The particles that make up matter are the atoms.
Atoms do not change during a chemical change. They do not either during a physical change.
During a chemical change molecules change but not the atoms. The atoms separate from the original molecules and form new molecules. Then moleculas change but atoms remain being the same before and after the chemical change.
For example, atoms of oxygen in molecules of O2 combine with atoms of hydrogen in molecules of H2 and they form the molecules of water H2O.
The atoms of O in O2 are the same atoms of O in H2O and the atoms of H in H2 are the same atoms of H in H2O. The molecules changed, from H2 and O2 to H2O, but the atoms are the same.
Answer:
Most people with Chagas disease became infected in rural areas of Mexico, Central America, and South America.
Explanation:
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Answer:
B,E,C, A
Explanation:
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1-Interphase
2-DNA
the stage in the life cycle of a cell where the cell grows and DNA is replicated
