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The density of solutions are assumed to be the same as water. If the density of all 3 solutions was actually 1.1 g/mL, how would the heat of the reaction be affected?
Two planes take off at the same time from an airport. The first plane is flying at 244 miles per hour on a course of 130.0 degrees. The second plane is flying in the direction 165.0 degrees at 356 m
The balloon rises to an altitude of 20,000 m where atmospheric pressure is 65 mmhg and the temperautre is 210k. What is the volume of the balloon at 20,000m?
In January 2000 you began a one-year study of tuberculosis (TB) in a subsidized housing community in the Lower East Side of New York City. What was the cumulative incidence of TB over the year?
A weather radar system scans a circular area of radius 45km. The beam rotates 6 complete revolutions in one minute. How much area (in square km) is swept through in 3 seconds.
Directions: write an equation of the conic section. Parabola with vertex at (5,3) and directrix y=6.
Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients.
Question: Hydrogen peroxide H2O2 decomposes according to the equation: H2O2(liquid) = H2O (liquid) + 1/2O2 (g) From the following data, calculate the value of delta G for this reaction at 25 degrees C
The sum of the circumference and height of a cylinder is 20cm. What is the surface area of the cylinder?
A system at equilibrium or striving to reach equilibrium responds in a way that best accommodates or reduces any stress placed upon it. What is this known as in chemistry?
A blobsled starts from rest and slides down a frictionless 7.5 deree slope. What's its final speed after 25 seconds?
Find the value of tan (a-B) if cos a = -3/5, and B = 5/13, 90degrees < a < 180degrees, and 90degrees < B < 180degrees?
What is the equation for the inverse of y = Cos x + 3?
Question: Typically an adult will inhale 2.1 L of air per breath. What mass of ozone is taken into the lungs per breath by an adult breathing air containing 1.57 x 10^-4 micro(ug) grams of ozone per
A chocolate caramel pecan piece of candy contains 115 food calories (CaI). If the heat energy contained in the piece of candy were transferred to 53.5 kg of water at 25.0 C, what would be the final
Critically analyse the effects of having a heart failure and cognitive impairment and the impact of the nurses' ability to promote the health and wellbeing of the person.
What volume of CO2 gas is produced by the complete combustion of 2.6L (C3H8) gas? Assume all gas volumes are measured at the same temperature and pressure.
Describe the role of the citric acid cycle as a central metabolic mechanism. Explain what happens to the cells' abilities to oxidize acetyl CoA when intermediates of the cycle are drained off for am
What kind of biotechnology may be considered to treat approximately 3000 cubic yards of VOC contaminated soil on a two-acre site fairly quickly and why? When can the biodegradation process get to be
A bottle of vinegar has an acetic acid concentration of 0.78M. What are the equilibrium concentrations, the pH and percent ionization of the acetic acid?
Distances D between the car and the border are recorded in the table for various elapsed times t. Find a linear function D that models these data.
Given a stock solution of a food dye having a concentration of 1.0 x 10-5 and an absorbance of 0.700. If a new solution is made by diluting exactly 10.0 mL of the solution with exactly 15.4 mL of di
Examine a particular application of thin film technology. Optical coatings(UVblock, anti---reflection, reflective...). Friction and wear coatings
Sn2 reactions occur at different rates depending on the structure of the substrate in the reaction. Would an Sn2 reaction occur at a faster rate on a primary or a tertiary substrate ? Briefly, Expla
Akyl halides tend to be relatively non-polar covalent compounds. They dissolve in non-polar solvents but are insoluble in water.