04/10/17

If all living organism are made up of cell then why not virus?
 I am asking this question because when they enter a cell they become living organism. And the cell theory states that all living organism are made up of cell.
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04/09/17

What volume of 5% LiCl and water needs to be added to the 50 mL of 0.65 M LiCl solution to make up 100 mL of 0.5 M LiCl?
You need to prepare 100 mL of a 0.5 M solution of LiCl. You have 50 mL of a 0.65 M LiCl solution and 20 mL of a 5% (w/v) LiCl solution. • Molar mass of LiCl = 42.39 g/mol • % (weight / volume)... more
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04/09/17

taken from an 8th grade public school exam in the year 1912:
sadly, I can't answer this.  Horrible refection on the state of america perhaps?  I am actually 74. anyway, here is the question:   A farmer bought his property for $2400.  He later sold the... more
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04/09/17

what is cytoplasm?
Its related to biology
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04/07/17

How much 1M HCl should I add to 100 mL H2O to lower its pH by 1?
It's for a Biology project- I need to have different pH of solutions, with my base point being water with a pH of 7, and then increments down to a pH of 3. I don't know how much HCl to add for each... more
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04/07/17

Limiting reactants
Liquid hexane CH3CH24CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. Suppose 2.6 g of hexane is mixed with 5.29 g of oxygen. Calculate the maximum... more
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04/07/17

Limiting Reactants
Suppose 49.4 g of hydrobromic acid is mixed with 30. g of sodium hydroxide. What is the maximum mass of sodium bromide that could be produced by the chemical reaction?
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04/07/17

Why is the acid always the electron withdrawing group and the base always the electron donating group?
i dont seem to understand can someone explain the anwser to me
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04/07/17

A bag of popcorn at a movie theater contains 3 1/4 cups of popcorn. If Sara buys 4 bags, how many cups of popcorn does she have?
A bag of popcorn at a movie theater contains 3 1/4 cups of popcorn. If Sara buys 4 bags, how many cups of popcorn does she have?         hurry i need this
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04/07/17

4 people can dig up a trench in 3 hours. How long will it take 9 people?
Please give the answer in mins
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04/07/17

A company installs a rectangular septic tank 20ft long by 5ft wide and 8ft deep. Calculate the capacity of the tank in gallons
I'm stuck on this problem 
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04/07/17

If a small amount of solid NH4Cl is added to the following equilibrium, _______.
If a small amount of solid NH4Cl is added to the following equilibrium, _______. FeCl39(aq)+3 NH4CNS(aq) → Fe(CNS)3 (AQ)+3NH4 Cl(aq) a.it decreases the formation of FeCl3(aq)b.equilibrium... more
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04/07/17

If a rectangle has an area of 16 and the width is 4 times the length, what is the perimeter?
I am doing corrections on a homework assignment and I have no idea how to do these word problems.
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04/07/17

what should be the reading after you adjust the pressure?
The pressure gauge on the injection molding has a reading of 760. Your quality team has ask you to decrease the pressure by 10 percent. whats the reading after pressure adjusted? (just an answer)
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04/07/17

if 567 people are going on to 9 train carts evenly how many people will be on each train cart
its for a math paper
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04/07/17

how long will it take 2 people 600 feet apart to meet, if both are are walking towards each other at a constant speed of 3mph?
just a small part of a much larger larger question
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04/06/17

what the heck does ka and kb and kw have in common
seriously i have no idea
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04/06/17

what the heck isa bronsted acid and base
help please
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04/06/17

what does someone mean when they say human emotions contriute to the standbye effect
please tell me why 
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04/06/17

whats the square root of 650.36
please show work if you can so i can understand it if not its ok i'll except just the anwser
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04/06/17

chicken can fly
okayyyyyyyyyyyyyyyyyyyyyyyyyyy
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04/06/17

60g of diatomic nitrogen are burned in the presence of oxygen to form nitrous dioxide. how much mass was used? how much nitrogen dioxide was produced?
no idea how to do this
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04/06/17

The balanced equation is CH4 + 2O2 ---> CO2 + 2H2O if 2.57 of O2 gas reacts with excess CH4 gas, how many grams of CO2 gas and H2O gas will be produced?
Chemistry questions 
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04/06/17

Electrochemistry Question
Manganese is used in the steelmaking process to produce a tough steel for use in earth-moving machinery. It is derived from pyrolusite ore, an impure form of manganese dioxide. To analyze an ore... more
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04/05/17

Solve for the correct number of moles (Show Work Please)
Equation: Zn + 2HCl = ZnCl2 + H2   Given: .15 mol Zn react
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