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1. ### what quantity of heat is needed to raise the temperature of 120 g of water 6 degrees K? (cs=4180 j/kg K)?

use the cp, (specific heat equation): energy = cp x mass x change in temp. we are solving for energy: e = 4180 j/kg K x .120 kg (convert to kg. from g.) x 6 K now use a calculator... oh yeah, remember units are your friends, look how they cancel with the specific heat for water, cp...

1 Answers · Science & Mathematics · 03/12/2007

2. ### The chloride ion has the same number of orbital electrons as an ion of A.Ar B.K C.Mg D.Na?

A. Argon. Chloride ion, Cl-, has taken on an extra e-, filling the octet, like argon

1 Answers · Science & Mathematics · 24/11/2008

3. ### What is the equilibrium expression for the reaction 3A(g)+B(g)--->2C(g)?

K = [C]^2/[A]^3[B] Products/Reactants

1 Answers · Science & Mathematics · 06/11/2012

4. ### Awesome inorganic chemistry question!?

K=C+273 (therefore, C=K-273) F=(5/9)C+32 Simple algebra at that point. Convert each to C with the first formula, then convert C to F.

1 Answers · Science & Mathematics · 05/08/2012

5. ### Concentration Question for Chemical reactions?

K(c) = K(p) when delta n = 0 b)

1 Answers · Science & Mathematics · 03/05/2008

6. ### which of the following is the most metallic element?

K is an alkali metal, but the most metallic of that selection is Magnesium (Mg)

4 Answers · Science & Mathematics · 25/12/2011

7. ### Which ion below has the largest radius?

Atomic radius decreases as you move to the right on the periodic table, and increases as you move down. This is because the number of shielding inner electrons stay the same while the amount of positive charge from the nucleus pulling in the valence...

4 Answers · Science & Mathematics · 26/04/2010

8. ### Question on pretty simple specific heat capacity question?

K=C + 273, but you do not need to convert to Kelvin with this formula because you...

2 Answers · Science & Mathematics · 24/09/2009

9. ### Which of the following elements has the smallest ionic radius?

As you go down a group the size of the atomic radius will increase because the amount of principal energy levels increase, which increase the size of the radius. When you go across a period, the principal energy level stays the same, and in addition the number of protons are...

7 Answers · Science & Mathematics · 06/07/2008

10. ### Of the following, which element has the highest first ionization energy?

Lithium

3 Answers · Science & Mathematics · 23/12/2009