R it answe know it dont If you dont
Fill in the blank: The number of molecules in a chem...
R it answe know it dont If you dont
Fill in the blank: The number of molecules in a chemical reaction are indicated by the
The on the left side of an equation must be balanced with the atoms on the right side of the equation.
Question 2 options:
total number of molecules
total number of atoms
total number of compounds
free electrons
What happens in a covalent bond between atoms?
Question 3 options:
each atom shares electrons so that they are both stable
electrons are lost by one atom and gained by the other
the smaller atom’s neutrons repel the electrons
the electrons flow in an electric current away from the bonded pair of atoms
(4) Fill in the blank: What is the correct name for the ionic compound Ca2P5?
What does a chemical change always result in?
Question 5 options:
precipitate
new reactant
increased activation energy
new substance
Metals tend to electrons and become .
Question 6 options:
lose, anions
lose, cations
gain, anions
gain, cations
How many valence electrons do most atoms need to have in their outer shell to be most stable?
Question 7 options:
8
1
4
6
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