In order to synthesise 3-bromonitrobenzene from benzene, which of the
following sets of conditions are necessary?
a. i) H2SO4/HNO3 (heat is necessary) followed by ii) Br2/FeBr3 (further heat requi
The dissolution of ammonium nitrate is an endothermic dissolution. This means, the energy required to break the bond of the ammonium nitrate is greater than energy released when bonds are formed withi
I am really stuck so please help.
Firstly, am I right: The metal that reacts the fastest is potassium. The metal that reacts the slowest is lithium.
Secondly, if you leave a piece of silver and a pi
I have a lab where we got a florescence decay curve over time using a oscilloscope. Now I have to determine 1/tau using the decay. But I dont know how. Is it only the slope of the initial decay. I kno
Hi, I answered all of my questions on my worksheet but there are two questions that Im a bit iffy about...can you help me with them?
what are the two categories used to classify properties of matter?
calculate the weight of copper in the Cu(NH3)4SO4 H20 you made.
Mass of Cu(NH3)4SO4 H20 = 0.1140g-1 mole of Cu(NH3)4SO4 H20=250.05g/ mol
250.05 g Cu(NH3)4SO4 H20/63.55g Cu
0.1140g(63.55/250.05)=.
The gas molar volume is 24dm3 at rtp. Air is 20% oxygen. What is the minimum value for complete combustion of 2.4dm3 of methane?-The combustion formula is CH4 + 2O2---> CO2 + 2H2O.You need 2 moles of
how do u do thiss?
calculate wavelengh of an FM radio station with a frequency of 103.1 mHz-frequency and wavelength are two wave properties, which are related by the following equation:
c = λv
whe
can u tell me the uses of neon i need it urgently-Neon is often used in advertising signs. It produces a bright reddish-orange color. Some other lights with different colors are sometimes called neon
If someone could show me step by step, it would be greatly appreciated!
A 20-mg strip of Magnesium metal reacts in 5.0 mL of 4.0 M HCl over a given time period. Evaluate the mol Mg / mol HCl ratio fo
a 32.4 g sample of an alloy of Mg and Al produces 1.66mol of H2 gas when added with HCl, what percentage of the alloy, by mass, is Mg??
The equations for the reactions are:
Mg + 2 HCl --> MgCl2 + H2
I think its ice but my prof wouldnt put something like that on a huge test tomorrow...-Its ice. Thats the solid form of water, I dont think its a trick question. Unless he wants you to think he wouldn
True or false? To prepare 20.0 mL of a 2.00 M solution of hydrochloric acid from a 10.0 M stock solution, you should take 4.00 mL of the stock solution and add 20.0 mL of water. If true, verify this w
Help please, Thank you!-The atomic number also equals the number of electrons. Subtracting the atomic mass from the atomic number will give you the number of neutrons also.-number of electrons
Commercial brass, an alloy of Zn and Cu, reacts with hydrochloric acid as follows:
Zn(s) + 2HCl(aq) -----> ZnCl(subscript 2)(aq) + H(sub. 2)(g)
( Cu does not react with HCl.) When 0.5065g of a certa
