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Chemistry

Hydrogen is prepared commercially by the reaction of methane and water vapor at elevated temperatures. CH4 (g) + H2 O (g) ⇌ 3H2 (g) + CO (g) What is the equilibrium constant for the reaction if a mixture at equilibrium contains gases with the following concentrations: CH4, 0.126 M; H2O, 0.242 M; CO, 0.126 M; H2 1.15 M, at a temperature of 760 °C?

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Chemistry

What is the percent yield if 4.65 g of copper?

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Chemistry

Is a oak tree a invertebrates

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Chemistry

If an object has the mass of 109.67 g and a volume of 16.99 cm3 what's its density

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Chemistry

A mixture contains two or more substances chemically combined while a compound contains two or more substances physically combined. True False

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Chemistry

C AL = - 4.184 * 39.85 * 4.7 : 11.98 * (-72.9)

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Cheyenne Pennington

Chemistry

2 CO (g) + O2 (g) → 2 CO2 (g)

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Chemistry

3h2 (g) + o3 (g) 3h20 (g)

arrow after the o3 (g)

whats the overall enthalpy?

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Chemistry

For the reaction represented by the equation cl2 + 2kbr ® 2kcl + br2, calculate the percentage yield if 200. g of chlorine react with excess potassium bromide to produce 410. g of bromine.

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Phoenix Frazier

Chemistry

The surface area and depth of the Pacific Ocean are 1.8 X 10^8 km^2 and 3.9 X10^3 m respectively, Calculate the volume of the Pacific Ocean in liters.

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Emery Gillespie

Chemistry

Find the molarity of HCl from neutralization of NaOH+HCl

I have 9.82mL of HCl and 14.44mL NaOH. The molarity of NaOH is. 5M

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Chemistry

What is an experimental control

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Chemistry

For any chemical system, the goal of breaking or making bonds is to (decrease or increase) the overall potential energy of the system?

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Chemistry

If you purchased 2.31 μCi of sulfur-35, how many disintegrations per second does the sample undergo when it is brand new?

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Dennis Fernandez

Chemistry

If the theoretical yield of a reaction is 0.110 g and the actual yield is 0.104 g, what is the percent yield?

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