1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sedaia [141]
3 years ago
8

Which mixture will not yield hydrogen gas?

Chemistry
1 answer:
Usimov [2.4K]3 years ago
4 0
E) Steam and red hot iron
You might be interested in
NEED ASAP
solmaris [256]
The shape of the H2O molecule is a Bent Triatomic.
It isn't symmetrical.
The H2O molecule is polar.
6 0
3 years ago
Read 2 more answers
If 4.50 l of water vapor at 50.2 °c and 0.121 atm reacts with excess iron, how many grams of iron(iii) oxide will be produced?
Flura [38]
When the balanced equation for this reaction is:
2Fe + 3H2O → Fe2O3  +  3H2

and according to the vapour pressure formula:
PV= nRT
when we have P is the vapor pressure of H2O= 0.121 atm
and V is the volume of H2O = 4.5 L
and T in Kelvin = 52.5 +273 = 325.5 K
R= 0.08205 atm-L/g mol-K
So we can get n H2O
So, by substitution:
n H2O = PV/RT
            = (0.121*4.5)/(0.08205 * 325.5) = 0.02038 gmol
n Fe2O3 = 0.02038 * (1Fe2O3/ 3H2O) = 0.00679 gmol
Note: we get (1FeO3/3H2O) ratio from the balanced equation.
we can get the Mass of Fe2O3 from this formula:
Mass = number of moles * molecular weight       
  when we have a molecular weight of Fe2O3 = 159.7
          =  0.00679 * 159.7 = 1.084 g
∴ 1.084 gm of Fe2O3 will produced
6 0
3 years ago
Read 2 more answers
What is the percent by mass of oxygen fe2o3 (formula mass= 160)?
GarryVolchara [31]
30% should be the percentage of oxygen if the total mass of fe2o3 is 160.
5 0
2 years ago
Match each of the three descriptions of a volume to the appropriate metric unit of volume
tankabanditka [31]
A.) 1.
b.) 3
c.) 2
I hope this helps.
8 0
3 years ago
Becky leaves home and rides a distance of 30 km. it took her 2.5 hours. what is her speed
Charra [1.4K]
Becky's speed is her distance travelled which is 30 km divided by her time travelled of 2.5 hours which gives her average speed of 12 km/hour which is a quite good speed if she was say riding a bicycle and which would give her a good aerobic workout. 
4 0
3 years ago
Other questions:
  • An atom holds 7 electrons. use orbital notation to model the probable location of its electrons.
    11·1 answer
  • Which of the following is a solution? <br> Steel <br> Milk <br> Plastic <br> Water
    9·1 answer
  • Which statement best describes how dynamic equilibrium relates to a saturated solution of sodium chloride? The concentration of
    11·2 answers
  • What are at least 2 functions of DNA
    7·1 answer
  • How many molecules of NaCl are there in 250 grams of table salt
    13·1 answer
  • Calculating the volume of 0.05mol/dm3 KOH is required to neutralise 25.0cm3 of 0.0150mol/dm3 HNO3
    9·1 answer
  • A solar cell converts light energy to?
    10·1 answer
  • Find the value of 6 +<br>6 +<br>6 + 16 + vo​
    13·1 answer
  • When ice is melting, the heat being added causes:
    9·2 answers
  • What is the final temperature of a system if 10.0 grams of cold water, originally at 10°C is mixed with 120.0 grams of hot water
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!