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For the reaction of HNO3 is this the reaction? Is the water liquid?
2HNO3(s)> 2NO2(g)+H2O(l)+ 1/2O2(g)
1 answer
asked by
Sandy
447 views
How many grams of water and iron must react to produce 543 g of iron oxide, Fe3O4?
3Fe + 4H2O---> Fe3O4 + 4H2
2 answers
asked by
Christian
1,102 views
why would ca+ and co+ form soluble salts?
1 answer
asked by
ANON
285 views
Distinguish between polar bonds and polar molecules.
1 answer
asked by
ANON
396 views
explain 1) Ion-Ion
2) Ion-Dipole 3) Dipole-Dipole 4) Dipole-Induced dipole 5) Induced dipole-Induced dipole
1 answer
asked by
ANON
334 views
Explain why H2O and NH3 are both dipole-dipole interactions yet H2O boils at a significantly higher temperature.
1 answer
asked by
ANON
677 views
Explain solvation and/or hydration
1 answer
asked by
ANON
277 views
Explain in glorious detail the difference between H2O and H2S
1 answer
asked by
ANON
301 views
In nonpolar molecules what part does Molecular Weight play in the strength on their intermolecular forces?
1 answer
asked by
ANON
340 views
Explain how micelles and more complex solutions work. Consider all Solute-solute, Solvent-solute and Solvent-solvent
2 answers
asked by
ANON
567 views
Factors which effect reaction rates. 1) Concentration 2) Temperature 3) Presence of a Catalyst 4) Surface area 5) Orientation
You
2 answers
asked by
ANON
626 views
Please help me, i don't know how to approach this question!
All ammonium salts on heating with sodium hydroxide produce ammonia
4 answers
asked by
Marrion
1,118 views
I posted a question earlier, and i'm still abit confused. What is the reaction between potassium and aqueous sodium chloride? I
1 answer
asked by
Marrion
673 views
on a heating curve graph...what factors determine the lengths of the flat regions of the graph and slope of the curve between
1 answer
asked by
samuel
655 views
can u rank the fallowing elements by increasing electronegativity: sulur, oxygen, neon, and aluminum.
please help!
1 answer
asked by
Jay
468 views
rank the fallowing elements by increasing atomic radius: carbon, aluminum, oxygen, potassium.
please help!
2 answers
asked by
Jay
943 views
how can you tell if a molecule is polar or non-polar? plz help!
1 answer
asked by
Anonymous
321 views
Select all cases where the substance shown has a molecular dipole.
CH4 methane CH3CH2CH2CH3 butane ICl iodine chloride H2Se
2 answers
asked by
Arron
961 views
If you are given only the time and Molarity for example
Time Molarity 30s 0.678M 60s 0.762 M 70s 0.00987 M How would you find the
2 answers
asked by
anonymous
567 views
1.) At what temperature will the rate constant for the reaction H2 + I2 to 2HI have the value 5.2×10−3 M^{-1}s^{-1}? (Assume
2 answers
asked by
anonymous
588 views
If 335g water at 65.5 degC loses 9750 J of heat, what is the final temperature of the water?
2 answers
asked by
Sammy
953 views
Suppose that the microwave radiation has a wavelength of 10.8 cm. How many photons are required to heat 225 mL of coffee from
4 answers
asked by
baubi
1,368 views
how many gram of potassium bromide can be made from 13.7 grams of potassium and unlimited bromide
4 answers
asked by
Sienna
920 views
The first excited state of the hydrogen atom is separated from the ground state by 10.2 eV.
(a) At what wavelength does this
1 answer
asked by
ABBY
401 views
given the general chemical equation,
A yields 3C + D , a. how many moles of C can be produced from one mole of A? b. how many
2 answers
asked by
Sienna
539 views
Which of the following will be affected by the addition of a catalyst to a chemical reaction? Choose all that apply. thanks
A)the
2 answers
asked by
Adam
589 views
How are the forward and reverse rate constants for a one-step reaction related to the equilibrium constant for the reaction?
A)Kc
1 answer
asked by
Adam
393 views
Calculate the vapor pressure at 25 C of hexane above the solution. The vapor pressure of pure hexane at 25 C is 151 torr.
A
3 answers
asked by
AMI
1,670 views
Which of the following mixtures will result in the formation of a buffer solution when dissolved in 1.00 L of water?
i) 0.50 mol
3 answers
asked by
B
730 views
The vapor pressure of pure water at 25 °C is 23.8 torr. Determine the vapor pressure (torr) of water
at 25 °C above a solution
4 answers
asked by
BEN
2,214 views
Calculate the mass of nitrogen dissolved at room temperature in an 80L home aquarium. Assume total pressure of 1 atm and mole
2 answers
asked by
Johannie
626 views
H2Te
CH3CHO CH3CN H2Se polar or nonpolar? Also, anyone know any sites that show pics of the shape of molecules?
3 answers
asked by
RICHY
1,463 views
Calculate the mass of silver chloride required to plate 185 of pure silver.
2 answers
asked by
Teresha
1,016 views
Magnesium has an average atomic mass of 24.3068 amu and has three isotopes: 24Mg(23.985045 amu), 25 Mg (24.985839 amu) and 26
2 answers
asked by
SAMMMMMM
785 views
Is Brass a compound or a mixture and why?
4 answers
asked by
MAX
389 views
what is the charge of a PHOSPITE ?
and how do i write it?
5 answers
asked by
OLGA
409 views
How many significant figures does 79,500 have?
1 answer
asked by
SAMMMMMM
344 views
Could you please tell me if these are right? Write an equation for the following reactions. Write the correct formulas of the
2 answers
asked by
Chris
848 views
is breaking an egg a chemical or physical change?
is cooking an egg a chemical or physical change?
10 answers
asked by
Elizabeth
10,397 views
How many grams of helium must be added to a balloon containing 8.00 g of helium gas to double its volume. Assume no temp or
4 answers
asked by
Lilli
1,768 views
One piece of copper jewelry at 101°C has exactly twice the mass of another piece, which is at 36.0°C. Both pieces are placed
5 answers
asked by
Cory
2,258 views
What is the abbreviated electron configurations of :
a) MO 4+ b) As 3- c) S 2- D) NI 2+
3 answers
asked by
MAX
635 views
Arrange the following in order of increasing atomic radius : Co, Mo, S, Ge, Cs
2 answers
asked by
MAX
531 views
Will you please tell me if these are right? Write the symbol of the caton or anion that give(s) the following reaction:?
1. Forms
2 answers
asked by
Jason
491 views
What reactions does Br- have, ones that would distinguish it as a anion? As in a anion analysis scheme?
1 answer
asked by
Molly
336 views
How much heat is released in the formation of 10 liters of NH3(g) at 25 C and 1 atm, given :
2N2+3H2 ----> 2 NH3 HEAT OF FUSION
1 answer
asked by
MAX
390 views
a mixture of n2 and O2 contains 2.7 g of O2 and occupies 3.1 L at 28 degrees celcius, 810 mm Hg. how many grams on N2 are there
3 answers
asked by
MAX
494 views
a 3 liter flask at 25 C is filled with a mixture of N2 AND O2 to a total pressure of 8 atm, there were 10 grams of N2. How many
1 answer
asked by
MAX
436 views
a cyinder with a volume of 5.37 liters contains N2 at a pressure of 2.82 atm at 26 celcius. how many grams Ne must be added to
1 answer
asked by
MAX
444 views
A mixture of n2 and o2 contains 2.7 grams of O2 and occupies 3.1 L at 28 degrees Celsius, 810 mmHg. how many grams of N2 are
3 answers
asked by
MAX
341 views
HOW MANY GRAMS OF SALT ARE REQUIRED TO PREPARE 300 G OF 15% SALT SOLUTION?
HOW MANY GRAMS OF WATER ARE NEEDED?
2 answers
asked by
Anonymous
749 views
a solution containing 30 g of nh3 in 70 g of water has a density of 0.882 g/ml. what is the molarity and molality
5 answers
asked by
MAX
562 views
Are these cations, how do i know?
BF3, BH3, AlCl3, FeCl3 how do i recognize a cation?
3 answers
asked by
ben
658 views
WHATS IS THE DENSITY OF ETHYLENE GLYCOL IF YOU HAVE A 50ML SAMPLE OF ETHYLENE GLYCOL WITH A MASS OFF 55.505G
1 answer
asked by
DENISA
1,146 views
WHAT IS THE pH of 1.00 molar solution of NaNO3(aq)? The Ka for nitric acid is 0.0007.show all calculations
1 answer
asked by
Zitha
392 views
a gas bulb is connected to an open end manometer. the pressure in the bulb is .355 torr MORE than atmospheric pressure. If the
3 answers
asked by
Joanie
1,016 views
0.16 M HC2H3O2 and 0.31 M of NAC2H3O2 titrated with what ml of 0.25 M HCL
1 answer
asked by
bID
330 views
HOW DO I Calculate the pKa of each acid.
C2O4H2, Ka = 5.9 10-2
2 answers
asked by
dada78
483 views
draw the structural formula for 1,3,5-trichlorocyclohexane
4 answers
asked by
Star
1,410 views
Trying to figure out how to draw the structure 2-bromo-4-phenylpentane
I thought it was a five carbon strong with the ring on the
3 answers
asked by
Star
1,118 views
What is the number of "UNBOUND" electrons in H2O...its not 0 or 2....is it 1??
2 answers
asked by
CHEMISTRY
803 views
An atom at the face of a unit cell is shared by how many unit cells?
1 2 4 6 8
2 answers
asked by
Hannah
952 views
HOW MCH VOLUME OF DECA MOLAR SOLUTION IS REQD 2 PEPARE 500ML OF SOLUTION WITH DENSITY 1.03G/ML & HAVING MASS% =40%.
2 answers
asked by
AMIT
615 views
Calculate the pH of a .7 M solution of ammonium chloride
1 answer
asked by
Heather
322 views
Calculate the pH of a .7 M solution of ammonium chloride
1 answer
asked by
Heather
392 views
SAPPHIRE AND DIAMOND RING ,STAMPED 14K S&S WHAT DOES THIS MEAN?
1 answer
asked by
DINA
1,017 views
Calculate G° for each reaction using G°f values.
MnO2(s) + 2 CO(g) Mn(s) + 2 CO2(g)
2 answers
asked by
Amanda
849 views
Compare the value you obtained from average bond energies: (260Kj) to the actual standard enthalpy of formation of gaseous
2 answers
asked by
ALISON
536 views
3. which of the following is not likely to indicate that a double-displacement reaction has occurred neutralization of acids and
3 answers
asked by
Anonymous
567 views
At 1100 K, Kp = 0.25 for the following reaction.
2 SO2(g) + O2(g) 2 SO3(g) What is the value of K at this temperature?
1 answer
asked by
Anderson
443 views
At 1100 K, Kp = 0.25 for the following reaction.
2 SO2(g) + O2(g) 2 SO3(g) What is the value of K at this temperature?
3 answers
asked by
Anderson
601 views
Write an equation for the acid–base reaction between ammonium ion and sulfate ion.
a. why does the equillibrium favor the
2 answers
asked by
john
847 views
For the equilibrium reaction
Co(g)+H2O(g)<=>CO2(g)+H2(g) the Keq value at 690°C is 10.0. A mixture of 0.300 mol of CO, 0.300 mol
2 answers
asked by
AMI
1,068 views
Consider the following balanced oxidation-reduction reaction:
Cl2 + SO2 + 2 H2O --> 2 Cl^1- + SO4^2- + 4 H^1+ Based on the above
2 answers
asked by
LIARA
593 views
If the heat from burning 5.800 g of C6H6 is added to 5691 g of water at 21 °C, what is the final temperature of the water?
2C6H6
3 answers
asked by
Akle
594 views
I know I posted this question again but no one is really helping me. Can someone please help me as soon as possible.
In a
6 answers
asked by
Akle
644 views
Cl2 + SO2 + 2 H2O --> 2 Cl^1- + SO4^2- + 4 H^1+
1) Which element is oxidized ? (simply write the element symbol; e.g. Fe, O) 2)
2 answers
asked by
TARA
624 views
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure.
4 answers
asked by
JSJFJF
720 views
How does the neutron to proton ratio affect the stability of an atomic nucleus ?
1 answer
asked by
NILA
419 views
Pu-239 has a half-life of 24110 y. If 1.00 kg of this isotope is present in the used fuel rods of a nuclear power plant
1 answer
asked by
ARIANA
382 views
Consider the reaction, 3 NO2(g) + H2O(l) ® 2 HNO3(aq) + NO(g),
where DH = – 137 kJ. How many kilojoules are released when 92.3
4 answers
asked by
jerry
4,188 views
a 250.0ml buffer solution is 0.250M in ascetic acid and 0.250M in sodium acetate.
B). What is pH after addition of 0.0050mol of
2 answers
asked by
ALISON
801 views
Given the equation 2C8H18 + 25O2 = 16 CO2 + 18H2O: The combustion of octane produces carbon dioxide and water. If you start with
2 answers
asked by
Brittany
813 views
When 0.5 mole of CO2 and 0.5 mole of H2 were forced into a litre reaction container, and equilibrium was established:
CO2(g) +
3 answers
asked by
Anonymous
1,233 views
4.69 of S is reaction with oxygen calculate the volume of SO2 in mL formed at 33 degrees C and 1.14 atm
1 answer
asked by
aPRIL
333 views
g of alchol present in 2.45l of 75 proof gin density of ethonal is 0.798 g/ml =
1 answer
asked by
April
421 views
A metal, M, of atomic mass 91 amu reacts with fluorine to form a salt that can be represented as MFx. In order to determine x
3 answers
asked by
John
2,463 views
IF A SAMPLE OF GASE HAVE A VOLUME OF 8.20 L AT 25*C AND 2.00 ATM, HOW MUCH VOLUME WILL IT TAKE UP IF YOU DECREASE THE PRESSURE
5 answers
asked by
liz
1,087 views
A GAS TAKES UP 25.2 L AT 25*C. AT 25*c THE GAS CAN ALSO TAKE UP 12.2lAT 1520 TORR. WHAT WAS THE PRESSURE IN ATM, OF THE ORIGINAL
3 answers
asked by
liz
512 views
why should the maximum percent yield never be above 100%
3 answers
asked by
amira
437 views
can anyone help me please convert
water is flowing through a-inchdiameter pipe with a velocity of 3FT/S. WHAT IS the KE of water
1 answer
asked by
linda
303 views
Aluminum reacts with Chlorine gas to form AlCl3. [2Al(s)+3Cl2(g)=2AlCl3(s)]
Given 11.0g of Al and 16.0g Cl2, if you had excess
3 answers
asked by
leng
1,938 views
25.0 CM3 OF 0.100M acetic acid is titrated with 0.900M of NaOH. Ka for acetic acid =1.85*10^-5. calculate
1)the intial pH of the
1 answer
asked by
DARRYL
534 views
A 7.5 g sample of Cu(NO3)2.nH2O is heated. After the water has been driven off, 5.8 g of Cu(NO3)2 remains. What is the value of
3 answers
asked by
Dee
585 views
A sample of an unknown hydrate weighs 0.500 g and after heating it weighs 0.100. What is the percent of water in the hydrate?
1 answer
asked by
Dee
447 views
9.60 g of hydrated nickel (II) sulfate is heated to produce 5.26 g of anhydrous compound NiSO4.
Calculate the number of moles of
3 answers
asked by
Dee
1,100 views
Arrange the following in order of increasing atomic radii from smallest to largest.
Mg Ra Sr Be Ca Ba
4 answers
asked by
Lena
3,274 views
Silicon carbide, commonly known as carborundum, is a very hard and abrasive substance. The compound is prepared by heating
2 answers
asked by
Lena
883 views
what volume would 10.5g of nitrogen gas, N2, occupy at 200.K and 2.02atm?
2 answers
asked by
tracy
487 views
A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.43 kg m-3. Under these conditions the
1 answer
asked by
Jaigaon
413 views
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