Questions asked by shiis m.

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• How many grams of oxygen will be produced by decomposing 96gram of potasium chlorate? Thanks
  
• 1)Balance the Reaction between:CuO+NH3--Cu+N2+H2? Thank you
  
• Calculate The gram molecular masses of the following A)cacO3 B)H2O2? Thanks
  
• How many litters of hydrogen are needed to react with 2.24litters of nitrogen to produce ammonia gas? Thanks
  
• 12grams of magnesium is made to react with enough amount of HCl.what volume of hydrogen gas will be collected at S.T.P? THANKS
  
• Which is not true about 1mole of oxygen gas at S.T.P? A)it occupies 22.4litters B) it's gram molecular mass is 16gram C) it's gram molecular mass is 32gram D)none? Thanks
  
• A substance that changes the rate of a reaction without itself undergoing any net change is A) oxidizing agent B) Reducing agent C) Catalyst D)none?
  
• In the reaction H2+Cl2~2HCl.so A) hydrogen is oxidized B) chlorine is reduced C) chlorine is an oxidizing agent D)all of the above? Thanks
  
• When the equation cacO3+HCl=CaCl2+H20+CO2 is balanced the coefficient of HCl is: A)2 B)1 C)3 D)all of the above? Thanks
  
• Change the active voice into passive voice? 1-the doctor asked the priest a question? 2-the Farmers have picked coffee beans? 3-man cannot avoid natural disasters.
  
• Change the following sentences into Report speech?
  
• Rewrite the following sentences putting the adverbial s in their correct positions?
  
• -True or false? 2.the resultant acceleration of aparticle in accelerated circular motion is always along the radius of the. circle and towards the center.
  
• True or false the motion of a projectile thrown Horizontally is a two dimensional motion?
  
• True or false? If no external resultant torque acts on a body its angular momentum remains constant.
  
• True or false? the gravitational force between two particles depends upon the medium between the two particles. Thanks
  
• True or false? -the speed of a planet is different at different positions in it's orbit.
  
• -True or false? -moment of inertia is rotational analog of mass Thanks
  
• True or false? -the direction of centripetal force is analog tangent to the circle. Thanks
  
• True or false? -An object may accelerated even though it is moving with constant speed.
  
• True or false? -It is easier to open a door by pushing it at the hinges rather than it at the handle. Thanks
  
• True or false? -MOMENT of inertia of a particle rotation about an axis decrease when it's distance from the axis increase. Thanks
  
• True or false? -presence of excess glucose in urine is a best signal to diabetes inspidus. Thanks
  
• True or false? Too concentrated blood is a signal for production of antidiuretic hormone (ADH) Thanks
  
• True or false? *Light dependent reaction of photosynthesis occurs in stromal free space to generate ATP AND NADPH2. THANKS
  
• Write the four necessary conditions for the process of photosynthesis? A) B) C) D) Thanks
  
• Choose? -Actively dividing cells are found in all of the following regions of a plant except? A) shoot tip meristem B) Root tip meristem C) vascular cambium and cork cambium D) Root cap. Thanks
  
• Work out? -two bodies are placed one meter a part. How much further should they be displaced in order to reduce the gravitational force between them by 1/16------? Thanks
  
• Work out? The vertical and horizontal component of a fired projectile are 30m/S and 20M/S respectively. What is the magnitude of the velocity after 1.5 second is-------(Take g=10M/S²)? Thanks
  
• Work out? How much work is need to carry a change of 24×10-6c from one point in an electronic field to another point when the potential difference between the two points is 1500V? Thanks
  
• Work out? The maximum range of projectile is 3000M.what would be its range when it is launched at an angle of 150 with the horizontal? Thanks
  
• True or false? Moment of inertia of of a particle rotation about an axis degreeses when it's distance from the axis increase. Thanks
  
• Work out? If you throw a maximum range of 45m, what maximum height you might jump assuming the same initial speed in both cases? Thanks
  
• Work out? The electric field strength at a point 4cm from source change is #100" N/C"#.what will be the electric field strength at distance of 2cm from the same change? Thanks
  
• Work out? Two identical charged bodies are 3 cm apart exert a force of #4 × 10^-4\ "N"# on each other. The charge on each body is_______? Thanks
  
• Which one is the result of volcanism? A)dyke B)fold mountain C) block mountain D)Rift valley Thanks
  
• True or false The graph of a polynomial function of degree n has at most n-1 turning point?
  
• True or false? -Any non-zero number raised to zero is one. Thanks
  
• True or false? -The graph of a polynomial function Have sharp corners and hole. Thanks
  
• True or false? -Exponential function are the inverse of logarithmic function. Thanks
  
• True or false? The Gradient between adjacent pairs of points are equal,the points are collinear. Thanks
  
• Filling in the black Questions? If two lines are perpendicular the product of their slope is equal to--------? Thanks
  
• What is the function of Eustachian tube? Thanks
  
• What is homeostasis?give one example Thanks
  
• Why do we call skin senses as general senses? Thanks
  
• What is the cause of goiter? Thanks
  
• What is the function of antidiuretic hormone? Thanks
  
• True or false? Aluminum is the third most abundant metal in the earth's crust. Thanks
  
• True or false? Aquaregia is a mixture of hydrochloric acid and sulphuric acid. Thanks
  
• True or false? During purification of copper, The impure copper serves as anode. Thanks
  
• True or false? Sulphur dioxide turns lime water milky. Thanks
  
• What are the four hormones that regulate the menstrual cycle? Thanks