Free Printable 269

1.

Which of the following is correct scientific notation?

a)

20.35 x 10⁴

b)

.2035 x 10⁴

c)

2035⁴

d)

2.035 x10⁴

2.

What conversion factor would you use to solve this problem?

a)

2.20 lbs / 1 kg

b)

1 kg / 2.20 lbs

c)

0.002 lbs / 1 g

d)

1 g / 0.002 lbs

3.

Which conversion factor would be needed?

a)

b)

c)

d)

4.

Which conversion factor would be needed?

a)

A) 1 meter = 100 centimeters

b)

B) 1 kilometer = 1000 meters

c)

C) 1 inch = 2.54 centimeters

d)

D) 1 pound = 16 ounces

5.

Which conversion factor would be needed?

a)

b)

c)

d)

6.

Convert 2.5 grams into milligrams.

a)

25 mg

b)

25,000 mg

c)

250 mg

d)

2500 mg

7.

Americans drink 5,604,000 gallons of sweet tea each day. How many liters is that? (1 gal = 3.79 L)

a)

21,200,000 L

b)

21,239,160 L

c)

21,207,190.2 L

d)

21,000,000 L

8.

How many minutes are in a school year, 187 days?

a)

279,280 min.

b)

16, 200 min.

c)

16, 156 min.

d)

269,280 min.

9.

What unit should be in the denominator of the conversion factor?

a)

yards

b)

leagues

c)

feet

d)

fathoms

10.

Which unit of measurement is greatest?

a)

decimeters

b)

millimeters

c)

centimeters

d)

kilometers

11.

convert 650 m to km

a)

6.5

b)

0.65

c)

65

d)

0.065

12.

648 g = ____ mg

a)

6,480

b)

64,800

c)

648,000

d)

64.8

13.

What is the atomic number of the element with the symbol 'Cu'?

a)

29

b)

26

c)

27

d)

28

14.

Which of the following elements has an atomic number of 269?

a)

Ununseptium (Uus)

b)

Ununtrium (Uut)

c)

Ununhexium (Uuh)

d)

Ununpentium (Uup)

15.

What is the correct scientific notation for the number 269,000?

a)

$2.69 \times 10^5$

b)

$26.9 \times 10^4$

c)

$0.269 \times 10^6$

d)

$269 \times 10^3$

16.

Which of the following is a correct representation of the chemical reaction involving 269 moles of a substance?

a)

$269A + B \rightarrow C$

b)

$A + 269B \rightarrow C$

c)

$A + B \rightarrow 269C$

d)

$A + B \rightarrow C + 269D$

17.

If a scientist measures a temperature of 269 K, what is this temperature in Celsius?

a)

-4°C

b)

-273°C

c)

-269°C

d)

-0.15°C

18.

A sample contains 269 grams of a substance. If the molar mass of the substance is 134.5 g/mol, how many moles are present?

a)

2 moles

b)

1 mole

c)

3 moles

d)

4 moles

19.

Which of the following is a possible isotope of an element with an atomic number of 269?

a)

$^{269}_{108}Hs$

b)

$^{269}_{110}Ds$

c)

$^{269}_{112}Cn$

d)

$^{269}_{114}Fl$

20.

In a physics experiment, a force of 269 N is applied to an object. If the object has a mass of 10 kg, what is the acceleration?

a)

26.9 m/s²

b)

2.69 m/s²

c)

0.269 m/s²

d)

269 m/s²

21.

A chemical reaction releases 269 kJ of energy. What is this energy in calories? (1 cal = 4.184 J)

a)

64,300 cal

b)

64,300,000 cal

c)

64,300,000,000 cal

d)

6,430 cal

22.

Which of the following is the correct electron configuration for an element with an atomic number of 269?

a)

$[Rn] 5f^{14} 6d^{10} 7s^2 7p^6$

b)

$[Rn] 5f^{14} 6d^{10} 7s^2 7p^5$

c)

$[Rn] 5f^{14} 6d^{10} 7s^2 7p^4$

d)

$[Rn] 5f^{14} 6d^{10} 7s^2 7p^3$

23.

A scientist observes a wavelength of 269 nm in a spectrum. What type of electromagnetic radiation is this?

a)

Ultraviolet

b)

Infrared

c)

Visible

d)

Microwave

24.

If a solution has a concentration of 269 ppm, what is this concentration in percentage?

a)

0.0269%

b)

2.69%

c)

26.9%

d)

0.00269%

25.

A car travels 269 km in 3 hours. What is its average speed?

a)

89.67 km/h

b)

90 km/h

c)

80 km/h

d)

100 km/h

269

Total questions: 25

Worksheet time: 25mins

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