Which two notations represent atoms that are isotopes of the same element?

a. 12150sn and 11950sn

b. 12150sn and 12150sn

c. 198o and 199f

d. 3917cl and 3919k?

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What is the first step in balancing a redox reaction by the half-reaction method?

A gas of unknown identity diffuses at a rate of 83.3 mL/s in a diffusion apparatus in which carbon dioxide diffuses at the rate of 102 mL/s. Calculate the molecular mass of the unknown gas.

If the mass of solute doubles to 200mL of water, what happens to the amount of solute that will dissolve? * A) The mass will stay the same. B) The mass will be one-half. C) The mass will double.

Which economic goal does a society consider when deciding the best way to distribute its wealth?

What is the molarity of a solution that contains 4.53 moles of lithium nitrate in 2.85 liters of solution? 0.874 M 0.629 M 3.77 M 1.59 M 2.57 M 1.98 M

In which type of unconformity is the eroded rock tilted or folded? disconformity nonconformities angular unconformity scarp unconformity

A liquid solution can be made from solid, liquid, or gas solute.

How many liters of water can be made from 55 grams of oxygen gas and an excess of hydrogen at a pressure of 12.4 atm and a temperature of 850 c?

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