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1. ### Sand has a specific heat of about 700 J/K o C. Water has a specific heat of about 4,000 J/K o C.?

What are your abbreviations? is the K = kg or Kelvin? what is the "o"? C is Calorie or Celsius? It takes more energy...

1 Answers · Science & Mathematics · 06/10/2013

2. ### What is the value of K c in L/mol at this temperature ?

delta n = 2 - 2 - 1 = -1 T = 298 K 1.42 x 10^3 = Kc ( RT)^delta n = Kc ( 0.08206 x 298)^-1 = Kc x 0.0409 Kc = 3.47 x 10^4

2 Answers · Science & Mathematics · 05/10/2010

3. ### What are the unbalanced equations for all of the alkali metals (*Li, Na, K,Rb, Cs and Fr) with water?

X + H2O ---> XOH + H2 Where X = Li, Na, K, Rb, Cs or Fr (although Fr is usually not included in such a request as yours)

2 Answers · Science & Mathematics · 21/10/2011

4. ### What is the value of K c in L/mol at this temperature ?

delta n = 2 - 2 - 1 = -1 Kp = Kc ( 0.08206 x 298 K)^-1 = Kc x 0.0409 Kc = 2.00 x 10^3 / 0.0409=4.89 x 10^4

2 Answers · Science & Mathematics · 05/03/2010

5. ### How do you calculate K(c) and K(p)?

initial concentration HI = 2.00/ 1.00 = 2.00 M at equilibrium [HI]= 2.00 x 20 / 100 = 0.400 M [H2] = [I2] = 0.400/2 = 0.200 M K = (0.200)^2 / (0.400)^2 = 0.25

1 Answers · Science & Mathematics · 17/02/2009

6. ### Chlorine melts at 172 K. What is chlorine's melting point in °C?

K = C + 273.15 so... C = K - 273.15 C = -101.15 Written with attention to significant figures would be -101C

5 Answers · Science & Mathematics · 07/09/2007

7. ### By what factor does the reaction rate change if B^1/2 is doubled ?

... rate = k[B]^1/2 [C]^2 different rate = k[2B]^1/2 [C]^2 = k 2^1/2 [B]^1/2 [C]^2 if you divide different rate by initial rate, you...

1 Answers · Science & Mathematics · 06/02/2009

8. ### What is the K'c for the following reaction?

Kc = [NO2]^2/[N2O4] = 4.63 x 10^-3 The "following reaction" should be 2NO2 ===> N2O4 K'c = [N2O4]/[NO2]^2 = 2.16 x 10^2 answer B.

1 Answers · Science & Mathematics · 23/06/2012

9. ### Which three elements have the most similar chemical properties? Ar, Kr, Br K, Rb, Cs B, C, N O, N, Si?

K, Rb, Cs because they're all in the same group (column)

1 Answers · Science & Mathematics · 29/05/2009

10. ### which of the following atoms is the largest?

...this group from smallest to largest is: Li, Na, K, Rb, Cs. These trends that you can see in your periodic table ...

2 Answers · Science & Mathematics · 19/12/2009

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