Chemistry Review

Chemistry Review

Multiple Choice

Something that takes up space and has mass.

• volume
• matter
• mass
• density

Multiple Choice

What are the states of matter?

• solid, liquid, and juice
• solid and liquid
• solid and gas
• solid, liquid, and gas

Multiple Choice

Relationship between mass and volume

• Volume
• Density
• Displacement
• Matter

Multiple Choice

The measure of the pull of gravity on an object describes

• mass

• weight

• volume

• density

Multiple Choice

What term means "take up space"

• Volume

• Matter

• Mass

• Substance

Multiple Choice

You can measure ______ with grams.

• mass
• volume
• conductivity
• melting point

Multiple Choice

The amount of space something takes up

• density
• volume
• mass
• matter

Multiple Choice

Which state of matter has particles that are tightly packed?

• liquid
• gas
• solid

Multiple Choice

The amount of matter something contains is its ______________.

• gas
• solid
• weight
• mass

Multiple Choice

What is the outcome of observing a chemical property?

• Nothing

• A new substance is formed with different properties

• NaCl

• A rise in thermal conductivity

Multiple Choice

What effect does observing the physical properties of a substance have on the substance?

• Measuring physical properties changes the chemical identity of the substance

• Observing physical properties has no effect on the substance

• It makes to substance develop a deep seeded distrust of humans

• The substance will undergo an exothermic reaction

Multiple Choice

Choose the one that is a chemical property

• Magnetism

• Size

• Color

• Reactivity with water

Multiple Choice

Choose which one is a physical property

• Flammability

• Solubility

• Water Reaction

• Magic

Multiple Choice

• physical change
• chemical change

Multiple Choice

Physical or Chemical Change? Iron rusts

• Physical Change

• Chemical Change

Multiple Choice

Water freezing into ice is an example of a...

• Physical Change

• Chemical Change

Multiple Choice

The particles that are found in the nucleus of an atom are

• neutrons and electrons
• electrons only
• protons and neutrons
• protons and electrons

Multiple Choice

Which of the following is a negatively charged subatomic particle?

• Electron

• Proton

• Neutron

• Quark

Multiple Choice

How many protons does this atom have?

• 2.5
• 6
• 5
• 10.811

Multiple Choice

What is the atomic number of this atom?

• 4
• 5
• 9
• none of the above

Multiple Choice

Which of the following properties uniquely identifies every element?

• Number of valence electrons
• Phase at room temperature
• Number of protons
• Charge of the atom

Multiple Choice

What is a valence electron?

• an electron that is found in the outermost orbital of an atom. 
• an electron found in the innermost orbital of an atom.
• an electron found in the middle orbital.

Multiple Choice

B and C are found in the ______ of an atom.

• electron cloud
• Space
• Nucleus
• Outside

Multiple Choice

How many valence electrons does the element have?

• 1

• 2

• 3

• 4

Multiple Choice

What do the vertical columns on the periodic table tell us?

• The number of orbitals

• The number of valence electrons (electrons on the outer most shell)

Multiple Choice

What are the vertical columns on the periodic called?

• groups

• periods

• nonmetals

• metals

• metalloids

Multiple Choice

how many rows are on the table

• 4

• 5

• 6

• 7

Multiple Choice

how many rows are on the table

• 4

• 5

• 6

• 7

Multiple Choice

a row on the Periodic Table of Elements

• family

• period

• row

• isotope

Multiple Select

NaCl is a compound formed between

• Alkaline earth metal /Halogen

• Alkali metal/Halogen

• Halogen/Alkaline earth metal

• None of the above

Multiple Select

Noble gases are inert because

• They are highly reactive

• They are unreactive

• They are noble

• They have 8 electrons in their outer most energy level

Multiple Select

Which of the following is not an alkali metal?

• Cesium

• Francium

• Hydrogen

• Sodium

Multiple Select

Highly reactive

• Alkali metal

• Noble gases

• Rare earth metals

• Neon

Multiple Choice

Which elements are found on the left to middle of The Periodic Table?

• Metals

• Nonmetals

• Metalloids

• Candles

Multiple Choice

An ionic bond forms when

• valence electrons are shared back and forth (move between) two atoms.

• a sea of mobile electrons surround the cations and they then become negativly charged

• valence electrons are transferred from one atom to another, forming charged ions that are then pulled together by attraction between opposite charges

• none of the above

Multiple Choice

What type of bond is forming between oxygen and hydrogen?

• Ionic 
• Covalent

Multiple Choice

Structural differences between different chemicals can be represented in models of the particles. Which drawing BEST represents a compound?

• Picture A

• Picture B

• Picture C

• Picture D

Multiple Choice

Earth’s air is made up of molecules of different gases that are not joined chemically. Which term best describes air?

• compound

• mixture

• pure substance

• element

Multiple Choice

What kind of substance is composed of two or more elements that are chemically combined?

• element

• mixture

• solution

• compound

Multiple Choice

Is salt (NaCI) a compound or a element

• Compound

• element

Multiple Choice

Is salt (NaCI) a compound or a element

• Compound

• element

Multiple Choice

How many different elements are in an amino acid with the formula C₅H₁₁NO₂S?

• 5

• 20

• 18

• 4

Multiple Choice

Alanine is an amino acid with formula C₃H₇NO_2. How many atoms in all are in each molecule of alanine?

• 3

• 7

• 12

• 13

Multiple Choice

How many atoms of sulfur are in each molecule of H₂SO₄?

• 1

• 4

• 2

• 7

Multiple Choice

What does the number 4 represent in 4NH₃?

• Subscript

• Superscript

• Coefficient

Multiple Choice

What does the number ₃ represent in 4NH₃?

• Subscript

• Superscript

• Coefficient

Multiple Choice

Identify the reactant(s) and product(s) of the reaction.

• All three are reactants and none are products.
• Hydrogen and water are the reactants, and oxygen is the product.
• Water and oxygen are the reactants, and hydrogen is the product.
• Hydrogen and oxygen are the reactants, and water is the product.
  

Multiple Choice

The substances listed on the right side of a chemical equation are the

• Yields
• Reactants
• Products
• Precipitates

Multiple Choice

The Law of Conservation of Mass says that matter can neither be __________ or __________.

• created; destroyed

• recycled; renewed

• subtracted; added

• joined; separated

Multiple Choice

Why does this picture demonstrate the Law of Conservation of Mass?

• the number of atoms of each element are the same on both sides

• they start out separate and end up combined

• the same elements are used

• it doesn't demonstrate the Law of Conservation of Mass

Multiple Choice

Is this equation balanced?

• Yes

• No