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The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles, What is the force between the two alpha particles
A tank having a volume of 1000 ft3 contains 22 lb of CO2, 46 lb of O2 and 154 lb of N2. What pressure will be indicated by a pressure gage attached to the tank if the gas is at ambient temperature (
A 2.770 g sample of a compound containing only carbon, hydrogen, and oxygen burns in excess oxygen to produce 4.06 g of CO2 and 1.66 g of H2O. Calculate the mass (in g) of C in the sample.
A particular fish tank filled with fresh water (n=1.33) has a coral reef sticker stuck to an exterior wall(outside of the tank). What is the index of refraction of the tank's walls
A light wave has a 670{\rm nm} wavelength in air. Its wavelength in a transparent solid is 420{\rm nm}. What is the light's frequency in the solid
The specific heat capacity of the solution produced was 4.20J/g*Celcius, and final temp reached was 34.91 degrees c. How much heat was produced by the dissolution
A person walks first at a constant speed of 5 m/s along a straight line from point A to point B, How much distance does the person cover on her trip
The equilibrium constant for the reaction H2(g) + I2(g) 2HI(g) is 62.5 at 800 K. What is the equilibrium concentration of I2 if at equilibrium [HI] = 0.22 M and [H2] = 0.10 M
A torsion pendulum is constructed of a copper rod of radius 3 mm and length 50 cm. what is the period of oscillation
what can you say about the relative buffering abilities of solutions( ranging pH 5-7) when they are challenged by acid
3.00×104 of 300 C steam at a pressure of 20.0 is cooled until it condenses. What is the volume of the liquid water
A 9.0×10-24-kg particle is vibrating with simple harmonic motion with a period of 1.9×10-5 s, Find the maximum displacement of the particle
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. How many electrons are there in 6.24 liters of water
Calculate d/dx cos(x) by using the chain rule and the trig identities and write tan(x); sec(x); csc(x); and cot(x) in terms of sin(x) and cos(x):
Can someone explain to me how you would determine the molecular orbital theory diagrams associated with butene and overall the basic concept behind molecular orbital theory and drawing diagrams asso
Compute the volume of the tank if the total pressure of the mixture is 44.08 psi at 86°F. What is the partial pressure of each constituent and the average molecular weight of the mixture
As you eat your way through a bag of chocolate chip cookies, you observe that each cookie is a circular disk with a diameter of 8.50 ± 0.02 \rm cm, Find the ratio of the diameter to the thick
A replace poker consists of a wrought iron rod, 50 cm long and 5 cm2 in cross-section, fused to a piece of cork 10 cm long, Estimate the temperature at the iron-cork boundary
A bolt is to be tightened with a torque of 8.0 Nm. what is the least amount of force you must exert
An element in its solid phase forms a cubic crystal lattice with mass density 7950 kg/m^3. What is the element's atomic mass number
Imagine two 5.0 g bags of protons, one at the earth's north pole and the other at the south pole. Calculate the gravitational attraction that each bag exerts on the other
A 0.2254g sample of naphthalene (C8H10, 128.16g/mol) was burned in a bomb calorimeter with a heat capacity of 2.18kJ/K and temperature increased by 4.16 Celcius, what is the molar enthalpy of combus
Write and balance the molecular equation and then give the ionic and net ionic equations for the neutralization reaction between NH3(aq) and H2SO4(aq).