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BSC1010 CH. 2 EXAM QUESTIONS AND VERIFIED ANSWERS RATED PASSED!!! LATEST UPDATE R199,62   Add to cart
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BSC1010 CH. 2 EXAM QUESTIONS AND VERIFIED ANSWERS RATED PASSED!!! LATEST UPDATE
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BSC1010 CH. 2 EXAM QUESTIONS AND VERIFIED ANSWERS RATED PASSED!!! LATEST UPDATE matter anything that takes up space and has mass element is a substance that cannot be broken down to other substances by chemical reactions compound is a substance consisting of two or more elements in a fixed ...

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  • September 22, 2024
  • 7
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bsc1010 ch 2 exam questions and verified answers

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BSC1010 CH. 2 EXAM QUESTIONS AND VERIFIED

ANSWERS RATED PASSED!!! LATEST UPDATE


matter


anything that takes up space and has mass


element


is a substance that cannot be broken down to other substances by chemical reactions


compound


is a substance consisting of two or more elements in a fixed ratio


what elements make up 96% of life


Carbon, hydrogen, oxygen, and nitrogen


what elements mostly make up the remaining 4%


calcium, phosphorus, potassium, and sulfur


Trace elements


are those required by an organism in minute quantities


atom

, is the smallest unit of matter that still retains the properties of an element

Atoms are composed of subatomic particles


Neutrons and protons form the


atomic nucleus


daltons


Neutron mass and proton mass are almost identical and are measured in


atomic number


is the number of protons in its nucleus


mass number


is the sum of protons plus neutrons in the nucleus


Atomic mass


the atom's total mass, can be approximated by the mass number


Isotopes


are two atoms of an element that differ in number of neutrons


Radioactive isotopes


decay spontaneously, giving off particles and energy


Energy


is the capacity to cause change


Potential energy

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