State a balanced chemical equation depicting the formation

Reference no: EM13654854

Write a balanced chemical equation depicting the formation of one mole of CaCO3 from its elements in their standard states

Reference no: EM13654854

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Evaluate the mass of octane that must be burned : 2C8H18 + 25O2 = 16CO2+18H2O : DELTA HEAT= -10942 KJ, calculate the mass of octane that must be burned to produce 12MJ of heat

Between thetwo radio waves produced by this path difference : Consider two antennas separated by 14.0 mthat radiate in phase at 85 MHz. Areceiver placed 150 m from both antennas measures an intensity/0. The receiver is moved so that it is2.2 m closer to one antenna than the other.

What is the magnification due to the two-lens system : If a diverging lens of focal length -69.0 cm is then placed 25.0cm from the first lens on the opposite side of the lens from the object, What is the magnification due to the two-lens system

Explain hcl is a much stronger acid than ch3cooh : HCl is a much stronger acid than CH3COOH. However, when 5 drops of 0.10 M HCl is added to 20 drops of a buffer solution that is 0.10 M CH3COOH and 0.10 M CH3CO2^- only a very small change in pH occurs. Explain.

State a balanced chemical equation depicting the formation : Write a balanced chemical equation depicting the formation of one mole of CaCO3 from its elements in their standard states

Evaluate the number of grams of mg needed for the reaction : Calculate the number of grams of Mg needed for this reaction to release enough energy to increase the temperature of 73 mL of water from 29 deg. celcius to 75 deg. celcius.

Evaluate what is the gas pressure : A nebula?a region of the galaxy where new stars areforming?contains a very tenuous gas with 128 atoms/cm3. What is the gas pressure

Orbital of a lunched satellite around the earth is circular : Assume the orbital of a lunched satellite around the earth is circular. Show that there is only one speed that a satellite can have if the satellite is to remain in an orbit with a fixed radius and it does not depend on the mass of the satellite.

Obtain what is the weight of the rod : On a part-time job, you are asked to bring a cylindrical iron rod of length 89.4 cm and diameter 2.20 cm from a storage room to a machinist. Calculate the weight of the rod, w in newtons

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