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Vector A has a magnitude of 8.00 units and makes an angle 45 degrees with the positive x-axis. Vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods, find (a) the vector sum A+B and (b) the vector difference A-B.
A solution is prepared by mixing 87.0 mL of 5.00 M HCl and 36.0 mL of 8.00 M HNO3. Water is then added until the final volume is 1.00 L. Calculate [H+ ], [OH - ], and the pH for this solution.
It is important that the flask used for molar mass determination is completly dry before adding volatile liquid unknown to it.why? what would happen to any droplets of wash-water remaining in the flask when the temperature of the flask is raised t..
How can you calculate the quantitative precipitation of barium in a solid mixture of sodium chloride and barium chloride
The pH after adding 5.0mL, 10.0mL, 15.0mL, 20.0mL (keeps increasing by 5)... 50mL of KOH aqueous solution to the 50.0 mL sample of the HF solution.
Enzymes in the human liver catalyze a large number of reactions that degrade ingested toxic chemicals. By what factor is the rate of a detoxification reaction changed
Explain what is the condensed electron configuration of Pb+2. Take out of the configuration. Is it [Xe] 4f14 5d10 or do [Xe]6s2 4f14 5d10?
A hydrogen atom in the ground state absorbs a photon of wavelength 95.0 nm.
Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
discuss in detail the healthcare applications of chemical reactions. which chemical reactions would you consider to be
An atomic beam is intended to function with (a) cadmium, (b) mercury. The source is an oven maintained at 380K with a small slit of dimensions 1.0cm x 1.0 x 10-3cm. Explain the vapor pressure of cadmium is 0.13 P and that of mercury is 12 Pa at th..
Write a 750- to 1000-word paper comparing and contrasting switches, routers, and gateways. Include the difference between a layer 2 switch and a layer 3 switch and explain how a layer 3 switch differs from a router.Include diagrams illustrating the d..
The reaction: 2 HI → H2 + I2, is second order and the rate constant at 800 K is 9.70 × 10-2 M-1 s-1. How long will it take for 8.00 × 10-2 mol/L of HI to decrease to one-fourth of its initial concentration.
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