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