Properties
A chemist combines 6 atoms of Na with 8 atoms of Cl. How many atoms of Na must be in the product?
What is 6 atoms?
A change in color indicates this type of change
What is chemical?
This type of chemical equation proves the Law of Conservation of Mass
What is balanced?
The small, lower number in an element/compound
What is a subscript?
This is what starts or increases the rate of a chemical reaction
What is a catalyst?
The process of being able to flatten aluminum is related to which property of aluminum?
What is malleability?
If you combine 5 grams of iron with 10 grams of sulfur. Based on the Law of Conservation of Mass, what would be the resulting mass of the product?
What is 15 grams? (Mass/matter can never be created or destroyed)
These are the elements/compounds on the left side of the arrow in a chemical reaction/formula
What are reactants?
This is the ONLY number you can change when balancing a chemical equation.
What is the coefficient?
Mixing vinegar and baking soda gives you a gas which shows this has occurred
What is a chemical reaction?
The rusting of iron shows this property of iron
What is reactivity?
In a chemical reaction, the number of atoms in the reactants will always be equal to...
What is the number of atoms in the products?
These are what we call the elements or compounds on the right side of the arrow in a chemical reaction
What are products?
This is the first step when determining if an equation is balanced or not
What is create a list/inventory of elements/compounds and count the atoms?
When a solid precipitate is formed after mixing together liquids, gases, or metals, you know this has occurred.
What is a chemical change?
Temperature, melting point, and mass are all known as this type of property of matter
What are physical properties?
This is another name for a physical change.
What is a change in state of matter?
In a chemical reaction, this is true about the number of atoms present in the reactants and the number of atoms present in the products.
What is the number of atoms in the reactants must EQUAL the number of atoms in the products.
The mass of the products is always equal to the mass of these
What are reactants?
A bright blue flame appears when holding a metal near a heat source. What type of change is indicated?
What is a chemical change?
During a physical change of matter, state, temperature, and volume may all change but this will NEVER change.
What is mass?
Splitting a water molecule by breaking the bonds of Hydrogen and Oxygen indicate this type of change.
What is chemical?
The relationship between the products and reactants has this effect on mass (according to the Law of Conservation of Matter)
What is the total mass of the reactants is equal to the total mass of the products.
This formula shows what type of reaction has occurred:
Na + Cl = NaCl
What is a chemical reaction?
Chemical reactions always result in the formation of this
What is a brand new substance?