Atoms & Molecules
DOUBLE JEOPARDY: Molecules are made of ______.
a. Cells
b. Waves
c. Different proportions and quantities of atoms
d. Different proportions and quantities of compounds
C. Different proportions and quantities of atoms
What are the signs of a chemical reaction?
a. gas production
b. cannot be easily reversed
c. color change
d. odor
e. all of the above
e. all of the above
How many total ATOMS are in a molecule of water? (H2O)
a. 4 atoms
b. 2 atoms
c. 6 atoms
d. 3 atoms
d. 3 atoms
Solid particles are ________.
a. Loosely bonded and flowing
b. Tightly packed
c. Free to fly around
d. Very hot
b. Tightly packed
DOUBLE JEOPARDY: If you combine two substances, then _________.
a. The combined weight will be greater than the weight of each individual substance
b. The combined weight will be the same as the weight of the two individual substances
c. The combined weight will decrease
d. The combined weight will increase
b. The combined weight will be the same as the weight of the two individual substances
The smallest part of an element is _________.
a. The atom
b. The compound
c. The Periodic Table
d. None of these
a. The atom
DOUBLE JEOPARDY: Change in state of matter is a _________.
a. chemical change
b. physical change
c. permanent change
d. unchangeable
b. physical change
NaO3
a. Element
b. Compound
c. Mixture
b. Compound
The temperature at which a solid changes into a liquid.
a. Boiling point
b. Melting point
c. Freezing point
b. Melting point
What is the most common element on Earth?
a. Hydrogen
b. Nitrogen
c. Oxygen
d. Silicon
b. Nitrogen
AMU stands for:
a. Atomic Mass Units
b. Atomic Moving Usable Energy
c. Always Mind Unstable
d. Astronomic Metric Units
a. Atomic Mass Units
The ingredients in a chemical reaction are called:
a. products
b. ingredients
c. reactants
d. samples
c. reactants
The atomic number of an element (top right corner of the element box on the Periodic Table) means what?
a. The number of protons
b. The atomic mass
c. The number of neutrons
d. The electric charge
a. The number of protons (and electrons)
DOUBLE JEOPARDY:
What is a substance that is together, but NOT bonded together? (ex: fruit salad)
a. Atom
b. Element
c. Compound
d. Mixture
d. Mixture
What is the acronym that means ENERGY produced by cellular respiration?
a. MMP
b. ADP
c. AMP
d. ATP
d. ATP (adenosine triphosphate)
The mass of an atom ____________.
a. Is the mass of the protons and electrons added together
b. Is the mass of the neutrons and electrons added together
c. Is the mass of the neutrons and protons added together
d. None of these
c. Is the mass of the neutrons and protons added together
One difference between a physical change and a chemical change is ___________.
a. A chemical change creates a new substance with different chemical properties
b. How long they will last
c. One will explode and the other will not
d. Physical changes cannot be reversed
a. A chemical change creates a new substance with different chemical properties
Which subatomic particle of an atom bonds with other atoms in chemical reactions?
a. proton
b. electron
c. neutron
b. electrons
If a liquid is heated, what type of change occurs?
a. Increased energy
b. Condensation
c. Freezing
d. Sublimation
a. Increased energy
All energy on Earth begins from:
a. Producers (plants)
b. Consumers (animals)
c. The Sun
d. The Moon
c. The Sun
The Bohr Model shows that __________.
a. Electrons are on the inside
b. The protons orbit around the nucleus
c. The electrons orbit outside in different energy shells
d. The electrons are still
c. The electrons orbit outside in different energy shells
An element is made up of _______.
a. Many types of atoms
b. Many types of molecules
c. At least two types of atoms
d. One type of atom
d. One type of atom
What are electrons in the outermost shell of an atom called?
a. Orbiting electrons
b. Central electrons
c. Valence electrons
d. Awesome electrons
c. Valence electrons
When a substance changes from a solid to a gas and does NOT go through the liquid phase, it is called what?
a. Evaporation
b. Condensation
c. Freezing
d. Sublimation
d. Sublimation
Name the 3 subatomic particles and their charges (positive, negative, or neutral)
Protons - positively charged (+)
Electrons - negatively charged (-)
Neutrons - neutral/no charge (0)