# Scientific Notation And And Significant Figures Question Preview (ID: 34956)

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Chapter 1 Stuff.

**When converted to standard notation the number 6.75E10 is**

a) 0.0000000000675

b) 67500000000

c) 6750000000

d) 0.0000000675

**0.125 - 0.00033 =**

a) 0.12467

b) 0.1247

c) 0.125

d) 0.13

**How many significant figures are there in the number 0.02040?**

a) 3

b) 4

c) 5

d) 6

**(17.5 + 90.2) x 2.243 =**

a) 241.5711

b) 242

c) 241.6

d) 240.

**The result of 1.233 + 2.27 is**

a) 3.503

b) 3.50

c) 3.5

d) 4

**The result of 82.0/17 is**

a) 4.823529412

b) 4.82

c) 4.8

d) 5.0

**13.023 x 123.1 =____. The result of this calculation will have how many significant figures?**

a) 3

b) 4

c) 9

d) It depends on what the unit is

**When rounded to three significant digits, the number 0.01342 becomes**

a) 0.01

b) 0.013

c) 0.0134

d) 134

**How many significant digits are in the measurement 0.00340**

a) 2

b) 3

c) 4

d) 5

**Which is not an SI base unit**

a) second

b) Kelvin

c) meter

d) degree Celcius

**Which unit do we use in chemistry for volume?**

a) oz

b) gal

c) cup

d) L

**Which of the following numbers represnts proper scientific notation as displayed by your calculator??**

a) 34E21

b) 3.4^21

c) 3.4E21

d) 3400000000000000000000

**Which of the following is correct about a number obtained by measuremetnt?**

a) It must have a unit and at least one estimated digit.

b) It must be exact.

c) It must have one and only one estimated digit.

d) All of the uncertain digits written must be recorded.

**Which is the largest?**

a) 18 km

b) 18 m

c) 18 cm

d) 18 mm

**2.8 E11 x 1.5 E-5 =**

a) 4.2 E16

b) 4200000

c) 42000000000000000

d) 1.9 E16

**In the measurement 234.5, the estimated digit is**

a) 2

b) 3

c) 4

d) 5

**8.8E24 -8.9E25=**

a) 0

b) 7.9E24

c) -0.1

d) -1E24

**Which of the following is an SI base unit?**

a) foot

b) Kilogram

c) minute

d) Degree Celcius

**To convert 0.0000567 to scientific notation the power of ten will be**

a) 5

b) -5

c) 1

d) -1

**Which number has 3 significant figures?**

a) 110

b) 0.025

c) 30.2

d) 700

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