Have an account?
Skip to Content
Build your own quiz
Suggestions for you
56 questions
Show Answers
See Preview
- 1. Multiple ChoiceHow many elements are in C6H12O6?1234
- 2. Multiple ChoiceHow many atoms of carbon (C) are in C6H12O6?361224
- 3. Multiple ChoiceElement or compound?
H2Oelementcompound - 4. Multiple Choice
The red numbers in the image below represent ________subscriptscoefficientsI don't know, and don't want to tryNone of the answers are correct - 5. Multiple ChoiceThe substances at the beginning of a chemical equation are called the ____productyieldchemical symbolreactants
- 6. Multiple ChoiceIn the equation, 2Mg + O2 ---> 2MgO, which are the reactants?Mg and OMgOMg and MgOO and MgO
- 7. Multiple ChoiceIn a chemical reaction, everything to the rightof the arrow is called ______________.ProductsYieldsMoleculesReactants
- 8. Multiple ChoiceIs the following equation balanced or unbalanced?
Fe + S --> FeSbalancedunbalanced - 9. Multiple ChoiceHow many Hydrogen are in 4H2O?6824
- 10. Multiple ChoiceHow many O's are in Al₂(SO₄)₃412724
- 11. Multiple Choice
The Law of Conservation of Mass States
Energy cannot be created nor destroyed, it can only change form.
Mass cannot be created nor destroyed, it can only change form.
Matter cannot be created nor destroyed, it can only change form.
Mass can be created or destroyed, it cannot change form.
- 12. Multiple Choice
In this chemical equation , CO2 and 2H2O are called the...
Products
Reactants
Coefficient
Subscript
- 13. Multiple Choice
In this chemical equation ,the small numbers dropped down below the letters like the 4 in CH4 are known as the
Products
Reactants
Coefficient
Subscript
- 14. Multiple Choice
If you have 15 grams of Baking Soda and 20 grams of Vinegar as products, what would you expect the mass of your reactants to be?
15 grams
20 grams
5 grams
35 grams
- 15. Multiple Choice
If you have 15 grams of Baking Soda and 20 grams of Vinegar as products, what would you expect the mass of your reactants to be?
15 grams
20 grams
5 grams
35 grams
- 16. Multiple ChoiceHow many valence electrons does calcium have?2467
- 17. Multiple ChoiceWhen an atom loses an electron, it becomes a:positive ionnegative ionneutral ionneutral atom
- 18. Multiple ChoiceWhich of the following is NOT a property of ionic compounds?They have very high melting pointsThey conduct electricity when in solutionThey have high boiling pointsThey are insoluble in water
- 19. Multiple ChoiceIonic compounds are formed when one or more valence electrons are transferred from _____a nonmetal atom to a metal atoma nonmetal atom to a nonmetal atoma metal atom to a nonmetal atoma metal atom to a metal atom
- 20. Multiple ChoiceHow are covalent bonds explained?When one atom takes the other atom's electronWhen the atom shares an electron with an another atomWhen the two nucleus mergeWhen the neutrons leave the nucleus
- 21. Multiple ChoiceWhat two types of atoms make a covalent bond?2 Nonmetals1 Nonmetal and 1 Metal2 Metals2 Noble Gases
- 22. Multiple ChoiceWhat is the correct formula for this molecule?NHN3HNH3NH4
- 23. Multiple ChoiceIn the correct Lewis Structure for methane (CH4), how many unpaired electrons can be found around Carbon?0248
- 24. Multiple ChoiceA(n) _________ is an ion with a positive (+) charge.anioncationionsolute
- 25. Multiple ChoiceMagnesium bromide is an ionic compound with the chemical formula MgBr₂. What does the "2" tell you?There are 2 bromide ions for every magnesium ionBromide has a 2- chargeBromide has a 2+ chargeThere are 2 magnesium ions to every bromide ion
- 26. Multiple ChoiceIn the chemical formula for an ionic compound, which item is written first?positive ionnegative ionsubscriptthe female
- 27. Multiple ChoiceElements in Group 1 lose one electron to form ions with a _________________ charge.1+2+01-
- 28. Multiple ChoiceA charged particle that has gained at least one electron is called a(n) _____.AnionCationAnonionchemistry cat
- 29. Multiple Choice
Part of the chemical reaction where heat is released.
endothermic
exothermic
hot
cold
- 30. Multiple Choice
A drawing in which only valence electrons are represented around an element's symbol.
coefficient
subscript
e-dd (electron dot diagram)
reactant
- 31. Multiple Choice
When 2 or more atoms are joined together.
compound
molecule
product
reactant
- 32. Multiple Choice
Used in front of a compound in order to balance it.
Coefficient
subscript
superscript
- 33. Multiple Choice
Reaction that creates a new substance
Physical Reaction
Chemical Reaction
product
reactant
- 34. Multiple Choice
When a substance changes phases or a reversible change takes place
Chemical change
Physical change
- 35. Multiple Choice
Peeling a potato is a
chemical reaction
physical change
- 36. Multiple Choice
A person chews a breakfast burrito for breakfast. It gave her a burst of energy in gym class. Choose 2
chewing is a physical change
burst of energy is a chemical reaction
chewing is a chemical reaction
burst of energy is a physical change
- 37. Multiple Choice
Marcia is performing a lab. The mass of her reactants are H 50 grams and O 25 grams. She stated she ended with 65 grams of water. Could she be right?
Not Sure....
No, this violates the law of conservation of mass
Yes, she's close enough, water can evaporate
- 38. Multiple Choice
Balance the following equation:
SnO2 + H2 → Sn + H2O. (The 2's present here are subscripts)
2SnO2 +2 H2 → Sn + 2H2O
SnO2 + H2 → Sn + H22O
SnO2 + 2H2 → Sn + 2H2O
- 39. Multiple Choice
A chemical symbol
is an abbreviation for a reaction
tells you the name of an element
is an abbreviation for the name of a chemical element
- 40. Multiple Choice
Horizontal row on periodic table
group
period
row
column
- 41. Multiple Choice
Vertical row on periodic table
group
period
row
- 42. Multiple Choice
Melting Ice is an example of a _________________ change, while a burning piece of paper is an example of a _______________ change.
Chemical; physical
Physical; chemical
Permanent; temporary
- 43. Multiple Choice
Which is an example of a physical change?
Lighting a match
Chopping wood
Baking a cake
Rusting iron
- 44. Multiple Choice
Which of the following is an example of a chemical change?
Lighting a match
Dying a t shirt
Water evaporation
cracking an egg shell
- 45. Multiple Choicea copper penny turning greenish after a few years.Chemical ChangePhysical Change
- 46. Multiple ChoiceBaking a cake by mixing flour, sugar, chocolate powder, eggs, and milk, and then heating them in the oven.Chemical ChangePhysical Change
- 47. Multiple ChoiceIn chemical reactions, the law of conservation of mass is......disobeyednot trueobeyedused sometime
- 48. Multiple ChoiceWhich of the following models best demonstrates a balanced chemical equation?FGHJ
- 49. Multiple ChoiceIn a chemical equation, is it true that -the reactant side and product side can have different numbers of atoms for each elementthere can be different elements on the reactant side and the product sidean element or compound must be accompanied by a phase changethe coefficients indicate the number of molecules of each reactant used and the number of molecules of each product made
- 50. Multiple ChoiceFor an investigation a student poured a blue solution of CuSO4 into a beaker. The student placed a shiny, silver-colored strip of zinc metal in the solution and observed the changes.
The student inferred that a chemical reaction occurred. What evidence supports this inference?A dark solid formed on the zinc metal.
The zinc metal remained silver-colored and shinyThe CuSO4 solution turned blue when the zinc metal was added.None of these - 51. Multiple ChoiceWhich of the following equations demonstrates an actual chemical reaction that forms a new substance?ABCD
- 52. Multiple ChoiceWhich of these formulas contain equal numbers of nitrogen atoms?Formulas I and IIIFormulas I and IVFormulas II and IIIFormulas I, II, and V
- 53. Multiple ChoiceTwo clear colorless solutions were combined.
The student observed that the temperature changed from 25 •C to 23 •C when the solutions were combined and that a white substance rapidly formed and settled to the bottom of the container. What most likely happened to produce these results?One of the original compounds came out of solutionThe solutions reacted chemicallySome of the water froze into ice crystalsRapid evaporation of water occurred, leaving a solid - 54. Multiple ChoiceAll of the following reactions are correctly balanced except-ABCD
- 55. Multiple Choice
A scientist performed four investigations using eight different liquids. In each investigation, the scientist combined two of the liquids under a fume hood and recorded observations in the table below.In which investigation is it least likely that the liquids reacted chemically?
1
2
3
4
- 56. Multiple Choice
Which of these is NOT a sign that a chemical change has occurred?
A loss of transparency
An unexpected color change
A temperature change
The formation of a precipitate
- Answer choicesTagsAnswer choicesTags