Chemistry

What does it mean to hybridize an atøm

I read a question on this, and it was concerning electron orbitals. What does it mean when an atoms hybridize?-Hybridization refers to the combination of two or more atomic orbitals into a set of hybr

What is chemistry, is it easy? How can i study well chemistry? Do you use math

Heeey, Next year i will course my freshmen year, and i will take chemistry. I had never had chemistry before, i only had biology and physics. I dont want to fail in chemistry, so i want to know in a

Does NH2- have a dipole moment and how do you know

Thanks.-yes it does NH2- has 3 electrons that are not bound to any other element •• N¯ --H H the extra, unbound electron adds to the dipole of NH3 already present with the nonbonding pair of electron

How can you have water with no oxygen

I have my pharmasist this question too she didnt know either.I have watched numerous deep water exploration shows where they talked about water that was so deep that there was no oxygen...water is H2O

Organic Chemistry Help (expected product)

What is the expected product from the addition of HBr to CH3-CH2-CH=CH2?-The pi bond is the weakest, so it is the one that will be broken in this reaction. Markovnikovs Rule does apply in this example

Gas Law Chemistry Problem Help!

The mean molar mass of the atmosphere at the surface of Titan, Saturns largest moon, is 28.6 g/mol. The surface temperature is 95 K and the pressure is 1.6 atm. Assuming ideal behavior, calculate the

Why is it important to quote temperature of the reaction solution in chemical kinetics

Because chem kinetics is a branch of science that tells us the rate of a particular reaction at a certain temperature. Change in temperature changes the rate and hence knowing the rate is vitally impo

Help with chemistry real quick, 2 probs!

1) When 25.23 g of methanol (CH3OH) froze, 4.01 kJ of heat was released. What is the enthalpy of fusion of methanol? (part 1) 1. 23.2 kJ/mol 2. 11.2 kJ/mol 3. 5.09 kJ/mol 4. 2.16 kJ/mol 5. 16.4 kJ/mol

What size container do you need to hold 0.0459 mol of N2 gas a STP

it a Chemistry question i dont really get how to solve it-Use PV = nrt P =1 n = 0.0459 R = 0.0821 T = 273 solve for V in liters-chemistra is superduper confusingReport Abuse

A chemistry 11 question!!

I really need help a question from my Chem 11 worksheet....here is some background info first: Okay this is the equation CaCl2(aq) + Na2CO3(aq) => CaCO3 + 2NaCl(aq) there is 2.61696 g of Na2CO3 and 1.

PLEAAEESE HELP!! its due 2morrow

ionic compounds form from ions of ___and ___ elements. they are __(what state) at room temperature. when they.? dissolve in water, they break apart into their____. this alows the solution to conduct__

I have two questions about Chemistry! 10 points to first right answer! PLEASE HELP

1.] Which of the following best represents potential energy being converted to kinetic energy? A. The chemical energy in a battery is used to power a radio. B. The movement of wind turns a windmill t

Determine the pH of a 2.5x10^-6M HNO3 solution can someone please help me with chemistry homework

Determine the pH of a 2.5x10^-6M HNO3 solution Determine the pH of a 2.0x106-2M Sr(OH)2 solution.-pH = -log[H+] Determine the pH of a 2.5x10^-6M HNO3 solution= -log[2.5x10^-6] or just under 6 Determ

Easy 10 points! Which of the following would make the best buffer system and why

a) KCL and HCL b) NaOH and H2O c) CH3CHOHCOOH and NACH3CHOHCOO d) NaNO3 and HNO3-The answer here is C. The reason is that a buffer (a solution that resists changes in pH) is most effective when it is

What is the equation for the following decay reaction

Electron capture by rubidium-82-37/82Rb + -1/0 e --> 36/82Kr + neutrino electron capture causes a proton to become a neutron. the atomic number decreases by one while the mass stays the same