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- 1. Multiple Choice
Which symbol shows a chemical reaction has occured?
A
B
C
D
- 2. Multiple Choice
A physical change is the same as a chemical change
TRUE
FALSE
- 3. Multiple Choice
Identify the product(s) in this word equation
Sodium
Sodium chloride
Sodium and Chlorine
Sodium and sodium chloride
- 4. Multiple Choice
In a word equation the REACTANTS
Are written on the right hand side of the arrow
Are produced in a chemical reaction
Are always the same
Are the substances that react together
- 5. Multiple Choice
The products in this reaction are?
Two solids
One solid and one gas
Three solids and a gas
Two solids and a gas
- 6. Multiple Choice
The new substances formed in a chemical reaction are called
Reactants
Atoms
Products
Reagents
- 7. Multiple Choice
What are the reactants in this word equation?
Carbon dioxide and oxygen
Carbon dioxide and water
Oxygen and glucose
Oxygen and water
- 8. Multiple Choice
In a chemical reaction...
New atoms are created
Atoms rearrange
Atoms are destroyed
Nothing Happens
- 9. Multiple Choice
In this chemical reaction zinc is a...
Product
Reactant
Neither
- 10. Multiple Choice
Magneisum reacts with oxygen to form magnesium oxide. The correct word equation is...
A
B
C
D
- 11. Multiple ChoiceHow many oxygen atoms are present in the following?
4Ca(OH)24681 - 12. Multiple ChoiceWhat is changed in a chemical reaction like this one?
NaOH + HCl → NaCl + H2Othe number of atoms is changedmolecules and compounds are changedatoms are changedelements are changed - 13. Multiple ChoiceWhich of the following is true?Na is a gasCl combusts when put in waterNaCl is very different than Na and ClCl is a metal
- 14. Multiple ChoiceWhich of the following can be broken apart in a chemical reaction?Noble gasesMolecules and compoundsonly moleculesonly compounds
- 15. Multiple ChoiceThe substances listed on the right side of a chemical equation are theYieldsReactantsProductsPrecipitates
- 16. Multiple ChoiceCaCO3 represents a chemicalSymbolFormulaSubscriptReaction
- 17. Multiple ChoiceThe substances listed on the left side of a chemical equation are theProductsCoefficientsPrecipitatesReactants
- 18. Multiple ChoiceIn chemical reactions, what does the principle of conservation of mass mean?Matter is not created or destroyed.The total mass of the reactants is greater than the total mass of the products.The total mass of the reactants is less than the total mass of the products.Matter is not changed.
- 19. Multiple ChoiceIdentify the reactant(s) and product(s) of the reaction.All three are reactants and none are products.Hydrogen and water are the reactants, and oxygen is the product.Water and oxygen are the reactants, and hydrogen is the product.Hydrogen and oxygen are the reactants, and water is the product.
- 20. Multiple ChoiceA molecule is smaller than an atom.TrueFalse
- 21. Multiple ChoiceHow many Oxygen (O) atoms are in 2C2HO8Cl221685
- 22. Multiple ChoiceHow many Hydrogen (H) atoms are in NH3O53451
- 23. Multiple ChoiceA molecule is________a glob of gelatinous goosmaller than an atomfilled with raisonsmore than one atom bonded together
- 24. Multiple ChoiceHow many molecules of Carbon are in the following formula? 3C2H6361218
- 25. Multiple ChoiceHow many elements are in C6H12O6?1234
- 26. Multiple Choice
What is the state symbol for a solid?
(s)
(l)
(g)
(aq)
- 27. Multiple Choice
What is the state symbol for a gas?
(s)
(l)
(g)
(aq)
- 28. Multiple Choice
What is the state symbol for a liquid?
(s)
(l)
(g)
(aq)
- 29. Multiple Choice
What is the state symbol for an aqueous solution?
(s)
(l)
(g)
(aq)
- Answer choicesTagsAnswer choicesTags