Video: Koj txiav txim siab li cas ntawm daim duab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov chaw yog qhov nruab nrab thiab / lossis txhais tau tias ntawm cov ntaub ntawv. Qhov sib kis yog qhov ntau ntawm cov ntaub ntawv. Thiab, cov puab piav txog hom daim duab . Plaub txoj kev piav qhia puab yog seb nws yog symmetrical, pes tsawg peaks nws muaj, yog hais tias nws yog skewed rau sab laug los yog sab xis, thiab seb nws yog uniform.
Yog li ntawd, cov duab sib txawv ntawm kev faib khoom yog dab tsi?
Classifying shapes ntawm kev faib khoom. Muab faib faib ua symmetrical, sab laug ua skew , yog ua skew , uniform los yog bimodal.
Tsis tas li ntawd, yog ib kauj ruam muaj nuj nqi nce? A kauj ruam muaj nuj nqi yog ib yam tshwj xeeb ntawm kev sib raug zoo nyob rau hauv uas ib tug kom muaj nuj nqis nyob rau hauv cov kauj ruam nyob rau hauv kev sib raug rau lwm qhov ntau. Domain ib kauj ruam muaj nuj nqi f muab faib los yog muab faib ua ntau lub sijhawm. Hauv txhua lub sijhawm, a kauj ruam muaj nuj nqi f (x) tsis tu ncua.
Kuj paub, koj ua li cas thiaj nrhiav tau txoj kab nqes ntawm txoj kab nonlinear?
Nrhiav nqes hav Siv Derivative Piv txwv li, rau a kab muab los ntawm y = x^2 + 3x + 2, thawj derivative sib npaug 2x + 3. Txheeb xyuas qhov chaw koj xav tau xam qhov nqes hav . Xav tias tus txoj kab nqes tau txiav txim siab ntawm lub ntsiab lus (5, 5). Hloov tus nqi x nyob rau hauv lub derivative mus nrhiav tus txoj kab nqes.
Koj pom Y cuam tshuam li cas?
Rau nrhiav tus y cuam siv qhov sib npaug ntawm kab, ntsaws rau hauv 0 rau qhov x sib txawv thiab daws rau y . Yog hais tias qhov sib npaug yog sau nyob rau hauv txoj kab nqes- cuam tshuam daim ntawv, ntsaws rau hauv txoj kab nqes thiab qhov x thiab y coordinates rau ib qho point ntawm kab los daws rau y.
Pom zoo:
Koj yuav txiav txim siab li cas yog tias kev sib raug zoo yog qhov ua haujlwm ntawm daim duab?
LUS TEB: Cov lus teb piv txwv: Koj tuaj yeem txiav txim siab seb txhua lub ntsiab lus ntawm lub npe yog ua ke nrog ib lub ntsiab lus ntawm qhov ntau. Piv txwv li, yog muab ib daim duab, koj tuaj yeem siv txoj kab ntsug; Yog hais tias ib txoj kab ntsug hla cov duab ntau dua ib zaug, ces qhov kev sib raug zoo uas cov duab sawv cev tsis yog ib qho haujlwm
Yuav ua li cas koj txiav txim siab npaum li cas ntawm cov kua qaub uas yuav tsum tau neutralize lub hauv paus?
Kev daws qhov teeb meem Acid-Base Neutralization Kauj Ruam 1: Muab xam cov moles ntawm OH-. Molarity = moles / ntim. moles = Molarity x Volume. moles OH- = 0.02 M/100 milliliters. Kauj ruam 2: Xam qhov ntim ntawm HCl xav tau. Molarity = moles / ntim. Volume = moles/molarity. Volume = moles H+/0.075 Molarity
Yuav ua li cas koj txiav txim siab yog tias daim ntawv cog lus yog polar tsis muaj lub rooj electronegativity?
Kauj Ruam 2: Txheeb xyuas txhua daim ntawv cog lus raws li polar lossis nonpolar. (Yog hais tias qhov sib txawv ntawm electronegativity rau cov atoms nyob rau hauv ib daim ntawv cog lus yog ntau tshaj 0.4, peb xav txog daim ntawv cog lus polar. Yog hais tias qhov sib txawv ntawm electronegativity tsawg dua 0.4, daim ntawv cog lus yog qhov tseem ceeb nonpolar.) Yog tias tsis muaj polar bonds, lub molecule yog tsis muaj polar
Dab tsi yog qhov txawv ntawm lub xeev daim duab kos duab thiab daim duab ua haujlwm?
Lub xeev daim duab qauv yog siv los qhia qhov sib lawv liag ntawm lub xeev uas ib yam khoom mus dhau, qhov ua rau kev hloov ntawm ib lub xeev mus rau lwm qhov thiab qhov kev txiav txim uas tshwm sim los ntawm lub xeev hloov. Daim duab ua haujlwm yog ntws ntawm kev ua haujlwm yam tsis muaj qhov tshwm sim (kev tshwm sim) mechanism, lub xeev tshuab yog suav nrog lub xeev triggered
Yuav ua li cas koj txiav txim siab uas yog tus nqi txiav txim kauj ruam?
Tus nqi txiav txim siab kauj ruam yog kauj ruam qeeb tshaj plaws ntawm cov tshuaj tiv thaiv tshuaj uas txiav txim siab qhov nrawm (tus nqi) uas tag nrho cov tshuaj tiv thaiv ua tiav. Teb Tus nqi txiav txim kauj ruam yog kauj ruam thib ob vim nws yog kauj ruam qeeb. 2NO + 2H2 → N2 + 2H2O. Cov intermediates hauv cov tshuaj tiv thaiv no yog N2O2 thiab N2O