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  • chem ergent

    With the help of electron digras,describethe formation ofmganesium chlorode and terachloromethane from atoms of relevant elements. State , with explantion , which of the two comounds has higher melting point.

    我只係想知 magnesium chloride 點 form ?

    係 covalent 定 molecule...

    係幾多個 magesium + 幾多個 chloride 呢?

    2 Answers化學1 decade ago
  • maths @!!! ergent

    if the eduation x[(2k-1)x+3]93k+1)+9 = 0 has 2 equal real roots, find

    (a) the value of k

    (b) the roots of tthe given equation

    2 Answers數學1 decade ago
  • physics !

    Some ice cubes (0.1kg, 0 deg.C) are added to a glass of Coke (0.3kg, 25deg.C).If no heat is lost to the surroundings, find thetemperature T of he misture . Is T higher or lower in reality,why ?

    Please do it step by step , thank you =]

    1 Answer其他 - 科學1 decade ago
  • physics

    Please calculate the folowing question step by step. =)

    Q: Calculate the amount of 100 deg.C steam needed to change 1 kg of water at 0 deg.C to water at 100 deg.C

    1 Answer其他 - 科學1 decade ago
  • Physics !!!

    A 1-kW hwater, immersed in water (0.5kg, 20 degree Celcius)is switched in for 10 mins. Calculate the maximum aount of water boiled away . PLEASE explain and write the steps, thank you =]

    A 0.191 kg

    B 0.27 kg

    C 0.5 kg

    D 3 kg

    1 Answer其他 - 科學1 decade ago
  • Rice cooker-PHYSICS

    How the rice cooker knows when to stop ?

    1 Answer其他 - 科學1 decade ago
  • Fidel Castro

    Fidel Castro 佢o係 cuba missile crisis 入面係一個咩既角色, 做左 d 咩 呢 ?

    1 Answer歷史1 decade ago
  • west Germany & east Germany URGENT !!!!!!!!!!

    請問可否講下 east germany & west germany 同 eastern germany & western germany 係咪講緊唔同既野 ? 佢地有咩分別呀 ??

    1 Answer小學及中學教育1 decade ago
  • ewest Germany & east Germany URGENT !!!!!!!!!!

    請問可否講下 east germany & west germany 同 eastern germany & western germany 係咪講緊唔同既野 ? 佢地有咩分別呀 ??

    1 Answer小學及中學教育1 decade ago
  • 蔣介石 !!!!!!!!!!!! 影響 !!!!!!!!!!!! 20 點 !!!!!!!!

    蔣介石對中國o既影響 !!!!

    唔要生平!!!!!!

    2 Answers歷史1 decade ago
  • 有咩食物含有維他命 E (請說出多項食物)

    有咩食物含有維他命 E

    愈多愈好 唔該哂

    3 Answers其他 - 健康1 decade ago