SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Basic Chemistry
Start Test
Study First
Subjects
:
science
,
chemistry
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Atoms that have lost or gained electrons
ionic bond
inorganic compound
isotope
ion
2. A covalent bond in which four valence electrons are shared between two atoms
double bond
chemical reaction
atom
covalent bond
3. Anything that occupies space and has mass
compound
matter
atom
organic compound
4. The smallest particle of an element that retains the properties of the element
atom
covalent bond
neutron
neutron
5. A covalent bond in which one pair of electrons is shared
single bond
double bond
molecule
chemical formula
6. Interaction of substances that lead to the formation of new substances
organic compound
element
neutron
chemical reaction
7. Subatomic particle having a positive charge; found in nucleus
radioactive isotope
proton
isotope
product
8. Electrons in the outermost energy level; they are involved in bond formation
structural formula
single bond
chemical reaction
valence electrons
9. Substance made of two or more elements & one being carbon
neutron
molecule
atom
organic compound
10. Electrons in the outermost energy level; they are involved in bond formation
organic compound
nucleus
structural formula
valence electrons
11. Subatomic particle without a charge; found in nucleus
matter
atomic number
element
neutron
12. Ending materials of a reaction; found on right side of chemical equation
neutron
isotope
chemical reaction
product
13. Occurs when atoms share electrons
single bond
covalent bond
ion
product
14. Occurs when atoms share electrons
nucleus
covalent bond
proton
atomic number
15. Protons and neutrons together; make up the center of an atom
atom
ionic bond
valence electrons
nucleus
16. A pure substance that cannot be broken down into other substances by chemical reactions
element
covalent bond
inorganic compound
chemical reaction
17. The smallest particle of an element that retains the properties of the element
valence electrons
atom
proton
nucleus
18. Identifies a specific element; equals the number of protons in an atom of each element
covalent bond
molecule
atomic number
ion
19. Subatomic particle without a charge; found in nucleus
valence electrons
nucleus
neutron
molecule
20. Substance containing two or more elements chemically combined in a fixed ratio
proton
radioactive isotope
compound
single bond
21. Indicates the number and types of atoms in a molecule
molecule
chemical formula
isotope
ionic bond
22. A covalent bond in which four valence electrons are shared between two atoms
inorganic compound
double bond
neutron
ion
23. Anything that occupies space and has mass
organic compound
compound
isotope
matter
24. A pure substance that cannot be broken down into other substances by chemical reactions
structural formula
element
proton
reactant
25. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy
chemical formula
reactant
double bond
radioactive isotope
26. Occurs when atoms transfer electrons to other atoms
inorganic compound
ionic bond
covalent bond
compound
27. Occurs when atoms transfer electrons to other atoms
structural formula
valence electrons
ionic bond
electron
28. Substance made of two or more elements & one being carbon
organic compound
valence electrons
covalent bond
compound
29. Atoms that have lost or gained electrons
chemical reaction
atom
ion
structural formula
30. Subatomic particle having a negative charge; not in nucleus but surrounds it
chemical reaction
electron
chemical reaction
atom
31. A covalent bond in which one pair of electrons is shared
double bond
radioactive isotope
inorganic compound
single bond
32. Atoms having the same numbers of protons but different numbers of neutrons
isotope
organic compound
molecule
single bond
33. Shows the number and types of atoms in a molecule and how they are arranged
compound
single bond
structural formula
compound
34. Atoms that are held together by covalent bonds
atom
element
double bond
molecule
35. Atoms having the same numbers of protons but different numbers of neutrons
isotope
atom
valence electrons
ion
36. Indicates the formation of new substances from previous substances
proton
atom
covalent bond
chemical reaction
37. Ending materials of a reaction; found on right side of chemical equation
chemical reaction
electron
product
element
38. Indicates the number and types of atoms in a molecule
inorganic compound
chemical formula
inorganic compound
molecule
39. Protons and neutrons together; make up the center of an atom
organic compound
nucleus
isotope
proton
40. Atoms that are held together by covalent bonds
isotope
product
reactant
molecule
41. Substance made of two or more elements & none of which is carbon
atomic number
inorganic compound
matter
radioactive isotope
42. Shows the number and types of atoms in a molecule and how they are arranged
structural formula
proton
element
inorganic compound
43. The starting materials for a reaction; found on left side of chemical equation
reactant
covalent bond
atom
compound
44. Interaction of substances that lead to the formation of new substances
atomic number
product
reactant
chemical reaction
45. Indicates the formation of new substances from previous substances
matter
chemical reaction
nucleus
proton
46. Subatomic particle having a negative charge; not in nucleus but surrounds it
atomic number
covalent bond
proton
electron
47. Identifies a specific element; equals the number of protons in an atom of each element
nucleus
inorganic compound
compound
atomic number
48. Substance containing two or more elements chemically combined in a fixed ratio
organic compound
electron
compound
reactant
49. The starting materials for a reaction; found on left side of chemical equation
reactant
matter
single bond
organic compound
50. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy
atom
valence electrons
reactant
radioactive isotope