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