eefa.<\/p>\n\n\n\n

\u0110\u1eebng l\u00e0m qu\u00e1 nhi\u1ec1u \u0111\u1ec1 m\u1edbi, h\u00e3y t\u1eadp trung v\u00e0o nh\u1eefng \u0111\u1ec1 \u0111\u00e3 l\u00e0m v\u00e0 \u0111\u00e3 ch\u1eefa, r\u00e0 l\u1ea1i t\u1ea7m 2 \u2013 3 l\u1ea7n \u0111\u1ec1 thi minh h\u1ecda v\u00e0 \u0111\u1ec1 thi THPT qu\u00f4\u0301c gia n\u0103m h\u1ecdc tr\u01b0\u1edbc \u0111\u1ec3 c\u1ea3m th\u1ea5y t\u1ef1 tin.<\/p>\n\n\n\n

V\u00e0 cu\u1ed1i c\u00f9ng lu\u00f4n lu\u00f4n ph\u1ea3i ch\u1ecdn cho m\u00ecnh th\u1eddi \u0111i\u1ec3m h\u1ecdc tho\u1ea3i m\u00e1i nh\u1ea5t, ph\u00e2n b\u1ed1 th\u1eddi gian h\u1ee3p li\u0301 nh\u1ea5t v\u00e0 gi\u1eef cho m\u00ecnh c\u00f3 s\u1ee9c kh\u1ecfe t\u1ed1t nh\u1ea5t n\u0103ng l\u01b0\u1ee3ng lu\u00f4n tr\u00e0n \u0111\u1ea7y c\u00e1c em nh\u00e9 c\u00f3 nh\u01b0 th\u1ebf c\u00e1c em m\u1edbi c\u00f3 th\u1ec3 ph\u00e1t huy \u0111\u01b0\u1ee3c nh\u1eefng n\u0103ng l\u1ef1c c\u1ee7a b\u1ea3n th\u00e2n.<\/p>\n\n\n\n

Th\u1ea7y ch\u00fac c\u00e1c em s\u1ebd th\u1eadt t\u1ec9nh t\u00e1o v\u00e0 c\u00f3 m\u1ed9t l\u1ed9 tr\u00ecnh h\u1ecdc t\u1eadp m\u00f4n Ho\u0301a ho\u0323c khoa h\u1ecdc trong th\u1eddi gian cu\u1ed1i n\u00e0y. <\/p>\n","protected":false},"excerpt":{"rendered":"

H\u00f3a h\u1ecdc l\u00e0 m\u1ed9t m\u00f4n h\u1ecdc \u0111\u1eb7c th\u00f9 c\u00f3 s\u1ef1 x\u00e2u chu\u1ed7i ki\u1ebfn th\u1ee9c trong 3 n\u0103m h\u1ecdc THPT n\u00ean c\u1ea7n nh\u1eefng “tip” ri\u00eang \u0111\u1ec3 \u00f4n t\u1eadp. D\u01b0\u1edbi \u0111\u00e2y th\u1ea7y Tr\u1ea7n Ph\u01b0\u01a1ng Duy, gi\u00e1o vi\u00ean b\u1ed9 m\u00f4n H\u00f3a h\u1ecdc s\u1ebd g\u1ee3i \u00fd l\u1ed9 tr\u00ecnh ch\u00ednh ph\u1ee5c m\u00f4n h\u1ecdc giai \u0111o\u1ea1n c\u1eadn ng\u00e0y thi. Luy\u1ec7n \u0111\u1ec1 […]<\/p>\n","protected":false},"author":3,"featured_media":40420,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[159],"tags":[],"yoast_head":"\n