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What is the charge on an ion that has an atomic number of 24…

What is the charge on an ion that has an atomic number of 24 and contains 23e-?

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The atom is the fundamental building block of everything we…

The atom is the fundamental building block of everything we hear, feel, see, and experience.

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A scientific law is a brief statement that summarizes past o…

A scientific law is a brief statement that summarizes past observations and predicts future ones.

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Silicon, which makes up about 25% of Earth’s crust by mass,…

Silicon, which makes up about 25% of Earth’s crust by mass, is used widely in the modern electronics industry. It has three naturally occurring isotopes, 28Si, 29Si, and 30Si. Calculate the atomic mass of silicon. IsotopeIsotopic Mass (amu)Abundance % 28Si 27.976927  92.23  29Si 28.976495  4.67  30Si 29.973770  3.10 

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Classify the following elements as metals, metalloids, or no…

Classify the following elements as metals, metalloids, or nonmetals.

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J.J. Thomson discovered the existence of protons.

J.J. Thomson discovered the existence of protons.

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The mass of a single arsenic atom is 1.244 × 10-22 g. This i…

The mass of a single arsenic atom is 1.244 × 10-22 g. This is the same mass as

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How much heat (kJ) is absorbed by 948.0 g of water in order…

How much heat (kJ) is absorbed by 948.0 g of water in order for the temperature to increase from to Water has a specific heat capacity of 4.186 J/g°C

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When an atom gains an electron, the resulting particle is ca…

When an atom gains an electron, the resulting particle is called

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Social benefits and costs are borne by consumers + producers…

Social benefits and costs are borne by consumers + producers + [s5p].

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