Questions LLC
Login
or
Sign Up
Ask a New Question
Chemistry
Page 4
Questions (98,009)
Write the balanced equation for vandadium (II) oxide with iron (III) oxide results in vanadium (V) oxide and iron (II) oxide.
2VO
5 answers
asked by
Hayden
5,779 views
The equation shows the complete combustion of propane.
C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(i) Which statement is correct? A)
4 answers
asked by
Muhammad Haris
2,838 views
how many moles of iron would have been used up if 45.0g of copper were to be produced?
is it # mols Fe = 45.0gCu x 1mol/63.5g =
7 answers
asked by
Lily
3,281 views
when propane gas C3H8, is burned with oxygen, the products are carbon dioxide and water. Write an unbalanced formula equation
6 answers
asked by
kate
10,317 views
Using the information below, which answer lists the salts in order of increasing solubility?
PbSO4 Ksp = 1.6 x 10^-8 PbS Ksp = 8
4 answers
asked by
Christine
871 views
what concentration of nitrogen should be present in a glass of water at room temperature? assume a temperature of 29°C a total
3 answers
asked by
ashmit
2,009 views
what can we say about the solubility of chlorides of Mg, Ca, and Ba?
1 answer
asked anonymously
28 views
a titration required 18.38mL of 0.1574 M NaOH solution. how many moles of NaOH were in this volume?
11 answers
asked by
Gurjot
6,968 views
A dilute electrolyte is not necessary weak and a concentrated electrolyte weak and a concentrated electrolyte is necessary
3 answers
asked by
Tatu
220 views
Liquid water can be separated into hydrogen gas and oxygen gas through electrolysis. 1 mole of hydrogen gas and 0.5 moles of
55 answers
asked by
hunter
9,847 views
How much energy is released when 2.05 mol of water vapour at 100C condenses with no change in temperature?
5 answers
asked by
Anonymous
1,417 views
25g of NH3 is mixed with 4 moles of O2 in given reaction.
4NH3(g)+5O2(g)-->4NO(g)+6H2O(1) <--- what mass of NO is formed? What
7 answers
asked by
Erawd
6,622 views
An 8.00 mass % aqueous solution of ammonia has a density of 0.9651g/ml. Calculate the molality, molarity, and mole fraction of
5 answers
asked by
ALISON
7,788 views
Complete the table relating the values of Δ𝐺∘ and 𝐾 .
Δ𝐺∘ K <0 =0 >0 K can be =1, <1, or >1
4 answers
asked by
Anonymous
11,897 views
What is the only positive ion found in H2SO4(aq)?
a. ammonium ion b. hydronium ion c. hydroxide ion d. sulfate ion The answer's
5 answers
asked by
danny123
8,958 views
Consider the following equilibrium process at 700°C:
2H2 + S2 ↔ 2H2S Analysis shows that there are 2.50 moles of H2,
6 answers
asked by
Chris
11,493 views
what volume of 0.120 M NaOH must be added to 100 ml of 0.100 M NaHC2O4 to reach ph of 4.70?
H2C2O4 Ka1 = 5.9 x 10-2 HC2O4^- Ka2 =
5 answers
asked by
Steve
4,561 views
For the system
H2(g) + CO2(g) <---> H2O(g) + CO(g) at equilibrium, the addition of H2(g) would cause (according to
4 answers
asked by
please help
6,260 views
Calculate the number of moles of Na2CO3 present in 100cm^3 of 2 M Na2CO3 solution.i got 5 moles.am i right
7 answers
asked by
lucy
1,837 views
Nucleophile or electrophile?
(1) CH3COOH (2) CH3COO- At first, I thought that they were both Nucleophiles, but now Ive confused
5 answers
asked by
Sarah
5,896 views
The Henry's law constant for CO2(g) in water at 25 °C is 29.4 bar·M–1. Estimate the concentration of dissolved CO2(g) in a
5 answers
asked by
Matt
8,504 views
Which type of intermolecular forces would be expected in a sample of F2 gas?
a. London forces, dipole interactions, and ionic
5 answers
asked by
Christine
4,349 views
Hydrogen is generated by passing hot steam over iron, which oxidizes to form Fe3O4 in the following equation.
3Fe(s) + 4H2O(g) ->
5 answers
asked by
Vachirawit
2,426 views
In the gas-phase reaction given below, the [I2] changes from 0.400 M at 0.00 min to 0.200 M at 3.00 min. I2 + Cl2 --> 2 ICl
5 answers
asked by
Lionel
4,632 views
A certain reaction has a delta H= -75 kJ and an activation energy of 40 kJ. A catalyst is found that lowers the Activation
4 answers
asked by
josh
4,673 views
10cm3 of propane was sparked with 60cm3 of oxygen at Stp.What is the volume of residual gases after the reaction is cooled.
5 answers
asked by
Zino
1,666 views
Mno4- + So3-2 = Mno2 + sO4-2 (OH-) solve this redox reaction and give me the method also
4 answers
asked by
kiara
16,596 views
Which of the following substances shown should the standard heat of formation (\DeltaΔHfo be zero at 25oC
GaPO4 (aq) As (l) Ar
4 answers
asked by
Sara
609 views
Name two metals which form both soluble trioxocarbonate (iv) and soluble tetraoxosulphate (vi)
4 answers
asked by
Nicola
900 views
write balanced equation of the reaction of bromine and sodium thiosulfate
4 answers
asked by
swas
1,937 views
Is carat earrings homogeneous mixture or heterogeneous mixture?
4 answers
asked by
Lwandile
909 views
will MgCl2 reacts with NaCl to form precipitate
1 answer
asked anonymously
22 views
would you expect barium to react with HCl acid faster or slower than calcium
1 answer
asked anonymously
31 views
"How many grams of NH3 can be produced from the reaction of 28 g of N2 and 25 g of H2?
N2 + 3H2 ---> 2NH3 ==> 28 g N2 x (1 mol
11 answers
asked by
Emily
27,744 views
A solution is prepared in which a trace or small amount of Fe+2 is added to a much larger amount of solution in which the [OH]-
6 answers
asked by
brian
3,232 views
a volume of 50 cm of oxygen was exploded in 50cm of carbon iv oxide. what was the volume of the residual gas at room
2 answers
asked anonymously
196 views
The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction.
How many
1 answer
asked by
bear
143 views
a. Calculate the expected freezing-point depression of a 0.200 m KNO3 solution.
b. Will the value you calculated match the actual
5 answers
asked by
Drew
6,713 views
Write an equation for the reaction between the iron filings and dilute tetra oxosulphate (vi) acid
7 answers
asked by
Al Ameen
2,861 views
When 0.40 g of impure zinc reacted with an excess of hydrochloric acid, 127 mL of hydrogen was collected over water at 10
5 answers
asked by
Sandy
5,910 views
C7H6O3(s) + C4H6O3(l) → C9H8O4(s) + HC2H3O2(l)
is the equation. At 20 degree celsius, how many liters of acetic acid, HC2H3O2,
7 answers
asked by
Emat
3,679 views
Which of the following choices is NOT a potential application of the solubility product constant?
A. Use (K sp) to find
7 answers
asked by
Anonymous
2,445 views
In a saturated solution of silver phosphate, the concentration of silver ion is 4.5 x 10^-4 mol/L. The Ksp of silver phosphate
6 answers
asked by
Bobby
4,454 views
How many grams of HCl must be used to produce 10.0L of chlorine gas at STP?
Reaction: 2HCl (g)--->H2 (g)+Cl2 (g)
7 answers
asked by
Cliff
6,394 views
The cell diagram for the lead-acid cell that is used in automobile and truck batteries is
Pb(s) l PbSO4 (s) l H2SO4 (aq) l
5 answers
asked by
Bridget
3,120 views
How many grams of Fe(NO3)2 are present in 555mL of a 0.650 M solution of Fe(NO3)2??
I have no clue what to do??
5 answers
asked by
Ocean
2,546 views
Determine the solubility of a sodium sulfate, Na2SO4, in grams per 100g of water, if 0.94 g of Na2SO4 is dissolved in 20 g of
5 answers
asked by
Alex
4,957 views
How to calculate the quantity of heat gained or lost in the following change:
3.50 mol of water freezes at 0 degrees C? Would it
5 answers
asked by
Anonymous
4,729 views
Why was a strong base (KOH) used in the synthesis of ferrocene? Why would a strong acid not be a suitable alternative?
5 answers
asked by
dana
2,192 views
Write an equation for the reaction between iron fillings and dilute tetraoxosulphate (VI) acid.
5 answers
asked by
Divine
357 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