I want to check my answers to see if i got them right what do you think?
A.
How many electron...
Chemistry, 23.02.2021 23:30 applejulianamoreno
I want to check my answers to see if i got them right what do you think?
A.
How many electrons are in a neutral atom of lithium?
B.
How many neutrons are in an atom of Mg-25?
C.
What is the mass number of an atom with 5 protons and 7 neutrons?
D.
When an atom is charged, it is called an ion. How many electrons are in O2-?
E.
How many electrons are in Mg2+?
Answers: 2
Chemistry, 22.06.2019 05:30
Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat
Answers: 1
Chemistry, 22.06.2019 08:40
Which statement can best be concluded from the ideal gas law?
Answers: 2
Chemistry, 22.06.2019 10:30
Earth's axis of rotation is tilted at an angle of 23.5 degrees. what is one change you would see on earth if its axis was not tilted?
Answers: 3
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