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Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 175 N at a distance of 0.400 m from the hinges, and the second pushes at a distance of 0.450 m. What force must the second exert to keep the door from moving? Assume friction is negligible.
The BF3 molecule has one A'1, one A"2 and tow E' vibrations. Does this representation account for all of the normal mode fundamental vibrations for this molecule
At what temperature degrees C will xenon atoms have the same average speed that Cl2 molecules have at 25 degrees C
A block of metal has a width of 3.2 rm cm, a length of 17.1 rm cm, and height of 4.5 cm. Its mass is 1.5 kg. Calculate the density of the metal.
A metal sample weighing 124.10 g and at a temperature of 99.3 C was placed in 42.87 g of water in a calorimeter at 23.9 C. At equilibrium the temperature of the water and metal was 41.6 C.
A reagent bottle on the shelf labeled 0.5 M NaCl was used in place of the 0.5 M CaCl2. Assuming C2O42- to be in excess, what would be observed as a result of using this reagent in this test
As molecules move up a fractional distillation column. They condense and revaporize. During which of tese steps in the concentration of the more volatile compound of the mixture increased? Briefly explain.
To what volume should you dilute 150 mL of an 8.00 M CuCl_2 solution so that 55.0 mL of the diluted solution contains 5.9 g CuCl_2
the compound sucrose is commonly known as table sugar. the chemical formula of sucrose is C12H22O11. How many hydrogen atoms are resent in 1.50 x 10^-4 mol of sucrose
Question- A buffer soulton is created using 0.15 moles of salt NaM (B being the anion of the weak acid HB) and 50.0 ml of 2.0M acid HB (assume no change in volume).
How and where did the Periodic table become in existence? Also, how has the periodic table been beneficial to science in a chemistry manner?
What is the H3O+ concentration of the solution?
What is the boiling point of a solution produced by adding 510g of cane sugar (molar mass 342.3g/mol ) to 2.1kg of water. For each mole of nonvolatile solute, the boiling point of 1kg of water is raised 0.51 degrees celsius.
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