Chemistry » Page 75

Chemistry

Lilyana Alvarez

1. What is the oxidation number for the silver ion in tarnish?

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Chemistry

Jolee

What is the empirical formula for h2so4

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Chemistry

Gianni Pennington

Determine the volume of an object that has a mass of 455.6 g and a density of 19.3 g/cm3. (1cm3 = 1ml) select one:

a. 18.5 ml

b. 23.6 ml

c. 42.4ml

d. 31.2 ml

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Chemistry

Bradyn Merritt

9.98 kg of R-134a at 300 kPa fills a rigid container whose volume is 14 L. Determine the temperature and total enthalpy in the container. The container is now heated until the pressure is 600 kPa. Determine the temperature and total enthalpy when the heating is completed. Use data from the steam tables.

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Chemistry

Grace Krueger

Can anyone tell me about sulfuric acid in shampoo/soap?

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Chemistry

Francis Roman

How many grams of naoh would react with 507 g fecl2 in the reaction fecl2 + 2naoh fe (oh) 2 (s) + 2nacl?

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Chemistry

Cohen Kerr

At a certain temperature this reaction follows first-order kinetics with a rate constant of 0.184 s^-1? Suppose a vessel contains Cl_2 O_5 at a concentration of 1.16 M. Calculate the concentration of Cl_2 O_5 in the vessel 5.70 seconds later.

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Chemistry

Brodie

Which property of a rock determines its color

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Chemistry

Brodie Sampson

Why does it take much longer for a car to stop when applying the brakes at a speed of 60 miles per hour then it 50 miles per hour

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Chemistry

Medina

A fatty acid which contains only single covalent bonds between its carbon atoms is unsaturated.

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Chemistry

Alfonso Barton

Using the word bank explain why increasing the temperature increases the rate of reaction

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Chemistry

Kiley Bentley

7. Which statement is true about particles in ice and in boiling water?

A. Particles are the same.

B. Particles are just as far apart in each state.

C. Particles are moving faster in ice than in boiling water

D. Particles are further apart in ice than in boiling water.

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Chemistry

Frankfurter

A sample gaseous CO exerts a pressure of 45.6mm Hg in a 56.0L flask at 22 C. If the gas is released into a 2.70 x 10^4 liter room, what is the partial pressure of the CO in the room at 22 C?

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Chemistry

Genesis Frost

What effect does filtration have on water with a ph of 3?

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Chemistry

Richard Hendrix

The mass of an electron is approximately equal to 1 over 1,836 of the mass of 1. a positron 2. a proton 3. an atom of helium 4.

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