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WorksheetsChemistry Quiz
Total questions: 15
Worksheet time: 8mins
Copper and gold have similar reactive properties. On the periodic table of the elements, these elements are most likely to
be in the same group.
be in the same period.
have nearly the same mass.
have the same number of protons.
An atom has a mass of 24 and a nuclear charge of 12. Which statement about the atom is accurate?
It has twice as many protons as electrons.
It has twice as many neutrons as protons.
It has equal numbers of neutrons and protons.
It has equal numbers of nuclear particles and electrons.
What is the chemical formula of copper (I) sulfate?
CuSO₄
Cu₂SO₄
Cu(SO₄)₂
Cu₂(SO₄)₂
Magnesium bromide is one of the most abundant compounds found in seawater. Which formula correctly represents magnesium bromide?
MgBr
Mg Br₂
Mg₂ Br
Mg₃Br₂
An alpha particle that is emitted as nuclear radiation has the same structure as a
hydrogen nucleus.
helium nucleus.
neutron.
electron.
What type of chemical reaction occurs when the body breaks down fats and sugars that supply it with energy?
endothermic
exothermic
electrical
physical
What is the correct electron dot formula for carbon dioxide?
Option A
Option B
Option C
Option D
Which atom is the product of beta decay of xenon-140?
54140Xe→?+−10e
54139Xe
53140I
55140Cs
55141Cs
Which set of elements has similar bonding properties?
Cl, Br, and F
K, Ca, and Sc
Kr, Cl, and O
Be, C, and O
What distinguishes a conductor from an insulator?
the rate that neutrons travel through the material
the ease of flow of electrons through the material
the amount of electrons present
the amount of neutrons present
A student is investigating different types of reactions. Which of the following actions would be an example of an endothermic reaction?
evaporating water
melting ice cubes
burning sugar
baking bread
Which types of electromagnetic waves are ionizing radiation?
microwaves and infrared light
microwaves and X-rays
gamma rays and infrared light
gamma rays and X-rays
Which statement best describes how potassium bonds with bromine?
Potassium will donate an electron to bromine.
Bromine will donate an electron to potassium.
Bromine will donate seven electrons to potassium.
Potassium will share seven electrons with bromine.
Which of the following is the best Lewis dot structure for the product of sodium and chlorine?
Option A
Option B
Option C
Option D
The correct Lewis dot structure shows how the shape of a water molecule is
linear and polar.
linear and nonpolar.
bent and polar.
bent and nonpolar.
