Answer:
Explanation:  
Hello there!  
In this case, according to the Charles' law equation which help us to understand the directly proportional relationship between volume and temperature:
  
Thus, by solving for the final temperature, T2, and making sure we use the temperatures in Kelvin, we can calculate the final temperature as shown below:

Best regards!  
Best regards!
 
        
             
        
        
        
Answer:
The answer to your question is: letter A
Explanation:
A combination reaction is when there are two reactants that gives only one product.
a. 2SO2 + O2—> 2SO3                          This is a combination reaction, 
                                                                2 reactants gives one product.
b. Zn + Cu(NO3)2–>Zn(NO3)2 + Cu     This is not a combination reaction, 
                                                                 it's a single replacement reaction.
c. 2H2O2–> 2H2O+O2                          This is a decomposition reaction
d. AgNO3 + NaCl → AgCl+NaNO3        THis is a double replacement reaction.
 
        
             
        
        
        
Answer:
Kc = [CH₄] / [H₂]²
Kp = [CH₄] / [H₂]² * (0.082*T)^-1
Explanation:
Equilibrium constant, Kc, is defined as the ratio of the concentrations of the products over the reactants. Also, each concentration of product of reactant is powered to its coefficient.
<em>Pure solids and liquids are not taken into account in an equilibrium</em>
Thus, for the reaction:
C(s)+ 2H₂(g) ⇌ CH₄(g)
Equilibrium constant is:
<h3>Kc = [CH₄] / [H₂]²</h3>
Now, using the formula:
Kp = Kc* (RT)^Δn
<em>Where R is gas constant (0.082atmL/molK), T is the temperature of the reaction and Δn is difference in coefficients of gas products - coefficients of gas reactants (1 - 2= -1)</em>
Replacing:
<h3>Kp = [CH₄] / [H₂]² * (0.082*T)^-1</h3>
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Answer:
Given the activity series of elements, the reaction that will occur is: 2AgNO3 + Ni -----> Ni(NO3)2 + 2Ag