Physics, 10.11.2021 23:40 joooselinn9688
Is the following sentence true or false?
Dissolving by ionization is a physical change.
Answers: 1
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Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?
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The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water
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3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?
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Physics, 22.06.2019 18:00
Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.
Answers: 2
Is the following sentence true or false?
Dissolving by ionization is a physical change....
Dissolving by ionization is a physical change....
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