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Questions (6)
Which statement is true about atoms?
A) Most of the mass of an atom is found in the electron cloud. B) Protons and electrons both
7 answers
2,093 views
What types of atoms have the same number of electrons and protons?
A) all atoms B) stable atoms C) ions D) metalloids
6 answers
1,170 views
Raya collected data about a substance. She noted that: -- its density is 10 g/cm3 -- its melting point is 200 degrees celcius --
2 answers
986 views
Two friends are discussing physical and chemical changes. Anna says that when you eat, it is a physical change because when you
2 answers
967 views
A 300 kg tree burns to the ground, leaving only ashes. The weight of the ashes after the burn is 10 kg. Explain these results.
A)
3 answers
1,039 views
Which of the following scenarios is an example of thermal energy being removed and the particles slowing down due to this change
7 answers
1,521 views
