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