Four samples of gas each exert 675 mm Hg in separate 3.5 L containers. What pressure will they exert if they are all placed in a single 3.5 L container?

a. 169 mm Hg

b. 675 mm Hg

c. 2.36 x 103

d. 2.70 x 103

The radius of an atom is closes to

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Which phrase is an example of what electrostatic forces hold together? A. Fr atoms and localized in iron B. He atoms in helium gas C. oxygen and hydrogen atoms in OH- D. Na + and Br - in NaBr I'm not sure about this one.

Boyle's Law for gases is: a. true for all gases only accurate at room temperature b. just a model and therefore accurate for no real gas c. accurate for most gases in most temperature ranges d.

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Ollie wants to sign up with an online social network called TeensMeet, which other kids at school have joined.

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Predict at least two circumstances (outside influences) that would cause a system in equilibrium to change the concentrations of its reactants or products.,

How many atoms are there in 2.3 grams of H?

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