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Chemistry
Page 70
Questions (96,992)
An alkali is a soluble base.
Is barium hydroxide an alkali?
1 answer
asked by
janice
377 views
Why is the carbonyl group in tert-butoxycarbonyl group (tBOC) less susceptible to attack from nucleophiles than the carbonyl
1 answer
asked by
Alice
431 views
How would you scale down an organic chemistry experiment? Would you have to know an expected percent yield to scale it down?
1 answer
asked by
Jason
342 views
Which element has a greater electroniegativity, Al or Ge. I wasn't sure, since Al was further up, but Ge was further right.
1 answer
asked by
Nicki
357 views
How could the following transformation could be carried out.
C6H5C=CH --> C6H5CH2CH20H I don't know how you would get a primary
1 answer
asked by
Beth
361 views
Determine the correct oxidation number assigned to carbon in CaCO3
1 answer
asked by
Samantha
335 views
An unknown was prepared with the concentration of 0.000520 M. A Beer's Law plot was prepared using the absorbance values from
1 answer
asked by
Joan
441 views
What would the two half reactions be for 2Na+1MgBr2 arrow 2NaBr + Mg? I don't know how to determine this, other than that you
1 answer
asked by
Peter
417 views
Every balanced equation is written so BLANK is/are conserved
atoms mass a and b None of the above I thought the answer would be
1 answer
asked by
Anne
385 views
I have to list all of the ions of zinc, the thing is, the only ion I could find was Zn^2+. I've googled "ions of zinc" but this
1 answer
asked by
Ericka
368 views
Why does CdCO3 have a significantly lower decomposition temperature than CaCO3, despite the similarity in the ionic radii of
1 answer
asked by
Alice
369 views
Why do amides require much harsher conditions for hydrolysis than esters?
I'm guessing amides are more stable for some reason,
1 answer
asked by
Alice
318 views
For Chemistry, I have to design a coin. What are some anti-counterfeiting measures I could use to prevent people from
1 answer
asked by
Aline
398 views
Another question on the subject of coins. We have to evaluate another group's metal choices. My friends' group chose gold for
1 answer
asked by
Aline
424 views
What is the heat of fusion of water?
1 answer
asked by
Amanda
434 views
Why are chemical equations balanced? Explain at the atomic level.
3 answers
asked by
Susan
387 views
"blank" mL of 6.0 M H2SO4 are needed to prepare 300 mL of 1.0 M H2SO4 solution.
its 49.8
1 answer
asked by
uci student
427 views
Which is the anode and which is the cathode when doing the electrochemistry:
Zn or I2/I- Cu or I2/I- Fe or I2/I- Ni or I2/I-
1 answer
asked by
Dave
310 views
What are the products of nitrogen dioxide and methane?
1 answer
asked by
Zac
289 views
What is the pH of the solution created by combining 11.40 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)?
with 8.00
1 answer
asked by
Lisa
395 views
I need help with the following problem: A fabric remnant from a burial site had a 14 C:12 C ratio of 0.838 of the original
1 answer
asked by
Sophie
369 views
We did a lab on fractional distillation and I am unsure what the three fractions were. I think the first one is ethanol, and the
1 answer
asked by
Christopher
331 views
What is the difference between the substance oxidized and the oxidizing agent?
1 answer
asked by
?
359 views
Calculate the mass ( g ) of the solute acetonitrile and the volume ( L ) of the solvent C6H6 that should be mixed to produce
3 answers
asked by
Tylor
370 views
I am not quite sure how to do this problem, it doesn't seem to fit into any of my given equations:
A gas has a volume of 35.5L
4 answers
asked by
Nick
429 views
Explain open and closed system with respect to equilibrum.
1 answer
asked by
Zac
364 views
What is the solubility of calcium cholride
3 answers
asked by
Saira
403 views
Are the words in brackets correct? If not, correct it.
1. Aldehydes and ketones are [less] polar than hydrocarbons. I think
4 answers
asked by
anonymous
426 views
N2H4(g) + H2(g) 2 NH3(g) H1 = –1876 kJ
3 H2(g) + N2(g) 2 NH3(g) H2 = –922 kJ The H f for the formation of hydrazine: 2 H2(g)
1 answer
asked by
Tylor
425 views
1. What is plastic bags composed of?
(polymers or something like that?) 2. What properties do they have? Thank you!
1 answer
asked by
anonymous
296 views
If the molecular mass for a chemical is 153.82 g/mol and the enthalpy of formation is -135 kJ/mol, the heat change will
1 answer
asked by
Linda
392 views
4-methyl-2-pentyne show tautomerization
1 answer
asked by
Laura
427 views
4-methyl-2-pentyne show tautomerization ? i know tautomerization is done with a double bond but this one has a triple bond
1 answer
asked by
Laura
336 views
1. List all the functional groups found in Levadopa.(Note: There is no typo for the word "Levadopa", I said that because when I
2 answers
asked by
anonymous
695 views
An acid is comprised of 0.2g hydrogen, 7.1g chlorine and 12.8g oxygen. What is the most likely formula for this acid.
4 answers
asked by
Coco
317 views
How many mL of an impure liquid CS2 mixture (density 1.26 gmL-1) which contains 93.0% of CS2 by mass, must be burned to obtain
1 answer
asked by
Duffy
427 views
Small chain alcohols have a warning label indicating that they are flammable, but what is mean by "small"? How many cabon atoms
4 answers
asked by
Anonymous
442 views
What is the solubility in water of salicylic acid at 25 degrees? I can only find it at 20 degrees.
4 answers
asked by
Sam
401 views
Which would react faster with MeI in aqueous solution: OH- or Et3N?
I know that the reaction in aqueous solution would be an Sn1
1 answer
asked by
Alice
446 views
When salt and water molecules attract, of what charge is the salt, and of what charge is the water? Thanks for explaining.
1 answer
asked by
Andre
324 views
Which stage of ionization usually produces more ions?
1 answer
asked by
Zach
403 views
This is the last one Dr Bob!
How much concentrated 18 M sulfuric acid is need to prepare 250 ml of a 6.0 M solution? Im stumped
1 answer
asked by
Alan
363 views
What does a covalent bond consist of?
Thanks!
1 answer
asked by
Zach
317 views
1. Which element would react more actively when placed in water to form strong base?
A. Potassium B. Magnesium C. Fluorine D.
5 answers
asked by
Anonymous
732 views
I have to decide whether these replacement reactions can happen.
1. K + NaNO3 What do you do when there are multiple elements?
1 answer
asked by
Narasaq
437 views
Does _Mg+_Ca(NO3) yields_______?
I got 2Mg +Ca yields (NO3)2+2MgCa. Is this correct? Thanks for explaining!
1 answer
asked by
Narasaq
437 views
I'm doing the single replacement reaction Mg +FeF3. Would it yield MgF3+Fe? What about the single replacement reaction Li+K2SO4?
1 answer
asked by
Narasaq
382 views
Would Mg+Ca(NO3)2 yield Mg(NO3)2)+Ca? Thank you for checking.
1 answer
asked by
Narasaq
306 views
How many atoms are there in 12 grams of Carbon?
12 grams 12.01 moles 6.02x10^23mol x x 1 gram 1 atom = 867.6024 Is this correct?
1 answer
asked by
Narasaq
384 views
How many moles of ethane does it take to produce 8112 KJ in the reaction 2 C2H6 + 7O2 yields 4 CO2 + 6 H2O + 3120 KJ? I got 8112
1 answer
asked by
Narasaq
376 views
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