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211 Questions about chemistry
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Q:

Did HDCH chemistry properly prepare you for the ...

Did HDCH chemistry properly prepare you for the school you attended?
Submitted by Leon Hordyk   2 years ago.
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Q:

How can I make great-tasting, low-calorie, grape ...

How can I make great-tasting, low-calorie, grape-flavored water at home?
Submitted by yorkie   1 year ago.
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Q:

Organometallic chemistry, electron counting

How many electrons does a dmpe ligand donate to a metal center, and what is it's anionic charge?
Submitted by corey weber   1 year ago.
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Q:

is NH4Cl soluble at all temps, and if not ...

is NH4Cl soluble at all temps, and if not exolain based on enthalpy and entropy changes
Submitted by dster   2 years ago.
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Q:

Kerosene

How can I estimate the olefin content in kerosene having ~4% olefin and ~22% aromatic?
Submitted by MIN   2 years ago.
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Q:

How do you find the pH of .015 M NaOH?

how do you find the pH of .015 M NaOH?
Submitted by Aoliver   1 year ago.
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Q:

Equation:ethanol (C2H6O) + 3O2 --> 2CO2 + 3H2O So ...

Equation:ethanol (C2H6O) + 3O2 --> 2CO2 + 3H2O So how do you get 90.1 g of water (H2O) when 3.00 mol ethanol and 5.00 mol O2 ...
Submitted by amatics   1 year ago.
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Q:

A radio station uses a 99.5mHz calculate the ...

a radio station uses a 99.5mHz calculate the wavelength of the corresponding radial waves
Submitted by chris   1 year ago.
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Q:

Elements in the noble gases tend to be A. very ...

Elements in the noble gases tend to be A. very reactive B. stable C. strong D. Heavy
Submitted by Iron Man   1 year ago.
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Q:

Chemistry Help

what is the standard molar enthalpy of formation for sodium aluminate(NaAlO2)in KJ mol-1?
Submitted by chemstudent   1 year ago.
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Q:

Why were they chosen in levels in an atom

why is the letters S P D F chosen for sublevels
Submitted by paigeneedshelp   1 year ago.
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Q:

A 21.0gram sample of iron at 58.5degrees C has 100 ...

A 21.0gram sample of iron at 58.5degrees C has 100.j of heat removed from it. What is the new temp?
Submitted by Tina   1 year ago.
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Q:

What is the evidence of a chemical reaction of ...

what is the evidence of a chemical reaction of butane
Submitted by chris   1 year ago.
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Q:

What is the formula for aqueous Mg SO3 and HI

what is the formula for aqueous Mg SO3 and HI
Submitted by Nina   10 months ago.
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Q:

Chemistry question?

I have a sicence question: chemical reaction between an object and a chemical from its environment is called what?
Submitted by igd101   10 months ago.
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Q:

What is the lewis dot configuration of Ca2H4

what is the lewis dot configuration of Ca2H4
Submitted by shero   10 months ago.
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Q:

Need help URGENT!

what is the significance of wave motion
Submitted by mee   1 year ago.
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Q:

Copper Analysis

Copper Analysis by Spectroscopy? Weight of copper standard.... .2751g Dissolve it in a slight excess of concentrated nitric ...
Submitted by Christina   1 year ago.
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Q:

Which mass of sodium iodide is contained in 250mL ...

Which mass of sodium iodide is contained in 250mL of a .500 M solution?
Submitted by hrh   11 months ago.
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Q:

A phospahte ion solution of known concentration ...

A phospahte ion solution of known concentration was made for calibrating a spectrophotometer. A 0.50mL samplke was abtained of ...
Submitted by chemstudent   11 months ago.
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