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WorksheetsChemistry Review
Total questions: 35
Worksheet time: 19mins
What is the smallest part of an element?
Nucleus
Proton
Atomic Mass
Atom
What is the center of an atom called?
Proton
Plasma
Core
Nucleus
Which particle in an atom has no charge?
Proton
Neutron
Electron
Nucleus
The __________________ tells how many protons there are in an atom.
Group
Period
Mass
Atomic Number
How many periods are there on the modern Periodic Table?
7
10
8
18
Which of the following substances is a compound?
Copper (Cu)
Oxygen (O)
Magnesium (Mg)
Salt (NaCl)
What kind of substance is composed of two or more elements that are chemically combined?
Element
Mixture
Particle
Compound
A combination of substances that are not chemically combined is called a(n):
Physical
Mixture
Element
Compound
A mixture in which the parts can be easily separated is called:
Elements
Heterogeneous
Compounds
Homogeneous
A student pours two elements together and they react to form matter with entirely different properties than the elements they started with. The student has made a(n):
Element
Compound
Homogeneous Mixture
Heterogeneous Mixture
A student dissolves salt into water. In what form is this matter?
Compound
Element
Homogeneous Mixture
Heterogeneous Mixture
Compounds can be separated into their individual parts by physical means.
True
False
Individual elements can be separated into something smaller.
True
False
Is the following diagram an example of an element, compound or mixture?
Compound
Element
Mixture
Is the following diagram an example of an element, compound or mixture?
Element
Compound
Mixture
Is the following diagram an example of an element, compound or mixture?
Element
Compound
Mixture
Determine if the following picture is an example of a homogeneous or heterogeneous mixture.
Homogeneous Mixture
Heterogeneous Mixture
Determine if the following picture is an example of a homogeneous or heterogeneous mixture:
Homogeneous Mixture
Heterogeneous Mixture
In a solution, the substance being dissolved is the ____________________.
solvent
liquid
gas
solute
A solution that contains all of the solute it can normally hold at a given temperature is __________________________.
saturated
concentrated
supersaturated
unsaturated
In soda, the solvent would be the _________________.
flavoring
water
sugar
carbon dioxide
Process in which particles of substances spread evenly throughout a mixture is called _________________.
soluble
dissolving
saturation
insoluble
In order for 2 substances to form a solution, the solute must be ________________________, or able to dissolve, in the solvent.
soluble
insoluble
dissolving
saturation
Which of the following is a chemical reaction?
Cutting a piece of paper into two pieces
Dropping a sliced orange into a vat of Sodium Dydroxide
Freezing liquid Mercury
Filling a balloon with air
Which of the following is a chemical reaction?
Ice cream melting
A bicycle rusting
Painting a wall blue
Making a sand castle
Which of the following is NOT a chemical reaction?
Slicing carrots
Dropping a fizzy tablet in a glass of water
Frying an egg
Making ATP in the human body
Which of the following is NOT a chemical reaction?
Shattering glass with a baseball
Lighting a match
Fireworks exploding
Baking a cake
Which of the following is a chemical reaction?
Burning a campfire
Slicing a pizza
Opening a jar of pickles
Boiling water
Which is a characteristic property of acids?
They turn blue litmus paper red
They turn red litmus paper blue
They taste bitter
They do not react with metals
Acids are described as corrosive because they _____.
turn litmus blue
taste bitter
“eat away” at other materials
feel slippery
pH = 7, pure water is an example
acid
base
neutral
mixture
pH greater than 7, baking soda is an example
acid
base
neutral
mixture
pH less than 7, orange juice is an example
acid
base
neutral
mixture
Which of the following is NOT an example of an acid?
bleach
stomach acid
lemon
milk
Which of the following is NOT an example of a base?
water
blood
baking soda
soap
