subject
Chemistry, 04.10.2020 07:01 deemy0292

All of the following statements are true EXCEPT * O all atoms of a given element have the same mass number
for any neutral atom, the number of electrons is equal to the number of protons
the atomic number equals the number of protons in an atom
isotopes of atoms contain the same number of protons, but different number of
neutrons

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 17:10
For which one of the following reactions is the value of δh° rxn equal to δh° f for the product? a. 2 h2 (g) + o2 (g) → 2 h2o (l) b. n2 (g) + o2 (g) → 2 no (g) c. 2 h2 (g) + o2 (g) → 2 h2o (g) d. h2o (l) + 1/2 o2 (g) → h2o2 (l) e. none of the above
Answers: 1
question
Chemistry, 22.06.2019 01:30
There are main groups in the modern periodic table of elements
Answers: 1
question
Chemistry, 22.06.2019 01:30
Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy
Answers: 1
question
Chemistry, 22.06.2019 09:00
What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.
Answers: 1
You know the right answer?
All of the following statements are true EXCEPT * O all atoms of a given element have the same mass...
Questions
question
Mathematics, 26.05.2020 23:57