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0.0670 grams

3

0.430 mg

3

0.476 kg

3

3.60 x10^-4 meters

3

309 cm

3

5.030 g/ml

3

60.0 min

3

Convert 0.0000354 to scientific notation

3.54x10^-5

2365 meters

4

Convert 5.4073X10^3 in standard form showing only 4 significant figures

5.407x20^6

Write 5600.4 Ms without SI prefix

56004000

89.7808

6

Convert 0.00230 to scientific notation

2.30x10^-3

Convert 5.7X10^-5 to standard form showing 3 significant figures

0.0000570

10000000

1

Write 111223 g using SI Prefix

1.11223x10^5 g

Write 1202.5 L using SI prefix

1.2025 kL

Convert 20449.011 to scientific notation

2.0449021x10^4

Which of the following is the general term for a property of matter that is directly observable A) Physical property B) C) D)

A) Physical property

1 micrometer is equal to A) 0.00001 meter B) 1.000000 meter C) 0.000001 meter D) 1.00000 meter

A)0.00001 meter

(2.4 x10^-3)x (6.8 x10^-8) A)1.6 x10^-10 B)1.6 x10^-12 C)1.63 x 10^-11 D)16.32 x 10^-11

A)1.6x10^-10

Which of the following statement is incorrect A) Solid particles move freely B) Gases have neither definite shape nor volume C) liquid matter takes up the shape of its container D) gases are compressible

A)Solid particles move freely

A matter that has a definite or constant composition and distinct properties A)Pure substance B) Mixture

A)pure substance

Boron,Carbon and nitrogen are examples of an element. Which of the following best describes an element? A) Simplest form of matter B)Can be broken down into simpler substances C)Classified as homogeneous or heterogeneous D)Composed of solute and solvent

A)simplest form of matter

For liquid Substance with different boiling points,which separation technique would be best used? A) filtration B) distillation C) chromatography D) evaporation

B) Distillation

Brittleness is an example of what physical property A)Extensive property B) Intensive property C) Both a and b D) none of the above

B) Intensive property

1.345 x 2.60 x 3.21 A)11 B)11.2 C)11.23 D)11.225

B)11.2

(1.31 x 10^2)+(2.42 x 10^3) A)3.73 x 10^3 B)2.55 x 10^3 C) 3.73 x 10^2 D)2.55 x 10^2

B)2.55x10^3

Which among the following is an example of a pure substance? A)Air B)Water C)Blood D)Alcohol

B)Water

Which of the following is both a pure substance and a compound? A)Gold B)Water C) Yogurt D) Cement

B)Water

In expressing numbers from standard notation to scientific notation,the exponent is a positive integer if A)The decimal is moved to the right B)The decimal is moved to the left C)The decimal retains its position D)None of the above

B)the decimal is moved to the left

All of the following are chemical properties, except____ A) Toxicity B) Corrosiveness C) Solubility D) Flammability

C) Solubility

What should be considered when adding or subtracting numbers expressed in scientific notation A)number of significant figures B) exponents to be added C) exponents which needs to be the same D)decimal numbers

C) exponents which needs to be the same

3.21 x 10^-5 pounds to milligram (use 1 pound=0.45 kg.) A)7.13 mg B)1.44 x 10-6 mg C)14.4 mg D)144,000 mg

C)14.4 mg

Which of the following is an example of homogenous mixture A)Water B)Salt C)Carbonated Drinks D)Salad

C)Carbonated drinks

In multiplication and division,the final answer must be patterned with: A)least number of decimal places B)least number of zeros C)least number of significant figures D)number with highest value

C)Least number of SIGNIFICANT FIGURES

The following are examples of chemical change except: A)Corroding nail B) Combustion of gasoline C)Boiling water D) Hydrogen burning in air

C)boiling of water

Soft drinks:Solution;_________: Compound A)Vinegar B)Soy sauce C)Wine D) Ethanol

D) Ethanol

2.70 yards to centimeter A)27.4 cm B)1.71 cm C)38.3 cm D)247 cm

D)247 cm

Which of the following shows an example of chemical change? A)Boiling of water B)Melting of butter C)Freezing of ice D)Baking of cake

D)Baking of cake

Which property could not be used to distinguish between table salt and table sugar A)Melting Point B)Boiling point C)Density D)Color

D)COLOR

Chemical Property

DEPENDENT in the AMOUNT of matter present.

Liquid

Is a state of matter that has no definite shape but has definite volume.

Decantation

Is used to separate two liquids like OIL AND WATER

Tarnishing of silverware physical change or chemical change

chemical change

combustion of diesel physical change or chemical change

chemical change

Acidity physical property or chemical property

chemical property

Reactiviy Physical property or chemical Property

chemical property

Melting of butter physical change or chemical change

physical change

dissolving cofee in hot water physical change or chemical change

physical change

pulverizing mothballs physical change or chemical change

physical change

Freezing point Physical property or chemical property

physical property

Height Physical property or chemical property

physical property

volume physical property or chemical property

physical property