Atoms, Molecules, Compounds
The smallest unit of matter which has properties of a chemical element.
What is an atom?
These are the ingredients of a reaction; they are on the left side of the arrow.
What are reactants?
Heat is released into the surroundings during this type of reaction.
What is exothermic reaction?
This is the name of the vertical columns on the periodic table.
What is groups.
This change only changes the appearance of a substance or object.
What is a physical change?
What are reactants and products?
Looking at NaCl and Cl2, which is a compound, and which is an element?
What is NaCl is a compound and Cl2 is an element.
A process that involves the rearrangement of atoms to form new substances.
What is a chemical reaction?
Photosynthesis is an example of this type of reaction.
What is endothermic reaction?
This is the side of the nonmetals on the periodic table.
What is the right side of the periodic table?
This is a type of change that is irreversible.
What is a chemical change?
Conservation of mass means that the amount of products equals....
What is the amount of reactants?
What are the three particles inside an atom?
What is protons, neutrons, and electrons?
The symbolic representation of a chemical reaction using symbols and chemical formulas.
What is a chemical equation?
What is endothermic reaction?
This is the reason that the transition metals are special on the periodic table.
What is they can have multiple charges?
Rusting is a sign of this type of change.
What is a chemical change?
Bonds are broken on this side of a chemical equation.
What is the reactants?
Protons determine which element an atoms belongs to.
What is the name of the number in front of a compound or molecules in a chemical equation?
What is a subscript?
Dissolving salt in water is an example of this type of reaction.
What is a endothermic reaction.
This is the name for the number of protons in a element.
What is the atomic number?
A chemical change must happen for a _________ to take place.
What is a chemical reaction?
Why is mass conserved in this chemical equation?
4 Fe + 3 O2 → 2 Fe2O3
What is there are an equal number of 4 Fe and 6 O atoms on each side?
What does the kinetic theory of matter mean?
What is that atoms and molecules are in constant motion?
Every chemical reaction involves a change in
What is bonds, energy, etc.?
Heat is a product in this type of reaction.
What is an exothermic reaction?
List at least 3 groups on the periodic table.
What is alkali metals, alkali earth metals, transition metals, noble gases, halogens, lanthanides, and actinades?
List at least 3 signs of a chemical change that we have not mentioned yet.
What is effervescence, gas production, light production, change in temperature?
Why is mass not conserved in this equation?
P4O10 + H20 → H3PO4
What is there are 4 P, 10 O, and 2 H atoms on the left side, and 3 H, 1 P, and 4 O atoms on the right side.