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