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You place element A into a graduated cylinder and it displaces 5.5 mL of water. You weigh it on an electronic balance and it weighs 25 g. What is the density of element A?
what would the major product be of the reaction of 1 mole of 34-dibromoheptane with 1 mole of koh in ethylene glycol?
What is the formula of this molecule. Assume that the hydrocarbon acts like an ideal gas.
canadian 10cent and 25cent coins are made of pure nickelwhich has a density of 8.902 gcm3. suppose each dimeweighs 2.14
Question- a) Explain three conditions that are present in both electron transport in the mitochondrion and photosynthesis in the chloroplast. B) Explain the different roles of oxygen (O2) in both mitochondrion and chloroplast.
what tempreture must 0.040 moles of water vapor be heated in a 500ml flask before the pressure in the flask becomes 2 atm.
Why must we the wavelength bet set to 447nm when the FeSCN2+ solution is an orange-brown colour
find the volume of oxygen gas required to react completely with iron.1.calculate the volume of oxygen gas at stp that
The angular momentum quantum number for the two highest energy valence electrons in an atom of lead is
The solutions mixed together are 53.6 mL of 0.129 M hydrochloric acid, 104.1 mL of 0.215 M of nitric acid, 501.5 mL of 0.0126 M calcium hydroxide, and 201.0 mL of 0.122 M rubidium hydroxide. Did the acids and bases exactly neutralize each other?
The sweetener is tested in a bomb calorimeter to determine its energy content per gram. When 5.278 g of the sweetener are combusted in a calorimeter with a heat capacity of 17.63 kJ/°C a temperature increase of 1.82 °C is measured. What is the ene..
What is the concentration of H+ in 0.0025 M HNO3? What is the pH of this solution? What is the OH- concentration in this solution
How many molecules of oxygen react with 133 molecules of acetylene (HCCH) to produce carbon monoxide and water
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