Physics, 05.10.2019 12:30 00bebebeauty00
When an oxygen atom forms an ion, it gains two electrons. what is the electrical charge of the oxygen ion?
a.
+1
b.
-1
c.
-2
d.
+2
Answers: 1
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How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7
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Which car has the most kinetic energy? a. a car of mass 1000 kg with a speed of 3 m/s b. a car of mass 2000 kg with speed 7 m/s c. a car of mass 1000 kg with speed 7 m/s d. a car of mass 2000 kg with speed 3 m/s
Answers: 1
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The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .
Answers: 3
When an oxygen atom forms an ion, it gains two electrons. what is the electrical charge of the oxyge...
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