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