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Atmospheric pressure in interstellar space is approximately 1 × 10-17 torr at a temperature of -173 °C. How many gas molecules are present in 25,000 L of interstellar space (about the volume of a bedroom) ?
Q2: The attraction of an ion with a
Q20: The formula for copper (II)hydroxide is Cu(OH)<sub>2</sub>.
Q32: Consider the following reversible reaction at equilibrium:
Q33: Uranium-235 is used in nuclear weapons. This
Q38: When a positron is emitted from the
Q57: A salt derived from a strong base
Q58: Which species is the conjugate acid of
Q73: Which value (if any)in each pair corresponds
Q78: Which of the following energy quantities is
Q106: All salts where the anion is derived