chemistry! URGENT

59,905 results, page 43

Chemistry

What are the raw materials for polyethene and polystyrene?

Chemistry

Is sulfuric acid ionic or covalent?

Chemistry

How is magnesium formed (detailed answer)

chemistry

how do you determine the percent by mass of an element?

chemistry

At what temperature (in ) does acetone have = 102

Chemistry

how do you find the molar volume of a gas?

chemistry

Is hexane and ethylene chloride miscible? Why?

Chemistry

How many significant figures are there in 0.00236 I think its 5, anyone can help

Chemistry

What is the representative particle for a salt, nacl2?

chemistry

what are indicators of strong intermolecular forces?

chemistry

What is the percent composition for Lucky Charms?

chemistry

give a definition of ionic bonding

Organic Chemistry

What is the chemical name for C7H13O?

chemistry

how do reciprocating heat engines work?

Chemistry

calculate the number of atoms in 31.5g of cadmium

Chemistry

How many electrons and how many protons are in the ion Cr6+?

chemistry

Convert 12 fluid ounces liters. (1 fl. oz = 29.57 cm^3)

chemistry

How many neon atoms are there in five moles?

chemistry

What is the density of PCl5 gas at STP?

Honors Chemistry

I got 206.67 g Fe, DrBob222

chemistry

How many mole are present in 5.03g gold

Chemistry

What mass of CO2 could be absorbed by 1.34 g of CaO?

Chemistry

what mass of sodium chloride contains 4.59*10^24

Chemistry

Calculate the pH of a 0.10 M solution of barium hydroxide, Ba(OH)2.

chemistry

how to make 750ml of 1.5 m solution of naoh

chemistry

how do I convert 17.4 cubic ft into liters?

Chemistry

where does the n come from in a compound such as n-butane?

chemistry 1

A ^H corresponds to an process is it negative, endothermic

Chemistry

How does the process of chromium electroplating work?

Chemistry

How does the process of chromium electroplating work?

chemistry

why is the law of definite composition important?

Chemistry

Calculate the decrease in temperature when 2.00 L at 20.0 C is compressed to 1.00 L

chemistry

how to write the oxidation number for CL4

Chemistry

Which test for iron(II) ions is conclusive?

Chemistry

How does the Diethylacetal impurity arise in fermentation?

Chemistry

Is Al(OH)3 soluble in KOH or K2C2O4•3H2O?

Chemistry

Determine the [OH^-] of a solution that is 0.145 M in CO3^2-.

chemistry

What is the of an aqueous solution that is 0.128 M NH4Cl ?

Chemistry

Is the compound C2H3Cl polar or nonpolar and why?

Chemistry

Why is it important for you to know how to separate solids from liquids?

chemistry

How many millimoles of H+ are present in 1.00 L of 1.24 M CF3CO2H solution?

chemistry

what is the volume of 62.3 g of nitrogen gas at STP

Chemistry

What happens to the temperature of a gas when it is compressed?

College Chemistry

How do acids and bases react?

Chemistry

How do I decide whether something is polar or not?

chemistry

what is the relationship between pH and H+ and how do i show examples?

Chemistry

What is the amount in moles of 3.55g of zinc(Zn)

chemistry

What is plastic #7 used for? How is it related to cancer?

chemistry

How can u determine the molar mass of a compound?

chemistry

In the compound BACO3, what is the strongest IMF?

chemistry

in balancing I3- --- I- + IO3- wat is reduced to what

chemistry

in balancing I3- --- I- + IO3- wat is reduced to what

chemistry

If 30.0 mL of 4.8 10-2 M HBr is added to 21.5 mL of 3.6 10-2 M NaOH, what is the pH of the solution?

chemistry

What is the pH of a .10M (CH3)3N solution? Kb=6.40e-5

chemistry

How do you make a 100mL solution of 1.50 M of NaCl.

Chemistry

How do you solve for the experimental pKa when doing a titration?

chemistry

convert 353 torr to atm

Chemistry

Will or will no accor this reaction? Na + Al2(SO4)3

Chemistry

SO3, CaCO3, Ag2S, and Zn(OH)2. Is this right?

chemistry

how to write a mass blanc of cacl2

Chemistry

Why can't benzene dissolve sodium chloride?

chemistry

what does the arrow in a chemical equation mean?

chemistry

does a solution have to involve a liquid?

Chemistry

what are the products of the reaction? Cu3PO4 + HCl =

Chemistry

what are the products of the reaction? Cu3PO4 + HCl =

chemistry

what volume of O2 at STP is needed to react with 4.52 g of K

Chemistry

How many moles of potassium chromate were in 15 mL of K2CrO4?

Chemistry

How many grams of potassium chromate are in K2CrO4?

Chemistry

What was the molarity of K2CrO4? M = moles/liter

Chemistry

What is the pH of a 0.001 M formic acid solution? Ka = 1.8 x 10^-4. I don't know what to do!

chemistry

What is the mass of 1 mL of water at 4 deg Celsius?

Chemistry

What is the structural formula for 1-bromo-3,4-dimethylheptane

chemistry

How many total atoms are in 1.0 moles of H2O ?

chemistry

Find the molar mass of AlCl3

chemistry

How many moles are represented by 16.0g of ethanol, C2H5OH?

chemistry

Find the molar mass of Hg2Cl2

chemistry

what is the molar mass of the copper oxide?

chemistry

what is the explanation of the pure acetic acid?

chemistry

what is the explanation of 0.01M acetic acid ?

chemistry

Why are optical isomers not found for CH2ClBr?

chemistry

Why are optical isomers not found for CH2ClBr?

Chemistry

How do you find the density of Uranium Hexafloride?

chemistry

how many atoms are contained in 12g of H2O2 ?

chemistry

how many moles of Ba(OH)2 are present in 225ml of 0.400 Ba(OH)2

chemistry

mole ratio of (CaSO4)2.H2O

chemistry

mole ratio of CaSO4.2H2O

Chemistry

mole ratio of Na2SO4.10H2O

chemistry

what product will form from dehydration of 2-methylcyclohexanol?

chemistry

for oxidation number of Fe(CO)5 I don't understand why Fe is zero

chemistry

what is the symbol for extreme temperature in lab

Chemistry

What is the difference between inference and observation?

chemistry

How can you tell if an acid is ionic or covalent?

Chemistry

Please explain the process of diffusion.

chemistry

28.66ml(.7857 g/cm cubed)= meters

Chemistry

why is MgCI salt likely to not exist?

Chemistry

1.25 x10^-5g/ 0.75 moles = Not sure what the ^ stands for

chemistry

oxidation state of nitrogen in n2h4

chemistry

oxidation state of nitrogen. no2-

chemistry

wat are the main uses of aluminium

chemistry

what is the density of 700 ml of a gas that has a mass of 7 g?

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