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- 1. Multiple Choice
What two types of atoms make a covalent bond?2 Nonmetals1 Nonmetal and 1 Metal2 Metals2 Noble Gases - 2. Multiple ChoiceIonic bonds are between...Metal and Non-metalNon-metal and Non-metalMetal and Metal
- 3. Multiple ChoiceWhich of the following is NOT an ionic compound:CaONaOHBaCl2Br2
- 4. Multiple Choice
Al2O3
ionic
covalent
- 5. Multiple Choice
A ______________ mixture is one that does not have a uniform composition.
heterogeneous
homogenous
pure substance
- 6. Multiple Choice
Dry ice is solid carbon dioxide, or CO2. Dry ice may be used as a cooling agent and contains two oxygen atoms bonded to a carbon atom. Dry ice is a ___________________ .
pure substance
mixture
- 7. Multiple Choice
Instant coffee is made by dissolving a powder in hot water. Instant coffee is a ___________________ .
pure substance
mixture
- 8. Multiple Choice
Blood is a fluid found in the bodies of humans and other animals. It can be physically separated into plasma, red blood cells and white blood cells. Blood is a ___________________
pure substance
mixture
- 9. Multiple ChoiceIs burning wood a chemical or physical change?chemicalphysical
- 10. Multiple ChoiceWhich is a physical change?burning matchvinegar in baking sodamelting buttercooking an egg
- 11. Multiple ChoiceIs milk going sour a physical or chemical change?PhysicalChemical
- 12. Multiple ChoiceWater freezingChemical ChangePhysical Change
- 13. Multiple Choice
Put the liquids in order from most dense to least dense?
4,3,2,1
1,2,3,4
3,4,2,1
4,3,1,2
- 14. Multiple Choice
What causes an object to sink in a water?
if the object's density is less than the water's density.
if the object's density is the same as water's density.
if the object's density is greater than water's density.
if the object's density is zero
- 15. Multiple Choice
Calculate the density of the cube.
2 g/cm3
4 g/cm3
6 g/cm3
8 g/cm3
- 16. Multiple ChoiceWhat is the density of a liquid that has a mass of 27g and a volume of 30ml?0.9 g/ml3 g/ml57 g/ml810 g/ml
- 17. Multiple Choice
What is the mass of a piece of stainless steal with a density 3.0g/cm3 and a volume of 83.3 cm3
250 g
175 g
301 cm3
- 18. Multiple ChoiceAn oreo cookie weighs 20 grams. It gets crushed into crumbs for a recipe. How much do its crumbs weigh?15 grams25 grams20 grams
- 19. Multiple Choice
Why are unbalanced chemical equations wrong?
Because they make compounds.
Because they don't have reactants and products.
Because they have the same number of atoms on both sides of the equation.
Because they violate the law of conservation of mass.
- 20. Multiple ChoiceThe coefficient in 3H2O is6235
- 21. Multiple ChoiceHow many nitrogen atoms does NH3 have?1234
- 22. Multiple Choice
Which Chemical Equation is Balanced?
Fe4+O2------4FeO2+O2
2H2+O2-----2H2O
3Cr+4O₂-----2Cr₂O₃
- 23. Multiple Choice
Which Chemical Equation is Balanced?
4O2 + 2H2 + S2------ 2H2SO4
4H2+O2-----2H2O2
3Cr+4O₂-----2Cr₂O₃
- 24. Multiple Choice6 CO2 + 6 H2O → C6H12O6 + 6 O2BalancedNot Balanced
- 25. Multiple Choice2 AgI + Na2S → Ag2S + 2 NaIBalancedNot Balanced
- 26. Multiple Choice
PCl5 + 2H2O → H3PO4 + HCl
Balanced
Not Balanced
- 27. Multiple ChoiceThis diagram represents a _____.pure substance that is a compoundmixture of elementspure substance that is an elementmixture of compounds
- 28. Multiple ChoiceThis picture represents which of the following?ElementCompoundMixture
- 29. Multiple Choice
What type of bonding does this picture show?
Ionic
Covalent
- 30. Multiple Choice
What type of bonding does this picture show?
Ionic
Covalent
- Answer choicesTagsAnswer choicesTags