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Chemistry
Kayden Spencer
a day ago
Potassium forms ions with a charge of + 1 (K+). Iodine forms ions with a charge of - 1. Selenium forms ions with a charge of - 2 (Se2-). Imagine that Potassium ions and Selenide ions combine to form Potassium Selenide. What numbers would be in the place of X and Y in: KXSeY
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Chemistry
Kyleigh Moreno
a day ago
What mass of water (H2O) will be collected if 20.0 grams of oxygen gas (H2) are consumed
2H2+O2-->2H2O
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Chemistry
Guest
a day ago
Commercial concentrated aqueous ammonia is 28% NH3 by mass and has a density of 0.90 g/mL. You may want to reference (Pages 539 - 541) Section 13.4 while completing this problem. Part A What is the molarity of this solution?
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Chemistry
Chance Fry
a day ago
At a certain temperature, the reaction 2NO + Cl2 ⇌ 2NOCl has an equilibrium constant Kc of 45.0. A chemist creates a mixture with the following initial concentrations: [NO] = 0.10 M, [Cl2] = 0.20 M, and [NOCl] = 0.30 M. What will happen as the reaction begins?
A. [NOCl] will increase.
B. [NOCl] will decrease.
C. [NOCl] will stay the same.
D. There is not enough information to answer the question.
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Chemistry
Lilly Dawson
a day ago
A rectangle or solid of unknown density is 5 m long two meter high and 4 meters wide The mass of the solid is 300 g what is the volume and density of this problem
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Chemistry
Desirae Grant
a day ago
When a substance has a high density a large mass fits into a what volume
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Chemistry
Jameson Bender
a day ago
How much energy is required to heat a frozen can of juice (360 grams - mostly water) from 0 degrees Celsius (the temperature of an overcooled refrigerator) to 110 degrees (the highest practical temperature within a microwave oven) ?
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Chemistry
Carsen Armstrong
a day ago
A liquid-phase isomerization is carried out in a 1000-gal CSTR that has a single impeller located halfway down the reactor. The liquid enters at the top of the reactor and exits at the bottom. The reaction is second order. Experimental data taken in a batch reactor predicted the CSTR conversion should be 50%. However, the conversion measured in the actual CSTR was 57%.
A) Suggest reasons for the discrepancy and suggest something, e. g., a model, that would give closer agreement between the predicted and measured conversions. Back your suggestions with calculations. P. S. It was raining very hard that day.
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Chemistry
Ayden Poole
a day ago
What does an alkane compound look like?
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Chemistry
Azaria
a day ago
Is much debating and conversation a characteristic of Athens, Sparta, or both?
Sparta
Athens and Sparta
Athens
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Chemistry
Anika Short
a day ago
Calculate the external pressure that must be applied to seawater, 1.12 M total ion concentration at 10 degrees celsius if the maximum concentration allowed in the product water is 171 mg/L. Assume that all the dissolved salts in the product water is sodium chloride.
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Chemistry
Rowan Avery
a day ago
What happens to the carbon dioxide molecules as the gas is compressed and cooled?
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Chemistry
Rohan Dean
a day ago
How does energy move
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Chemistry
Jayleen Sullivan
a day ago
What causes geologic events such as earthquakes, volcanic eruptions, and the creation of mountains?
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Chemistry
Deshawn Stout
a day ago
A scientist measures the weights of two different animals. One is 250 grams. The other is 330 grams. In milligrams, what is the difference between the two weights of the animals?
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