CHEM 103 EXAM 1 EXAM WITH CORRECT QUESTIONS AND ANSWERS 2025

CHEM 103 EXAM 1 EXAM WITH
CORRECT QUESTIONS AND ANSWERS
2025

Atoms are made up of protons, neutrons, and electrons. The charge on an electron is ____ -


CORRECT-ANSWERS-1




Atoms are made up of protons, neutrons, and electrons. The charge on a neutron is ____ -


CORRECT-ANSWERS0




How many atoms are there in a single molecule of glucose (C6H12O6)? - CORRECT-ANSWERS24




How many atoms are there in a single molecule of ethanol (C2H6O)? - CORRECT-ANSWERS9




Hydrogen makes _____ bond(s) - CORRECT-ANSWERS1




Oxygen makes _____ bond(s) - CORRECT-ANSWERS2

, Carbon makes _____ bond(s) - CORRECT-ANSWERS4




How many protons are in phosphorus? - CORRECT-ANSWERS15




How many protons are in zinc? - CORRECT-ANSWERS30




How many protons plus neutrons are there in the most common isotopes of oxygen? -


CORRECT-ANSWERS16




The number of electrons in a neutral atom - CORRECT-ANSWERSis the same as the number of


protons.




The number of neutrons in an atom is always the same as the number of protons. - CORRECT-


ANSWERSFalse




Which of the following is a mixture?


distilled water


a sample of carbon dioxide