Chemistry

Advanced redox reactions

I have 2 advanced redox reactions due, but Ive only learned how to work with simple redoxreactions. The reactions are as follows: S2O3(2-) + Cl2 --> SO4(2-) + Cl(-) (Beginning as a neutral environmen

Mass of air in the room it takes to fill the volume of your head

Im using 22 inches as the average circumference of a females head and estimating it to be roughly spherical. I converted inches to centimeters and calculated the volume to be 2,946.58 cm³ or 2.95 L. H

Draw the correct line structure of (Z)-2-bromo-3-methylhex-2-en.

Draw the correct line structure of(Z)-2-bromo-3-methylhex-2-en. (I dont know how to draw it, can anyone find a picture of it on the internet or something. Thanks)-.........CH3 .........l C--C=C--C--C-

Where does the source of energy come from in fusion and fission reactions

Basically, from mass. Okay, this gets kind of complicated.In nuclear fusion you have two light atomic nuclei slamming together to create a heavier nucleus.Energy and other by-products are released in

How to balance this chemical equation

Mg3N2 + H2O --> NH3 + Mg(OH)2 (the numbers are subscripts)-Mg3N2 + 6H2O --> 2NH3 + 3Mg(OH)2-Mg3N2 + _6_ H2O ->_2_ NH3 + _3_ Mg(OH)2 the numbers with underlines around are the one i added on.-Mg3N2 +

What colour is of petrol and why

Petrol is naturally a colourless liquid. But the refineries add dyes to the finished product. This is done for a variety of reasons, mainly to identify the product as their petrol, to differentiate di

Flask X contains 5dm3 of He at 12kPa and flask Y contains 10dm3 of Ne at 6kPa.If the flasks are connected ...

If the flask are connnected at constant temperature, what is the final pressure??-Hello you use the equation p1*V1 = p2*V2 --> p2 = p1*V1/V2 The final volume will be 15 L. So the (partial) pressure

Properties of Alkanes and Alkenes

May I know which of the above is.... 1) More flammable? 2) Burns with a smokier flame? Thank you :)-Its logical to expect gas with multiple bond to be more inflammable (that is the right word for com

Help me so I can study this

What mass, in grams, of chlorine gas (Cl2) is contained in a 12.5 liter tank at 27.0 degrees Celsius and 2.85 atmospheres? Show all of the work used to solve this problem. Please explain step by step

Is dry ice changing from a solid to gas a chemical or physical change

Im pretty sure its physical, but Id like someone to confirm that. Thanks!-Dry ice is made from carbon dioxide, and the change from a solid to a gas is just a physical change. there is no chemical acti

How are isotopes of an element similar? How are they different

similar because they behave identically chemically...they have the same number of protons. different because they have different numbers of neutrons.

What is the difference between atomic number and atomic mass number of an element

First of all, atomic mass number is an oxymoron.There is one value that is called atomic mass, and there is a completely different value that is called mass number.Granted, they will be approximately

Discuss the arrangement of elements in the periodic table.

it has something to do with the size of the atom i think number of valence electrons? consequently, it was grouped into metals, non metals,semi conductors?

Chemistry help needed, significant figures

How many significant figures are in each of the following. a) 1.700cm b) 350.00K c) 1.3x10(to the3rd) m/s And also when converting between temperatures are significant figures needed? For example

Dimensional analysis problem

kate weighs 2,789.44 ounces. how many mega-grams does she weigh? please explain how you got your answer. the answer i got is 7.908 and im not sure if its right.-2,789.44 ounces ( 1 pound / 16 ounces)