DIRECTIONS: FILL THE BLANKS WITH THE CORRECT ANSWER. The critical age under which sunscreens should not be used on babies is: ___The critical wavelength used in the broad-spectrum test of sunscreens is: ___Sunscreens that are broad-spectrum and have an SPF value of at least ___ can claim that they can prevent aging and skin cancer.A sunscreen claimed to be “very water resistant” still provides protection after____ minutes of water immersion. A particle is usually called nanoparticle if its size is smaller than ___ nm.

Fill the blank with the correct answers are given below.

Answered: DIRECTIONS: FILL THE BLANKS WITH THE…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter11: Modern Atomic Theory

Section: Chapter Questions

Problem 20QAP: When a tube containing hydrogen atoms is energized by passing several thousand volts of electricity...

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DIRECTIONS: FILL THE BLANKS WITH THE CORRECT ANSWER.

The critical age under which sunscreens should not be used on babies is: ___
The critical wavelength used in the broad-spectrum test of sunscreens is: ___
Sunscreens that are broad-spectrum and have an SPF value of at least ___ can claim that they can prevent aging and skin cancer.
A sunscreen claimed to be “very water resistant” still provides protection after____ minutes of water immersion.
A particle is usually called nanoparticle if its size is smaller than ___ nm.

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