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