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Chemistry

How much energy would be absorbed as heat by 75 g of iron when heated from 295 K to 301 K?

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Chemistry

im drawing a steven universe themed character she is shy and her wepon is a pair of dull sizzers and her emotions control her physical form / state like if she is sad she will melt what do you think it is a mettle not a gem and its gallium

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Chemistry

How are muscles and bones related?

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Dominik Daniels

Chemistry

Approximately how many atoms thick is a cell membrane, assuming all atoms there average about twice the size of a hydrogen atom? Assume that a hydrogen atom is about 10-10 m big.

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Chemistry

This is the process of sharing ideas, information, and opinions.

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Chemistry

How to balance chemical formulas

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Chemistry

What visible evidence indicates that a solution is saturated?

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Chemistry

Le Châtelier's principle states that if a stress is applied to a system at equilibrium, the system will shift to relieve that stress. This is true for all types of equilibrium, including the dissolution of salts that are only sparingly soluble. Here is the chemical reaction that represents solid barium sulfate dissolving in water: BaSO4 (s) ⇌Ba2 + (aq) + SO42 - (aq) Ksp = 1.1*10-10

Which of the following actions would shift this reaction toward solid barium sulfate?

Add more barium sulfate. Add more sulfate ions. Remove sulfate ions. Remove barium ions.

In which of the following would barium sulfate be least soluble?

pure water

1 M NaNO3

1 M K2SO4

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Chemistry

How to rank the atoms in each group in order of increasing size?

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Chemistry

What is a substance that has mass and volume

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Chemistry

Why is it advantageous to produce plutonium - 239

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Chemistry

Calculate the mole fraction of solvent for a sucrose solution contains 20.0 g of sucrose (molar mass 342.3 g/mol) dissolved in 100.0 g of water at 25oc.

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Chemistry

Fossils found in layers of sediment give us clues to Earth's past. Based on the fossil record of this area, we can assume that this area was A) once a desert. B) once underwater. C) much colder in the past. D) located in a different place on Earth.

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Donovan Michael

Chemistry

Cuales son los nombres que puede tener el primer numero cuántico

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Chemistry

Consider sweetened ice tea. Which of the following is a solute?

a. water

b. the beverage itself

c. ice

d. sugar

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