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