Solution Station
Home
Search
Login
Search
Chemistry
Chemistry
High School
assuming the dielectric constant of butyl acetate and ethyl acetate is near equal, which intermolecular force is primarily responsible for the higher equilibrium vapor pressure of ethyl acetate?
Chemistry
High School
according to the phase diagram below a sample of water exists in two phas w at a pressure of 1 atm and a temperature of 0C
Chemistry
High School
answer the following questions to determine the structure of compound a. a. the molecular formula of compound a is c10h12o. determine the number of rings or double bonds (you cant distinguish between the two yet) present in compound a.
Chemistry
College
Predict the missing componentin the nuclear equation.209/84 Po 205/82 Pb + X
Chemistry
High School
Which two gas samples contain equal numbers of atoms?(A) helium and neon(B) helium and argon(C) neon and argon(D) neon and krypton
Chemistry
High School
in your experiment, first a solution of sodium carbonate and water was used to extract caffeine from the tea. then caffeine was extracted from this solution using an organic solvent. why was the organic solvent not used directly to extract caffeine from tea? group of answer choices caffeine is only soluble in water caffeine is present in the form of a partial ionic complex in tea caffeine will sublimate if extracted directly with methylene chloride or ethyl acetate from tea caffeine is not soluble in methylene chloride or ethyl acetate (organic solvents)
Chemistry
College
Which substance contains particles with the highest average kinetic energy? A. 1 kilogram of ice B. 1 liter of water C. 1 liter of water vapor D. 1 kilogram of snow
Chemistry
High School
How many milliliters of [tex]H_{2}[/tex] gas at STP are required to fully hydrogenate 1.68 g of [tex]C_{6} H_{8}N_{2}[/tex] (adiponitrile) according to the following hydrogenation reaction scheme?[tex]C_{6}H_{8}N_{2}(l) + 4H_{2}(g)[/tex] [tex]C_{6} H_{16}N_{2}(s)[/tex]
Chemistry
High School
around each indicated atom in the organic structure, determine the expected angle. large organic molecule with angles indicated. angle a is a h-n-c angle; the nitrogen has three bonds and a lone pair. angle b is a h-o-c bond; the oxygen has two bonds and two lone pairs. angle c is a n-c-c bond; the central c has a one triple bond and one single bond. angle d is a h-c-h bond; the carbon has four bonds. angle e is a h-c-c bond; the central carbon has one double bond and two single bonds.
Chemistry
High School
DOO Point BO Point CAWhere is the total mechanical energy greatest?O Point AO Point DO Same for all pointsB
Chemistry
College
(4.4) Which reactant is in excess and what quantity (in moles) are in excess after the acid-basemeutralization reaction of 250 mL of 0.127 M sulfuric acid with 0.200 L of 0.254 M NaOH?HSO4) +2 NaOH NaSO4) + 2 HO
Chemistry
High School
60 POINTS! All atoms want 8 valence electrons. If metals lose to get to eight and nonmetals gain to get to 8, what would the charge be in each column started by the following elements? Include the +/-. Charge Hydrogen:Beryllium:Boron:Carbon:Charge Nitrogen:Oxygen:Fluorine:Neon:
Chemistry
College
A group of similar tissues that perform a specific function is called _______an organa cella systeman organism
Chemistry
High School
What atom matches this electron configuration?1s22s22p63s2Magnesium Lithium Sulfur Chlorine
Chemistry
High School
What trend does the reactivity of most nonmetals show in a periodic table, excluding the noble gases?random changes without any trends on the periodic tablechanges according to trends on the periodic tableincreases from left to right across the periodic tabledecreases from left to right across the periodic table
Chemistry
High School
We can use the equation f = c/ to relate frequency (f), speed of light (c), and wavelength () together. Note: c is a constant (the speed of light) and is equal to 3.00 x 108 m/s1. Fill in the table belowf = c/ c = 3.00 x 108 m/s
Chemistry
College
When molecules in a substance vibrate faster and faster, what happens to the temperature of the substance?
Chemistry
High School
Two different cars, the Model S and Model T, use different substances in their engines. The image above shows the two substances. At room temperature, both substances are liquids. A car mechanic transferred the same amount of energy out of the two containers, but only one substance changed phase. Which cars substance changed phase, and how did it change?
Chemistry
High School
the the atomic radius of helium in m and nm
Chemistry
High School
You have a solution that contains 100 ml of 1. 5 m potassium carbonate and another 100 ml solution that contains 1. 0 m fecl2 and 2. 0 m nabr. When you mix the two solutions together to form a precipitate. What is the precipitate and how much is formed assuming the insoluble product precipitates completely?.
Chemistry
College
23.When balancing a chemical equation, one uses all of the following principals except...Select one:a. The number of atoms of each element on the reactant side of the equation must equal the number of atoms of each element on the product side of the equation.b. Subscripts in a formula may be changed so that the equation is balanced.c. The coefficients for the reactants and products may be changed to balance the equation.d. The law of conservation of matter must be obeyed.
Chemistry
High School
If one electron is removed from sodium during a reaction, which energy level becomes the valence shell?
Chemistry
College
What volume, in liters, is occupied by 1.5 x 1023 atoms of argon gas (Ar) at STP?
Chemistry
College
how many moles of sulfur dioxide are needed to form 2.31 moles of sulfur trioxide
« Previous
Page 2
Next »