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Worksheets1 SEC - Chemistry
Total questions: 18
Worksheet time: 1hrs 19mins
Complete :
Avogadro's (a)
Equal volumes of different gases contain an equal number of molecules, at the same standard temperature and pressure ( STP)
Complete :
Calculate the number of molecules that are found in a sample of sulphur dioxide of mass 32 g [ S=32 , O=16 ]
The number of molecules of SO2 = (a) x 1023 molecules
Complete :
Avogadro's (a)
Gas volume is directly proportional to the number of its moles when the temperature and pressure are constant
Complete :
The (a) reactant
The reactant which is completely consumed during the chemical reaction and reacts with other reactants to produce the lowest number of moles of the product
" قال رسول الله صلى الله عليه وسلم : " مَن صلَّى الصبح فهو في ذِمَّة الله
لاتدع صلاتك مهما كانت الظروف
The volume of 4 g of hydrogen gas at STP equals ............
[ H=1 ]
89.6 L
44.8 L
22.4 L
2 L
What is the total number of moles of oxygen ions found in 240 g of NH4NO3
[ N=14 , O=16 , H=1 ]
3 mol
6 mol
9 mol
27mol
The gas which the volume of 0.6 g of it = 80 ml, at STP , its molar mass = .............
340 g/mol
310 g/mol
85 g/mol
168 g/mol
ما رأيك فى الاختبار التفاعلى فى مادة الكيمياء لغات ؟
مع تحياتى أ. أشرف موسى محمد
Chemistry Teacher
Complete :
The summation of coefficient of equation after balance
Al(s) + O2(g) ====> Al2O3(s)
Equal = (a)
Complete :
Calculation of the molar mass of hydrated copper sulphate crystals CuSO4.5H2O
[ Cu=63.5 , S=32 , O=16 , H=1 ]
Equal = (a) g/mol
Complete :
Write the chemical formula of :
Aluminium Phosphate
(a)
Complete :
Calculate the mass of CaCO3 required to produce 5.1 L of CO2 gas at STP .
According to the following equation :
CaCO3(s) + 2HCl(aq) ===> CaCl2(aq) + CO2(g) + H2O(l)
[ CaCO3 = 100 g/mol , CO2 = 44 g/mol]
Mass of CaCO3 = (a) g
قرب لأقرب رقمين بعد العلامة العشرية
Complete :
In the equation :
2Mg(s) + O2(g) ==Δ==> 2MgO(s)
[ Mg = 24 , O = 16 ]
What is the limiting reactant ( Mg or O2 or 2MgO ) ? when add 16 g to 48 g of Mg
(a)
Choose :
3 mole of CH4 ( Methane gas ) equal ......... [ C=12 , H=1 ]
48 g/mol
18.06 x 1023 mole of molecule of methane
67.2 L
18.06 x 1023 mole of Carbon atoms
All the previous
Choose :
Calculate the volume of 8 g of oxygen gas at STP. [ O=16 ]
Volume of O2 gas = ............. L
5.6
2.7
11.2
All the previous
Choose :
Net ionic equation of any neutralization reaction will be :
H(aq) + OH(aq) ===> H2O(l)
H-(aq) + OH+aq) ===> H2O(l)
H+(aq) + OH-(aq) ===> H2O(l)
All the previous
قال رسول الله صلى الله عليه وسلم :
"دعوة ذي النون إذ دعاه وهو في بطن الحوت: لا إله إلا أنت سبحانك إني كنت من الظالمين ، فإنه لم يدع بها رجل مسلم في شيء قط إلا استجاب الله له"
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