Questions LLC
Login
or
Sign Up
Ask a New Question
Chemistry
Page 80
Questions (97,996)
what are the products of the reaction?
Cu3PO4 + HCl =
1 answer
asked by
Jim
369 views
what are the products of the reaction?
Cu3PO4 + HCl =
1 answer
asked by
Jim
306 views
How much heat, in joules, is necessary to raise the temperature of a 3.5g piece of aluminum from 22 degrees C to 37 degrees C?
1 answer
asked by
Kieth
360 views
How much heat, in joules, is necessary to raise the temperature of a 3.5g piece of aluminum from 22 degrees C to 37 degrees C?
1 answer
asked by
Kieth
375 views
Ba-140 has a half life of 13.0 days. What fraction of a sample of Ba-140 will remain after 39 days?
A. 1/8th B. 1/16th C. 1/2th
1 answer
asked by
Charleze
388 views
The most abundant isotope of the element nobellum has a half-life of 58 minutes. After 174 minutes the sample has a mass of .300
1 answer
asked by
Lily
406 views
How much heat, in joules, is necessary to raise the temperature of a 3.5g piece of aluminum from 22 degrees C to 37 degrees C?
1 answer
asked by
Kieth
370 views
Explain why when you microwave a plate of steak and potatoes, the potatoes heat up first.
1 answer
asked by
Kaj
307 views
The substitution of a monosubstituted benzene is regioselective. If it
had been completely random, what would you expect the
1 answer
asked by
Norman
396 views
25g of a breakfast cereal contain 110 calories. How many calories are released per gram? Convert the answer above to joules.
1 answer
asked by
Anonymous
411 views
If you have 100 L of methane gas how many liters of carbon dioxide can you produce when you burn the gas?
1 answer
asked by
Kayla
474 views
Howm many moles of chromate ions must have been in K2CrO4?
1 answer
asked by
Ashley
349 views
How many moles of potassium chromate were in 15 mL of K2CrO4?
1 answer
asked by
Ashley
406 views
How many grams of potassium chromate are in K2CrO4?
1 answer
asked by
Ashley
422 views
Which of the following will be affected by the addition of a catalyst to a chemical reaction?
a. ÄGo b. the value of the reverse
1 answer
asked by
John
445 views
Please help-I need to give at least three examples of how heat, solutions,equillibrium, nuclear and organic chemistry are
1 answer
asked by
Aubrey
369 views
Please show step by step with answer
The equilibrium constant, Kc, for the equilibrium N2O4 (g) <---> 2NO2(g) is 4.6 x 10^-3 If
1 answer
asked by
Lynn
438 views
Why is this Alkene structure:
CH3 - CH = C - CH3 | Cl called 3, chloro - 2, butene and not 2, chloro - 2, butene? I thought that
1 answer
asked by
Jakob
418 views
Calculate triangle heat if 85.0 grams of SnO2 react in the following equation:
2SnO2 arrow 2SnO + O2 Please write the steps and
1 answer
asked by
Amy~
361 views
Please help-I need to give at least three examples of how heat, solutions,equillibrium, nuclear and organic chemistry are
1 answer
asked by
Aubrey
364 views
Balance the solutions of Fe2+
1 answer
asked by
Alleman
314 views
Please help-I need to give at least three examples of how heat, solutions,equillibrium, nuclear and organic chemistry are
1 answer
asked by
Aubrey
400 views
Why is the final temperature of the metal and water mixture closer to the initial temperature of the water than the initial
1 answer
asked by
anna
379 views
Why is the final temperature of the metal and water mixture closer to the initial temperature of the water than the initial
1 answer
asked by
anna
374 views
True or False? The amount of energy needed to form an activated complex is known as the activation energy of a reaction.
1 answer
asked by
Heather
409 views
True or False? A solution made from NaCl and HCl will act as a buffer solution.
3 answers
asked by
Heather
437 views
True or False? An increase in pressure for a system composed entirely of gases will cause the reaction to shift to the side that
3 answers
asked by
Heather
385 views
Determine the empirical formula for the compound that contains 55.0 g carbon and 294 g sulfur
1 answer
asked by
Anonymous
437 views
How many moles are present in 250mL of sultion of 2mol L^-1 HCl (if 100kPa and 25 Degrees) ?
1 answer
asked by
dianna
302 views
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
1 answer
asked by
Karla
398 views
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
1 answer
asked by
Karla
359 views
How would you make 500 mL (0.500L) of a 0.200 M HCl solution from stock concentrate of 12 M HCl?
1 answer
asked by
Karla
332 views
What volume of 18.00 M HCl is required to completely neutralize 750.0 kg of barium hydroxide at 25.0 degrees C and 760 mm Hg?
1 answer
asked by
Sean P.
408 views
If I put the temperature is increasing would that be the same as going from -2.1 degrees Celsius to 100 degrees Celsius. OR
1 answer
asked by
Amy~
317 views
IUPAC names for the following compounds please
1..............O ...............|| ..........--...C ........./..\ /..\
1 answer
asked by
Mary
420 views
A beaker contains 50.0 mL of 0.952 M solution of a diprotic acid. How many grams of Mg(OH)2 are required to neutralize this
1 answer
asked by
Monica
405 views
In cold climates, methanol is often used as a gasoline antifreeze and an additive of winer gas. How does it remove water vapour
1 answer
asked by
Amy
390 views
Under constamt-pressure conditions a sample of hydrogen gas initially at 93 degress celcius and 8.1 L is cooled until its final
1 answer
asked by
Amanda
410 views
I don't understand what this question is asking .. i have already tried it and i got it wrong.
Assume that H^o and S^o do not
1 answer
asked by
Anonymous
326 views
Why is ∆H hydration a negative quantity for ionic compounds?
1 answer
asked by
Angel
397 views
ANYTHING WILL HELP. THANK YOUU!!
A student titrates 50mL apple juice and reports the following in the titration to the
1 answer
asked by
Amanda Walteshi
420 views
Solubility of a solute X is 20 g / 100 g of water at 450C and 10 g / 100 g of
water at 250C. What happens when a solution of 15 g
1 answer
asked by
Angel
361 views
How many calories would be required to raise the temperature of 25.0 g of lead by 55.0 degree Celcius?
1 answer
asked by
CMR
417 views
I know mathematically I can write chemical reactions this way but in chemistry can I if now why?
2K + 2(H20) yields 2KOH + H2 2(K
1 answer
asked by
Kate
439 views
"will .250 M CuSO4 power a battery the same as .100 M CuSO4? or will it be weaker?"
3 answers
asked by
Shelly
358 views
How do you find the density of Uranium Hexafloride?
1 answer
asked by
Victoria
353 views
Thank you!
I redid my questions and I got the following answers. Please let me know if they are correct! I am really unsure about
3 answers
asked by
Sarene-to Dr. Bob222
416 views
I was getting restless to post these questions, so I decided to go ahead and post them.
Balance each of the following skeleton
1 answer
asked by
Derrick
436 views
a chemist needs 46 mol of ammonia for a reaction to complete. he has 46 grams available but needs ammonia as a liquid
1 answer
asked by
Marie
393 views
How many grams of sodium hydroxide are dissolved in 0.02 of a 3.0 m solution?
1 answer
asked by
Sam
312 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (62)
Academic Subjects
Advanced Placement (AP)
Arts and Sciences
Biology
Career
Earth Science
Education
Educational Resources
Experiments
General science
High School
History and Science
Homework Help
Industries
Majors
Math
Math and Science
Math/Science
Mathematics
Mathematics & Science
Mathematics and Science
Movies
Natural Sciences
Online Discussion
Physical Science
Physical Sciences
Physics
Science
Science & Environment
Science & Medicine
Science & Nature
Science and Biology
Science and Education
Science and Engineering
Science and Environment
Science and Experimentation
Science and Experiments
Science and Geography
Science and Health
Science and Math
Science and Mathematics
Science and Medicine
Science and Nature
Science and Research
Science and Technology
Science Education
Science Experiment
Science Experiments
Science Safety
Science/Educational
Science/Math
Science/Mathematics
Science/Molecular Biology
Science/Physics
Science/Technology
Sciences
Scientific Experiment
STEM (Science, Technology, Engineering, and Mathematics)
STEM (Science, Technology, Engineering, Mathematics)
Subjects
Test Preparation
Word Problems