Scientific Measurement Chemistry Chap 3 Practice

Change from standard form to scientific notation:  0.000398

• 39.8  x  10^-5
• 3.98  x  10^-5
• 3.98  x  10^-4
• 39.8  x  10^-6

How would you write 50,000 in scientific notation?

• 50 x 10⁵
• 5 x 10⁴
• 5 x 10³
• .5 x 10³

Which of the following is correct scientific notation?

• 20.35 x 10⁴
• .2035 x 10⁴
• 2035 ⁴
• 2.035 x10⁴

Try to change the number back to standard form:  6.79  x  10⁴

• 679,000
• 6,790
• 67,900
• 6,790,000

Try to change the number back to standard form: 3.97  x  10^-2

• 0.000397
• 0.0397
• 0.0000397
• 0.397

(2 x 10^-5)+ (7 x 10^-5)

• 9 x 10^-10
• 14 x 10^-5
• 9 x 10^-5
• 1.4 x 10^-4

(8 x 10⁴) - (2 x 10⁴)

• 16 x 10¹⁶
• 16 x 10⁸
• 6 x 10⁸
• 6 x 10⁴

Add withing scientific notation 
(5.2 x 10⁷) + (3.01 x 10⁴)

• 5.20301 x 10¹¹
• .520301 x 10⁷
• 5.20301 x 10⁷
• 5.20301 x 10⁸

What do you do to your exponents when you are multiplying in scientific notation?

• Subtract

• Multiply

• Divide

• Add

What do you do to your exponents when you are dividing in scientific notation?

• Subtract

• Divide

• Multiply

• Add