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A golf ball has a mass of 45.9g. A baseball has a mass of 147g. What is the relative mass of the
baseball compared to the golf ball?
consider th following reaction, initially at equilibrium: N2(g) + 3H2(g) 2NH3(g) + 92 Kj J/mol would the reactants or products have the greatest amount of entropy in this rwacion
1. Which pair of valence electron configuration represent two elements with similar chemical properties? a.1s²,3s² b.1s²,2s²2p¹ c.2s²,2s²2p⁶ d.2s²2p¹,2s²2p²
2. Which energy level within a group represents the biggest cationic size? a.n=1 b.n=2 c.n=3 d.n=4
3. What are the possible values of the magnetic quantum number? a.n b.0 to n-1 c.-l to +l d.+1/2, -1/2
1. a sample of helium gas contained in a balloon is warmed. if the balloon originally measures 1.5 L at 25 degree celsius, what is its volume at 85 degree celsius at constant pressure?
List five characteristics by Which compound can be distinguished from mixture ?
Le Chatelier's Principle predicts that __________ will result in an increase in the number of moles of SO3 in the reaction container. A) increasing the volume B) decreasing the pressure C) decreasing the temperature D) removing some oxygen
Le Chatelier's Principle predicts that __________ will result in an increase in the number of moles of SO3 in the reaction container.
A) increasing the volume
B) decreasing the pressure
C) decreasing the temperature
D) removing some oxygen
Using the concept of Equilibrium and Le Chatelier's Principle, explain how Earth's atmosphere exist in dynamic equilibrium related to the said content.
Calculate ∆H for the reaction CH4 (g) + NH3 (g) → HCN (g) + 3 H2 (g), from the reactions.
N2 (g) + 3 H2 (g) → 2 NH3 (g) ∆H = -91.8 kJ
C (s, graphite) + 2 H2 (g) → CH4 (g) ∆H = -74.9 kJ/mole
H2 (g) + 2 C (s, graphite) + N2 (g) → 2 HCN (g) ∆H = +270.3 kJ
PROBLEM: At 25°C (298 K), the reduction of copper(I) oxide is nonspontaneous AG = 8.9 kJ). Calculate the temperature at which the reaction becomes spontaneous. ΔΗ = 58.1 kJ AS = 0.165 kJ/K
