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5.What characteristic distinguishes helium (He) from the other noble gases? Helium has a strong odor. Helium is highly reactive.
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What characteristic distinguishes helium (He) from the other noble gases?Helium has a strong odor. Helium is highly reactive.
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A spherical helium balloon has a diameter of 30 cm.How much helium is needed to fill the balloon, in cubic centimeters? Round
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2. asked by emerson
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Two alpha particles (helium nuclei) are held in place 1.0 nm apart (use 120 on for the diameter of a helium atom). Compare the
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2. asked by Dana
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Caitlyn bought a helium tank to fill spherical balloons for a party. If the diameter of the filled balloons are 14.4 inches, how
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2. asked by Anonymous
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a spherical balloon of diameter 2m is filled with helium.Assume STP .how much is contained in the balloon helium
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2. asked by Anonymous
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Helium BalloonsMalik is investigating the properties of helium. Malik finds the chart below about helium in a textbook. The
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Why will a balloon filled with helium float in the air? A. Helium is denser than air b. Helium is less dense than air c. Helium
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Oscar needs to fill a sphere-shaped balloon with helium. If the balloon has a diameter of 8 inches, what is the total amount of
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2. asked by silent
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A mole of helium gas contains 6.02x10^23 helium atoms. How many helium atoms are there in a micromole of helium? How many moles
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2. asked by sara
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