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The carboxylic acid group of an amino acid has a pKa of approximately 2. However, carboxylic...
A uniform magnetic field is directed into the screen. There are two parallel conducting rails, running...
Consider the chemical equation. 4NH3+5O2⟶4NO+6H2O4NH3+5O2⟶4NO+6H2O When 26 g of ammonia burn in 26 g of oxygen,...
In the first recrystallization, after the solid has been dissolved in warm acetone, the solution is...
A 35 kg crate is at rest on the floor. A man attempts to push it...
The surface area of a ball is measured to be A = 45 cm2. A) Write...
Block 1 (3 kg) is located on the surface of a table. A hand pushes horizontally...
A fish swimming in a horizontal plane has velocity i = (4.00 + 1.00 ) m/s...
Will calcium fluoride precipitation when 135 mL of 0.315M calcium nitrate added to 265 mL of...
Iron reacts with oxygen at high temperatures to form iron(III) oxide. 4Fe(s)+3O2(g)⟶2Fe2O3(s)4Fe(s)+3O2(g)⟶2Fe2O3(s) Suppose 12.3 g12.3 g...
A steel wire is used to lift heavy object. The cable has a diameter of (5.25...
What are magnetic domains? How do they differ in nanoparticles vs macroparticles?
A buffer solution is prepared by mixing 50.0 mL of 0.300 M NH3(aq) with 50.0 mL...
A hollow sphere of radius 0.240 m, with rotational inertia I = 0.0920 kg·m2 about a...
How does the size of the particles affect their optical properties?
The principle of conservation of momentum a) states that it is impossible to change the momentum...
1) A general chemistry 2 student creates a solution which is prepared by adding 0.029 mol...
One last time, our dear stunt-owl (mass m) is again launched out of a cannon with...
Explain Ostwald ripening. How does it affect the final distribution of nanoparticles?
Explain Quantitative Analytical method for the removal of micro plastics from drinking water using biosensors as...
11. Proton theory of acids and bases of Bronsted-Lowry. Lewis theory.
A 2.00-mol sample of a diatomic ideal gas expands slowly and adiabatically from a pressure of...
Name the following complex salts: [Cu(NH3)4] (OH)2, [Fe(H2O )6] Cl3 and K2[Pt(OH)2Cl4].
An iPhone is thrown from the top of a building with an initial velocity of 27...
A compound contains only carbon, hydrogen, and oxygen. Combustion of 65.76 g of the compound yields...
3. The properties of water and aqueous solutions. The role of water and solutions in life.
A satellite of mass 180 kg is placed into Earth orbit at a height of 700 km above the surface....
Determine the magnitude of the force on an electron traveling 6.55×105 m/s horizontally to the east...
A laser that emits pulses of UV lasting 2.95 ns has a beam diameter of 4.05...
4. How the reaction conditions (T and P) should be changed in order to shift the...
3.Calculate the thermal effect of the reaction. What does it allow to predict? C3H8(gas) = C3H4...
For each reaction, identify the Bronsted-Lowry acid, the Bronsted-Lowry base, the conjugate acid, and the conjugate...
Air is pumped into a bicycle tire. The 41 moles of air initially in the tire...
1.how does my sister’s keeper film directed By Nick Cassavetes impact any economic and financial concerns...
A 34.00 mL sample of an H2SO4 solution of unknown concentration is titrated with a 0.1322...
A)A 2.9 kg block of wood sits on a table. A 0.0035 kg bullet, fired horizontally...
1-How many electrons flow through a point in a wire in3.00 s if there is a...
Is the structure of acetoaminophen similar to the structure of aspirin? Would acetaminophen give a positive...
A battery is connected purely in parallel to three capacitors of C1 = 6 micro-farads, C2...
Given the following variables, how long would it take a vehicle to go from point A...
1. explain why you will find more than one tube length (column of air) at which...
A 4.60 mLmL sample of an H3PO4H3PO4 solution of unknown concentration is titrated with a 1.050×10−2...
The relative strength of intermolecular forces as follows: hydrogen bonding>dipole-dipole>London dispersion Which of the following intermolecular...
at 150degrees celsius and 742 mm hg 500ml of vapor has a mass of 0.8365g. what...
A) Label the functional groups present in aspirin and acetaminophen (except the benzene ring). Would you...
The siren on an ambulance is emitting a sound whose frequency is 2450 Hz. The speed...
What is the balanced chemical equation of FeCl3 and KOH? Is this an acid-base reaction?
A spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. The inner...
phosgene (COCl2) decomposes in carbon monoxide and chlorine gas. A)write a balanced equation for this decompostion...
1. An air-plane has an effective wing surface area of 12.0 m² that is generating the...
7) Alice and Bob are sitting on opposite ends of a seesaw of length 1.8 m....
List the following molecules in order of increasing heat of combustion and explain why. A: 2,3,4-trimethyl-1,3-pentadiene...
A laser beam with wavelength λ = 550 nm hits a grating with n = 5500...
A 58-dB sound wave strikes an eardrum whose area is 5.0×10−5m2. The intensity of the reference...
While riding in a hot air balloon, which is steadily descending at a speed of 1.34...
1.Iodine-131 is administered orally in the form of NaI(aq) as a treatment for thyroid cancer. The...
Adjoining lengths of iron watermains are often connected with each other by means of a copper...
how many g of Fe3O2 (molecular weight: 159.70)are formed by the complete reaction of 6.75 moles...
compare the law conservation of momentum with the law of conservation of energy. Comment on meaning...
A square loop of wire with an area of 0.1 m2 enters a magnetic field going...
For the reaction A + B-> C, the rate constant at 315 oC is 5.0 x...
5)A series circuit consisted of R= 4.7?, L= 2.0 mH , 2200 µF is connected to...
8.00 g of aluminum at 200∘C and 19.0 g of copper are dropped into 44.0 cm3...
In civil aviation, a "standard turn" for level flight of a propeller-driven airplane is one in...
1.Explain how an organism like dolly the sheep was cloned. 2. Explain how our dna carries...
The distance between the object and the screen, see the Lens is located between them X,...
A wooden block with mass 1.65 kg is placed against a compressed spring at the bottom...
91) A lathe, initially at rest, accelerates at 0.60 rad/s^2 for 10 s, then runs at...
(a) A particular household uses a 2.2-kW heater 3.1 h/day ("on" time), four 98-W lightbulbs 5.1...
Propane (C3H8) is a component of natural gas and is used in domestic cooking and heating....
How do we define the direction of the magnetic field of Earth? What implication does this...
Why does the fourth ionization for Si NOT involve a core electron? Confused about ionizations of...
Three liquids that will not mix are poured into a cylindrical container. The volumes and densities...
A flowerpot falls off a windowsill and falls past the window below. You may ignore air...
In an experiment, a mass of 250 grams attached to one end of a spring can...
A particle is launched horizontally, close to the Earth’s surface, with initial speed v(0) = v0...
Momentum and Velocity A wagon with a mass of 150kg moves (forceless) with a velocity of...
A 14.0 V battery-operated bottle warmer heats 45.0 g of glass, 2.30 ? 102 g of...
How could i change a city temperature? Our teacher wants us to think about some fictional...
In order to determine the rate of photosynthesis (the conversion by plants of carbon dioxide and...
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