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mihalych1998 [28]
2 years ago
9

Hydrazine is a great chemical propellant because it creates a lot of gaseous products that need to expand and escape from their

reaction space. Based on this information, what physical characteristics of a reaction would you look for when trying to find new propellants?
Chemistry
1 answer:
Burka [1]2 years ago
4 0

We have to look for safe and non - hazardous characterstics when trying to find new propellants.

<h3>What are propellants ?</h3>

Propellants are any gas, liquid, or solid the expansion of which can be used to impart motion to another substance or object.

The Desirable properties for propellant combinations are ;

  • low molecular mass and high temperature of reaction products (for high exhaust velocity),
  • high density (to minimize tank weight),
  • low hazard factor (e.g., corrosivity and toxicity),
  • low environmental impact,
  • low cost.

Learn more about propellants here ;

brainly.com/question/1395855

#SPJ1

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I NEED HELP PLEASE! :)<br><br> Describe a limiting reactant in your own words.
koban [17]

Answer:

See explanation

Explanation:

A limiting reactant is the reactant in a reaction that is done reacting first, because there are less moles of it than are needed for a full reaction with the other compound or compounds.

Hope this helps!

3 0
3 years ago
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Honey is not a fluid since it is so thick that it has a hard time flowing.
aliina [53]
False. It is a fluid as it is in its liquid state possessing qualities of a liquid just that it is viscious
8 0
3 years ago
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.500 mol of br2 and .500 mol of cl2 are placed in a .500L flask and allowed to reach equilibrium. at equilibrium the flask was f
Tasya [4]

Answer : The value of K_c for the given reaction is, 0.36

Explanation :

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

The equilibrium expression for the reaction is determined by multiplying the concentrations of products and divided by the concentrations of the reactants and each concentration is raised to the power that is equal to the coefficient in the balanced reaction.

As we know that the concentrations of pure solids and liquids are constant that is they do not change. Thus, they are not included in the equilibrium expression.

The given equilibrium reaction is,

Br_2(aq)+Cl_2(aq)\rightleftharpoons 2BrCl(aq)

The expression of K_c will be,

K_c=\frac{[BrCl]^2}{[Br_2][Cl_2]}

First we have to calculate the concentration of Br_2,Cl_2\text{ and }BrCl.

\text{Concentration of }Br_2=\frac{Moles}{Volume}=\frac{0.500mol}{0.500L}=1M

\text{Concentration of }Cl_2=\frac{Moles}{Volume}=\frac{0.500mol}{0.500L}=1M

\text{Concentration of }BrCl=\frac{Moles}{Volume}=\frac{0.300mol}{0.500L}=0.6M

Now we have to calculate the value of K_c for the given reaction.

K_c=\frac{[BrCl]^2}{[Br_2][Cl_2]}

K_c=\frac{(0.6)^2}{(1)\times (1)}

K_c=0.36

Therefore, the value of K_c for the given reaction is, 0.36

6 0
3 years ago
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What are the pH of these solutions?
Tju [1.3M]

Answer:

The answer to your question is below

Explanation:

a)    HCl  0.01 M

      pH = -log [0.01]

      pH = - (-2)

     pH = 2

b)    HCl = 0.001 M

      pH = -log[0.001]

      pH = -(-3)

      pH = 3

c)    HCl = 0.00001 M

       pH = -log[0.00001]

       pH = - (-5)

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d) Distilled water

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e) NaOH = 0.00001 M

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       pH = 14 - 5

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f)  NaOH = 0.001 M

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      pH = 14 - 3

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g)   NaOH = 0.1 M

       pOH = -log[0.1]

       pOH = 1

       pH = 14 - 1

       pH = 13

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Sun, use fusion to combine hydrogen atoms into helium atoms,
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