Answers created by Andy Wolff

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How do you balance $C o {(O H)}_{3} + H N O_{3} \to C o {(N O_{3})}_{3} + H_{2} O$ $Co(OH)_3 + HNO_3 -> Co(NO_3)_3 + H_2O$ ?
What do carbocations usually do?
What is the structure of an organic species that has a formula of $C_{9} H_{18}$ $C_9H_18$ in which ALL the hydrogens are equivalent?
Question #5621e
Question #76042
What is the relationship between atomic mass and mass number?
Why is 1,4-dichloroanthracene polar?
Neon has 10 protons and 10 electrons. How many additional electrons would it take to fill the outer (second) electron shell?
Question #c1228
What type of orbital is used with electrons in an orbital with $l = 3$ $l = 3$ ?
A sample of a gas having a volume of 1 L at 25 deg C and 1 atm pressure is subjected to a decrease in volume and an increase in temperature. What happens to the pressure of the gas?
What is the oxidation number of the $M n$ $Mn$ in $K M n O_{4}$ $KMnO_4$ ?
A $5 L$ $5 L$ container holds $5$ $5$ mol and $6$ $6$ mol of gasses A and B, respectively. Every three of molecules of gas B bind to two molecule of gas A and the reaction changes the temperature from $360^{o} K$ $360^oK$ to $210^{o} K$ $210 ^oK$ . By how much does the pressure change?
If a Tadalafil 10 mg/tab has a typical half life of 17.5 hours, how long will it take until the blood concentration of this dosage falls to 25% of its initial strength?
How do you write positron decay?
Suppose light travels 1.5 times faster in a vacuum than it does in glass. What is the index of refraction for glass?
Which set of the three quantum numbers (n, l, ml) corresponds to a 3d orbital?
If a substance has a half life of one million years, how much of its will be left after three million years? After four million years?
Question #748a3
The half-life of cesium-137 is 30.2 years. If the initial mass of a sample of cesium-137 is 1.00 g, how much will remain after 30.2 years?
How do you determine if a reaction is a fission or fusion reaction?
What is an acetyl group?
Can carbon-14 be used to determine the date of inorganic compounds?
Question #37c39
What is the temperature, in K, of 2.20 moles of gas occupying 3.5 L at 3.30 atm?
How much energy, in joules, must be absorbed if all the $O_{3}$ $O_3$ molecules in the sample of air are to dissociate? Assume that each photon absorbed causes one $O_{3}$ $O_3$ molecule to dissociate, and that the wavelength of the radiation is 254 nm.
In the equation $2 K C l O_{3} \to 2 K C I + 3 O_{2}$ $2KClO_3 -> 2KCI + 3O_2$ , how many moles of oxygen are produced when 5.05 m of $K C l O_{3}$ $KClO_3$ decompose completely?
How do nuclear charge and shielding effect the periodic trend and group trend of ionization energy?
Gold ions form complexes with cyanide ion according to the equation: ${Au}^{+} (a q) + 2 {CN}^{-} \to {[Au {(CN)}_{2}]}_{2}^{-}$ $"Au"^(+)(aq) + 2 "CN"^(-) -> ["Au"("CN")_2]^(-)$ ; $K_{f} = 2 \times 10^{38}$ $K_f = 2xx10^38$ What is the standard state free energy for this reaction?
The Calorie used on food labels is equal to how many calories?
The value of Ksp for Ni(OH)2(aq) is 6.0x10^-16. What is the molar concentration of nickel ions in a saturated pH=7.0 buffer solution? Assume the buffer is sufficiently strong that the pH does not change during equilibration.
If you mix salt into pure water what is this mixture considered?
Question #bb66f
Why are single bonds saturated?
Fires from combustible metals produce what type of fire?
Question #877df
What is alpha decay?
What is the molar mass of a gas that has a density of 1.18g/L at 25°C and 1 atm?
How do I find the percentage composition of Nitrogen in N_2O5?
How does electron configuration effect electronegativity?
Question #9d802
Question #6a833
Question #249e6
Question #25fad
How do ionic compounds conduct electricity in water?
Question #103ea
How many valence electrons does iron have?
Question #75f5c
Question #84bc6
What does nuclear chemistry involve?
Question #fbab1
How can atoms exceed the octet rule?
Why is it impossible to predict exactly where an electron is at a given moment?
Question #b171f
How does alpha decay change the nucleus of a radioactive atom?
A 23.0 g sample of I2(g) is sealed in a gas bottle having a volume of 500 mL. Some of the molecular I2(g) dissociates into iodine atoms and after a short time the following equilibrium is established. I2(g-->2I(g) For this system, Kc= 3.80 x 10^-5. What mass of I2(g) will be in the bottle when equilibrium is established?
When should I use the ideal gas law and not the combined gas law?
What is the difference between an atom and an element?