Mouthwash is a good example of

a. a compound.
b. a heterogeneous mixture.
c. a homogeneous mixture.
d. an element.


c

Physics & Space Science

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When a nucleus emits a beta particle, its atomic number

A) increases by 1. B) decreases by 1. C) increases by 2. D) decreases by 2. E) none of the above

Physics & Space Science

The Tonga Trench in the Pacific Ocean is 36,000 feet deep. Assuming that sea water has an average density of 1.04 g/cm3, calculate the absolute (total) pressure at the bottom of the trench in atmospheres

(1.00 in = 2.54 cm, 1.00 atm = 1.01 × 105 Pa) A) 1.1 × 103 atm B) 1.1 × 108 atm C) 1.1 × 105 atm D) 1.1 × 106 atm E) 2.1 atm

Physics & Space Science

A particle (m = 50 g, q = 5.0 ?C) is released from rest when it is 50 cm from a second particle (Q = ?20 ?C). Determine the magnitude of the initial acceleration of the 50-g particle

a. 54 m/s2 b. 90 m/s2 c. 72 m/s2 d. 65 m/s2 e. 36 m/s2

Physics & Space Science

VOCs can cause cancer, even if present in small amounts

What will be an ideal response?

Physics & Space Science