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
Vesnalui [34]
3 years ago
11

The metals that react violenty with cold water are

Chemistry
1 answer:
Pavel [41]3 years ago
6 0

Explanation:

The metals that react violently with cold water are <em>sodium </em><em>and </em><em>potassium</em><em>.</em>

You might be interested in
8)
Rina8888 [55]
B mass but not of charge
7 0
3 years ago
Which of these does not describe the wright brothers first attempts at flight
Trava [24]
Are there options for answers
4 0
3 years ago
Read 2 more answers
What type of reaction is shown in this thermochemical equation? A + B + heat → C + D
hodyreva [135]
The reaction, as what is depicted in the thermonuclear equation is one of the best example of an endothermic reaction. In addition, the endothermic process revolves around the idea that the system can also absorb the energy from its surroundings, in contrast to the idea of releasing its energy to its environment. 
3 0
3 years ago
Read 2 more answers
Iron (III) oxide and hydrogen react to form iron and water, like this: Fe 03(s)+3H9)2Fe(s)+3HO) At a certain temperature, a chem
belka [17]

The question is incomplete, here is the complete question:

Iron (III) oxide and hydrogen react to form iron and water, like this:

Fe_2O_3(s)+3H_2(g)\rightarrow 2Fe(s)+3H_2O(g)

At a certain temperature, a chemist finds that a 8.9 L reaction vessel containing a mixture of iron(III) oxide, hydrogen, Iron, and water at equilibrium has the following composition.

Compound             Amount

  Fe₂O₃                     3.95 g

     H₂                        4.77 g

     Fe                        4.38 g

    H₂O                      2.00 g

Calculate the value of the equilibrium constant Kc for this reaction. Round your answer to 2 significant digits.

<u>Answer:</u> The value of equilibrium constant for given equation is 1.0\times 10^{-4}

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}

  • <u>For hydrogen gas:</u>

Given mass of hydrogen gas = 4.77 g

Molar mass of hydrogen gas = 2 g/mol

Volume of the solution = 8.9 L

Putting values in above expression, we get:

\text{Molarity of hydrogen gas}=\frac{4.77}{2\times 8.9}\\\\\text{Molarity of hydrogen gas}=0.268M

  • <u>For water:</u>

Given mass of water = 2.00 g

Molar mass of water = 18 g/mol

Volume of the solution = 8.9 L

Putting values in above expression, we get:

\text{Molarity of water}=\frac{2.00}{18\times 8.9}\\\\\text{Molarity of water}=0.0125M

For the given chemical equation:

Fe_2O_3(s)+3H_2(g)\rightarrow 2Fe(s)+3H_2O(g)

The expression of equilibrium constant for above equation follows:

K_{eq}=\frac{[H_2O]^3}{[H_2]^3}

Concentration of pure solids and pure liquids are taken as 1 in equilibrium constant expression.

Putting values in above expression, we get:

K_{c}=\frac{(0.0125)^3}{(0.268)^3}\\\\K_{c}=1.0\times 10^{-4}

Hence, the value of equilibrium constant for given equation is 1.0\times 10^{-4}

6 0
3 years ago
What would cause a liquid to turn into a solid?
KIM [24]
It’s C
Cooling a liquid til it freezes will cause a liquid to turn into a solid
3 0
2 years ago
Read 2 more answers
Other questions:
  • How to calculate magnitude of k
    6·1 answer
  • What ion or part of a water molecule is associated with an acid?
    6·1 answer
  • Which medium allows sound to travel faster, air or water?
    6·2 answers
  • 2) What is the concentration of NaCl in a solution prepared by diluting 56.98 ml of 0.5894 M stock
    5·1 answer
  • The concentration of copper(II) sulfate in one brand of soluble plant fertilizer is 0.070% by weight. If a 21.5 g sample of this
    13·1 answer
  • What is the term for a ratio of equivalent measurements that can be used to change a value from one until into another
    11·1 answer
  • Para balancear una ecuacion quimica se cuenta el numero de:
    7·1 answer
  • What happens when an atom of sulfur combines with two atoms of chlorine to produce SCI ?
    13·1 answer
  • 5. A sample of pure acetyl salicylic acid had a mass of 0.268 grams. It was dissolved in NaOH and diluted to 500.00mL in a volum
    15·1 answer
  • What volume (in liters) does 3.91<br> moles of nitrogen gas at 5.35 atm<br> and 323 K occupy
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!