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