Khi ta cho \u0111\u01b0\u1eddng v\u00e0o n\u01b0\u1edbc, m\u1ed9t l\u00fac sau c\u00e1c h\u1ea1t \u0111\u01b0\u1eddng s\u1ebd bi\u1ebfn m\u1ea5t v\u00e0 n\u01b0\u1edbc l\u1ea1i c\u00f3 v\u1ecb ng\u1ecdt. Khi b\u1ea1n \u0111\u1ee9ng g\u1ea7n m\u1ed9t chi\u1ebfc xe \u00f4 t\u00f4 \u0111ang nh\u1eadn ti\u1ebfp x\u0103ng, b\u1ea1n s\u1ebd ng\u1eedi th\u1ea5y m\u00f9i x\u0103ng. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u00e0m nhi\u1ec1u ng\u01b0\u1eddi ngh\u0129 r\u1eb1ng v\u1eadt ch\u1ea5t c\u00f3 ph\u1ea3i do c\u00e1c h\u1ea1t nh\u1ecf m\u1eaft ta kh\u00f4ng nh\u00ecn th\u1ea5y t\u1ea1o n\u00ean ch\u0103ng?<\/p>\n\n\n\n
Qua nghi\u00ean c\u1ee9u, c\u00e1c nh\u00e0 ho\u00e1 h\u1ecdc t\u00ecm th\u1ea5y v\u1eadt ch\u1ea5t \u0111\u1ea1i \u0111a s\u1ed1 l\u00e0 do c\u00e1c ph\u00e2n t\u1eed nh\u1ecf t\u1ea1o n\u00ean. V\u00ed d\u1ee5 \u0111\u01b0\u1eddng l\u00e0 do nhi\u1ec1u ph\u00e2n t\u1eed \u0111\u01b0\u1eddng t\u1ea1o n\u00ean. C\u00e1c ch\u1ea5t nh\u01b0 n\u01b0\u1edbc, oxy, r\u01b0\u1ee3u \u2026 \u0111\u1ec1u do c\u00e1c ph\u00e2n t\u1eed t\u1ea1o n\u00ean.<\/p>\n\n\n\n
Ph\u00e2n t\u1eed l\u00e0 c\u00e1c lo\u1ea1i h\u1ea1t nh\u01b0 th\u1ebf n\u00e0o? Ch\u00fang ta \u0111\u1ec1u bi\u1ebft \u0111\u01b0\u1eddng c\u00f3 t\u00ednh ch\u1ea5t chung l\u00e0 ng\u1ecdt. 10gam \u0111\u01b0\u1eddng c\u00f3 v\u1ecb ng\u1ecdt, khi chia th\u00e0nh 5g, 2,5g, 1,25g\u2026 th\u00ec c\u00e1c ph\u1ea7n nh\u1ecf \u0111\u00f3 c\u1ee7a \u0111\u01b0\u1eddng c\u0169ng \u0111\u1ec1u c\u00f3 v\u1ecb ng\u1ecdt. N\u1ebfu ta t\u01b0\u1edfng t\u01b0\u1ee3ng n\u1ebfu c\u00f3 th\u1ec3 chia nh\u1ecf, \u0111\u1ebfn t\u1eebng ph\u1ea7n nh\u1ecf \u0111\u1ebfn m\u1ee9c m\u1eaft th\u01b0\u1eddng kh\u00f4ng nh\u00ecn th\u1ea5y, th\u00ec c\u00e1c ph\u1ea7n nh\u1ecf n\u00e0y c\u0169ng c\u00f3 v\u1ecb ng\u1ecdt.<\/p>\n\n\n\n
\u0110\u01b0\u01a1ng nhi\u00ean c\u00e1c ph\u00e2n t\u1eed \u0111\u01b0\u1eddng c\u00f2n c\u00f3 th\u1ec3 chia nh\u1ecf, v\u00ed d\u1ee5 d\u00f9ng nhi\u1ec7t th\u00ec c\u00f3 th\u1ec3 bi\u1ebfn \u0111\u01b0\u1eddng th\u00e0nh cacbon v\u00e0 n\u01b0\u1edbc, nh\u01b0ng l\u00fac b\u1ea5y gi\u1edd s\u1ebd kh\u00f4ng c\u00f2n gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh ch\u1ea5t v\u1ed1n c\u00f3 c\u1ee7a \u0111\u01b0\u1eddng n\u1eefa v\u00e0 \u0111\u00e3 bi\u1ebfn th\u00e0nh ch\u1ea5t kh\u00e1c. Do \u0111\u00f3 c\u00f3 th\u1ec3 th\u1ea5y ph\u00e2n t\u1eed l\u00e0 c\u00e1c h\u1ea1t nh\u1ecf c\u00f2n gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh ch\u1ea5t v\u1ed1n c\u00f3 c\u1ee7a ph\u00e2n t\u1eed. C\u00e1c ph\u00e2n t\u1eed c\u00f9ng lo\u1ea1i c\u00f3 t\u00ednh ch\u1ea5t gi\u1ed1ng nhau. C\u00e1c ph\u00e2n t\u1eed kh\u00e1c lo\u1ea1i s\u1ebd c\u00f3 t\u00ednh ch\u1ea5t kh\u00e1c nhau.<\/p>\n\n\n\n
V\u1eady ph\u00e2n t\u1eed l\u1edbn c\u1ee1 bao nhi\u00eau? Kh\u00f4ng c\u00f3 ti\u00eau chu\u1ea9n n\u00e0o quy \u0111\u1ecbnh \u0111\u1ed9 l\u1edbn c\u1ee7a ph\u00e2n t\u1eed. Ph\u00e2n t\u1eed c\u00f3 lo\u1ea1i c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn, c\u00f3 lo\u1ea1i k\u00edch th\u01b0\u1edbc b\u00e9. \u0110\u1ed9 l\u1edbn nh\u1ecf c\u00f3 th\u1ec3 c\u00e1ch nhau \u0111\u1ebfn h\u00e0ng tri\u1ec7u l\u1ea7n. C\u00e1c ph\u00e2n t\u1eed c\u1ee7a cao su, c\u1ee7a c\u00e1c protein c\u00f3 k\u00edch th\u01b0\u1edbc r\u1ea5t l\u1edbn, ng\u01b0\u1eddi ta g\u1ecdi \u0111\u00f3 l\u00e0 c\u00e1c cao ph\u00e2n t\u1eed. C\u00f2n c\u00e1c ph\u00e2n t\u1eed oxy, hy\u0111ro, ph\u00e2n t\u1eed n\u01b0\u1edbc l\u00e0 nh\u1eefng ph\u00e2n t\u1eed c\u00f3 k\u00edch r\u1ea5t b\u00e9.<\/p>\n\n\n\n
C\u00e1c ph\u00e2n t\u1eed d\u00f9 l\u1edbn, d\u00f9 b\u00e9 \u0111\u1ec1u do c\u00e1c “h\u1ea1t nh\u1ecf” l\u00e0 nh\u1eefng nguy\u00ean t\u1eed c\u1ea5u t\u1ea1o n\u00ean. Ph\u00e2n t\u1eed n\u01b0\u1edbc l\u00e0 do hai nguy\u00ean t\u1eed hy\u0111ro v\u00e0 m\u1ed9t nguy\u00ean t\u1eed oxy c\u1ea5u t\u1ea1o n\u00ean. C\u00e1c nguy\u00ean t\u1eed c\u00f3 \u0111\u1ed9 l\u1edbn kh\u00f4ng kh\u00e1c nhau nhi\u1ec1u l\u1eafm. C\u00e1c ch\u1ea5t d\u1ebbo, c\u00e1c protein s\u1edf d\u0129 c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn l\u00e0 do r\u1ea5t nhi\u1ec1u nguy\u00ean t\u1eed c\u1ea5u t\u1ea1o n\u00ean. Ngo\u00e0i ra c\u00e1c nguy\u00ean t\u1eed c\u0169ng c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p v\u1edbi nhau \u0111\u1ec3 t\u1ea1o n\u00ean v\u1eadt ch\u1ea5t nh\u01b0 s\u1eaft, \u0111\u1ed3ng, v\u00e0ng, b\u1ea1c\u2026 l\u00e0 nh\u1eefng kim lo\u1ea1i n\u00f3i chung l\u00e0 do c\u00e1c nguy\u00ean t\u1eed s\u1eaft, \u0111\u1ed3ng, v\u00e0ng, b\u1ea1c\u2026 c\u1ea5u t\u1ea1o n\u00ean. V\u00ec v\u1eady ph\u00e2n t\u1eed v\u00e0 nguy\u00ean t\u1eed \u0111\u1ec1u l\u00e0 nh\u1eefng h\u1ea1t nh\u1ecf c\u1ea5u t\u1ea1o n\u00ean v\u1eadt ch\u1ea5t.<\/p>\n\n\n\n
Ph\u00e2n t\u1eed v\u1eeba nh\u1ecf l\u1ea1i v\u1eeba nh\u1eb9. V\u00ed d\u1ee5 ph\u00e2n t\u1eed n\u01b0\u1edbc ch\u1ec9 n\u1eb7ng v\u00e0o kho\u1ea3ng 0,00000000000000000000003g ngh\u0129a l\u00e0 n\u1ebfu l\u1ea5y gam l\u00e0m \u0111\u01a1n v\u1ecb th\u00ec con s\u1ed1 c\u00f3 ngh\u0129a ph\u1ea3i \u0111\u1ee9ng sau 22 con s\u1ed1 0!<\/p>\n\n\n\n
Ph\u00e2n t\u1eed n\u01b0\u1edbc nh\u1ecf nh\u01b0 v\u1eady n\u00ean m\u1ed9t gi\u1ecdt n\u01b0\u1edbc s\u1ebd c\u00f3 v\u00f4 s\u1ed1 ph\u00e2n t\u1eed, s\u1ed1 ph\u00e2n t\u1eed n\u01b0\u1edbc trong m\u1ed9t gi\u1ecdt n\u01b0\u1edbc l\u1edbn \u0111\u1ebfn kinh ng\u01b0\u1eddi. Th\u1ebf th\u00f4ng th\u01b0\u1eddng th\u00ec m\u1ed9t gi\u1ecdt n\u01b0\u1edbc c\u00f3 bao nhi\u00eau ph\u00e2n t\u1eed? N\u1ebfu c\u00f3 1000 ng\u01b0\u1eddi, m\u1ed7i ng\u01b0\u1eddi m\u1ed7i gi\u00e2y \u0111\u1ebfm m\u1ed9t ph\u00e2n t\u1eed n\u01b0\u1edbc, \u0111\u1ebfm li\u00ean t\u1ee5c kh\u00f4ng ng\u1eebng gi\u00e2y n\u00e0o, \u0111\u1ebfm su\u1ed1t m\u1ed9t n\u0103m th\u00ec s\u1ed1 ph\u00e2n t\u1eed \u0111\u1ebfm \u0111\u01b0\u1ee3c ch\u1ec9 b\u1eb1ng 1 ph\u1ea7n n\u0103m t\u1ef7 s\u1ed1 ph\u00e2n t\u1eed c\u00f3 trong 1 gi\u1ecdt n\u01b0\u1edbc.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Ph\u00e2n t\u1eed; Nguy\u00ean t\u1eed.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Khi ta cho \u0111\u01b0\u1eddng v\u00e0o n\u01b0\u1edbc, m\u1ed9t l\u00fac sau c\u00e1c h\u1ea1t \u0111\u01b0\u1eddng s\u1ebd bi\u1ebfn m\u1ea5t v\u00e0 n\u01b0\u1edbc l\u1ea1i c\u00f3 v\u1ecb ng\u1ecdt. Khi b\u1ea1n \u0111\u1ee9ng g\u1ea7n m\u1ed9t chi\u1ebfc xe \u00f4 t\u00f4 \u0111ang nh\u1eadn ti\u1ebfp x\u0103ng, b\u1ea1n s\u1ebd ng\u1eedi th\u1ea5y m\u00f9i x\u0103ng. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y l\u00e0m nhi\u1ec1u ng\u01b0\u1eddi ngh\u0129 r\u1eb1ng v\u1eadt ch\u1ea5t c\u00f3 ph\u1ea3i do c\u00e1c h\u1ea1t […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,15],"tags":[],"class_list":["post-7737","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7737","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=7737"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7737\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}