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. Substance containing two or more elements chemically combined in a fixed ratio
compound
ionic bond
neutron
neutron
2. Interaction of substances that lead to the formation of new substances
proton
chemical reaction
product
molecule
3. Substance containing two or more elements chemically combined in a fixed ratio
organic compound
neutron
covalent bond
compound
4. Indicates the formation of new substances from previous substances
atom
chemical reaction
organic compound
molecule
5. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy
proton
single bond
radioactive isotope
covalent bond
6. A covalent bond in which one pair of electrons is shared
single bond
double bond
product
ion
7. Atoms that have lost or gained electrons
structural formula
covalent bond
ion
ionic bond
8. Subatomic particle having a negative charge; not in nucleus but surrounds it
double bond
electron
chemical formula
compound
9. The smallest particle of an element that retains the properties of the element
chemical reaction
covalent bond
atom
compound
10. Indicates the formation of new substances from previous substances
matter
chemical reaction
neutron
element
11. A covalent bond in which four valence electrons are shared between two atoms
isotope
atom
double bond
single bond
12. Anything that occupies space and has mass
structural formula
double bond
radioactive isotope
matter
13. Substance made of two or more elements & none of which is carbon
product
organic compound
inorganic compound
ionic bond
14. The smallest particle of an element that retains the properties of the element
product
atom
element
inorganic compound
15. Indicates the number and types of atoms in a molecule
organic compound
molecule
chemical formula
radioactive isotope
16. Substance made of two or more elements & one being carbon
ion
organic compound
nucleus
atom
17. Ending materials of a reaction; found on right side of chemical equation
double bond
single bond
product
chemical formula
18. A pure substance that cannot be broken down into other substances by chemical reactions
element
electron
single bond
compound
19. Atoms having the same numbers of protons but different numbers of neutrons
atomic number
nucleus
product
isotope
20. Occurs when atoms transfer electrons to other atoms
chemical reaction
ionic bond
molecule
inorganic compound
21. A covalent bond in which one pair of electrons is shared
matter
ionic bond
single bond
element
22. Anything that occupies space and has mass
atom
matter
ion
atomic number
23. An unstable atom in which the nucleus decays (breaks down) releasing particles and energy
single bond
covalent bond
radioactive isotope
compound
24. Interaction of substances that lead to the formation of new substances
chemical reaction
element
isotope
ion
25. Occurs when atoms share electrons
covalent bond
structural formula
double bond
inorganic compound
26. A covalent bond in which four valence electrons are shared between two atoms
reactant
neutron
double bond
structural formula
27. Substance made of two or more elements & none of which is carbon
valence electrons
inorganic compound
chemical reaction
single bond
28. Atoms that are held together by covalent bonds
molecule
atom
radioactive isotope
covalent bond
29. Shows the number and types of atoms in a molecule and how they are arranged
organic compound
atomic number
ion
structural formula
30. Occurs when atoms transfer electrons to other atoms
double bond
product
molecule
ionic bond
31. Occurs when atoms share electrons
element
chemical reaction
covalent bond
reactant
32. Subatomic particle without a charge; found in nucleus
molecule
neutron
electron
proton
33. The starting materials for a reaction; found on left side of chemical equation
ion
ionic bond
neutron
reactant
34. Electrons in the outermost energy level; they are involved in bond formation
element
radioactive isotope
covalent bond
valence electrons
35. Indicates the number and types of atoms in a molecule
element
covalent bond
neutron
chemical formula
36. Protons and neutrons together; make up the center of an atom
compound
nucleus
atomic number
neutron
37. Ending materials of a reaction; found on right side of chemical equation
product
atomic number
double bond
element
38. Subatomic particle having a positive charge; found in nucleus
double bond
matter
product
proton
39. A pure substance that cannot be broken down into other substances by chemical reactions
radioactive isotope
atom
structural formula
element
40. Subatomic particle having a negative charge; not in nucleus but surrounds it
inorganic compound
nucleus
electron
neutron
41. Protons and neutrons together; make up the center of an atom
structural formula
nucleus
matter
electron
42. Subatomic particle without a charge; found in nucleus
radioactive isotope
electron
neutron
double bond
43. Atoms that are held together by covalent bonds
proton
molecule
chemical reaction
reactant
44. Identifies a specific element; equals the number of protons in an atom of each element
neutron
atomic number
molecule
atom
45. Shows the number and types of atoms in a molecule and how they are arranged
element
organic compound
ionic bond
structural formula
46. Substance made of two or more elements & one being carbon
organic compound
covalent bond
single bond
element
47. The starting materials for a reaction; found on left side of chemical equation
atomic number
covalent bond
organic compound
reactant
48. Atoms that have lost or gained electrons
structural formula
isotope
ion
atom
49. Identifies a specific element; equals the number of protons in an atom of each element
atom
element
chemical reaction
atomic number
50. Subatomic particle having a positive charge; found in nucleus
ionic bond
proton
element
covalent bond