They're based on the results of your testing.
Answer:The easiest way to find the mass of anything is to weigh it. You're actually measuring the force of gravity on the object, and technically, you should divide the weight by the acceleration due to gravity to get the mass.
Explanation:
Answer:
no H2O molecules are produced:)
Explanation:
The minimum amount of energy that colliding particles must have for them to react.
3 covalent bonds (there are 2 electrons in the first orbital and 5 in the second. You still have room for three more)