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
cricket20 [7]
3 years ago
5

Show the difference in the reactivity of Na,Ca,Mg,Al,Fe,Cu with H2O

Chemistry
1 answer:
Vesnalui [34]3 years ago
7 0

Answer:

Explanation:

Na react with H2O to form NAOH

2 Na+2H2O....................2NAOH + H2

Ca react with water and form calcium hydroxide

Ca + 2H2O........................Ca(OH)2

Mg react with water and form Magnesium hydroxide

Mg +2H2O .........................Mg(OH)2 however this coating of mg(oh)2 prevent it from further reaction

 Fe react with water and form ferric hydride

3Fe +H2O.......................2 FeH +FeO

copper do not react with water

You might be interested in
In systemic tissue fluids, the enzyme carbonic anhydrase catalyzes the reaction co2 + h2o → h2co3 (which then can dissociate int
NeTakaya
It is achievable for the same enzyme to catalyze reverse reactions for the reason that the direction of a reversible reaction is determined by the concentrations of reactants and products. In pulmonary circulation, the low CO2 concentration supports the making of CO2 and H2O.
7 0
3 years ago
A solution is made by mixing 33.0 ml of ethanol, C2H6O and 67.0 ml of water. Assuming ideal behavior, what is the vapor pressure
ivann1987 [24]
Grams ethanol = 33 ml times .789 gms/ml = 26.037 gms 

<span>Moles ethanol = 26.037 gms / 46 gms/mole = .57 moles </span>

<span>Moles water = 67 ml or 67 grams/18 gms/mole = 3.22 moles </span>

<span>total moles = .57 + 3.72 = 4.29 moles </span>

<span>Mole fraction ethanol = .57 moles ethanol / 4.29 moles total = 0.13</span>

<span>Moles fraction water = 3.72 moles water / 4.29 moles total = 0.87</span>

<span>Partial pressure of ethanol = mole fraction ethanol (.13) _ times VP ethanol 43.9 torr) = 5.707 torr </span>

<span>partial pressure water = mole fraction water .87) times VP water (l7.5 torr) = 15.23 torr </span>

<span>Total vapor pressure over solution = 5.71 torr + 15.23 torr = 20.94 torr</span>
7 0
3 years ago
A student practicing for a track meet ran 300 meters in 30 seconds. what was her average speed?​
ololo11 [35]

Answer:

<h2>10 m/s</h2>

Explanation:

Her average speed can be found by using the formula

v =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

v =  \frac{300}{30}  = 10 \\

We have the final answer as

<h3>10 m/s</h3>

Hope this helps you

7 0
3 years ago
The table below gives the numbers of protons, electrons, and neutrons in
Dominik [7]

Answer:

i may be smart... but right now all I want is points

Explanation:

7 0
3 years ago
How is a light bulb related to radiation?
salantis [7]
Light bulbs works by converting electricity into light by using electric currents. it emits electromagnetic radiation
4 0
3 years ago
Read 2 more answers
Other questions:
  • What does the law of conservation of energy impy
    12·2 answers
  • which shape has a larger area: a rectangle that is 7 inches by 3/4 inch, or a square with side length of 2 1/2 inches? show your
    15·2 answers
  • What are metallic bonds?
    15·1 answer
  • What is the formula for the molecular compound disulfur decafluoride?
    7·2 answers
  • Which two factors must be equal when a chemical reaction reaches equilibrium?
    15·1 answer
  • While both comets and asteroids are found to orbit the sun in our solar system which system which choice correctly explain how t
    9·1 answer
  • What must occur in order for a chemical reaction to be specifically classified as endothermic instead of exothermic?
    5·2 answers
  • Is it A? <br> NEED HELP ASAP PLEASE
    11·2 answers
  • What is the concentration in moles per litre of:
    9·1 answer
  • Abuse of time and temperature can occur in each of the following ways except: The items are not cooked to the proper internal te
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!