12 Questions
What is the term for a simple substance that cannot be broken down into smaller parts or changed into another substance?
Element
When is a chemical equation considered balanced?
When the number of atoms in the reactants equals the number of atoms in the products for each element
What happens to the mass of an object if it is torn apart or burned?
The mass remains unchanged both when torn apart and burned
What are all matter made of according to the text?
Atoms
Where is the atomic number located in the element square?
Top of the box
How do you find the atomic mass of an atom?
By adding protons and neutrons in the atom
What does the Law of Conservation of Matter/Mass state?
Matter is neither created nor destroyed in a chemical reaction.
What does it mean for a chemical equation to be balanced?
The number of atoms you put in must equal the number of atoms at the end of your reaction.
Does changing the shape of an object change its mass? Why or why not?
No, because shape does not alter mass; you cannot create or destroy more mass.
Which subatomic particle lets us know which atom a Bohr model represents?
Protons
What are rows on the periodic table and which direction do they go?
Periods, horizontal
What is an atom?
The smallest particle containing the properties of a substance.
Test your understanding of the Law of Conservation of Matter/Mass, balanced chemical equations, and the relationship between shape and mass in objects. Learn about how matter is neither created nor destroyed in chemical reactions.
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