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Airida [17]
3 years ago
9

What has caused air quality in United States to improve/get better since the 1950s?

Chemistry
2 answers:
weeeeeb [17]3 years ago
8 0

Answer:

better mileage on cars, took lead out of paint, smaller packaging like for delivery and store products, EPA laws updating

stealth61 [152]3 years ago
8 0

Answer:

Reducing pollution from transportation sources has led to healthier air for Americans. In cities, smog has been visibly reduced.

Explanation:

i hope this helped

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2KClO3 —> 2KCl2+ 3O2
garik1379 [7]

Answer:

False. The balanced equation should be

2KClO3-->2KCl + 3O2

it is a decomposition reaction.

3 0
2 years ago
If air is contaminated with unwanted substances, it is said to be polluted. Which of these places would most likely to have poll
lianna [129]

Answer:

Forest. Because as u saw last year with the Australian forest fire it was bad.

5 0
2 years ago
Which of the following is the correct nuclei definition for an ion with 26 protons, 30 neutrons, and 23 electrons
lyudmila [28]

Answer:

30

Explanation:

<em>bobo</em>

4 0
3 years ago
50 POINTS!!!! PLEASE HELP I AM BEGGING!!!!!!
polet [3.4K]
3CH4 refers to three molecules of a
compound and C3H12 refers to only one
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3CH4 and C3H12 are actually different
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7 0
2 years ago
There are 15 technicians and 11 chemists working in a research laboratory. In how many ways could they form a 5-member safety co
Fynjy0 [20]

a)

26C5 -> 26 choices of 5 things

b)

15C1 × 11C4

c)

11C1 × 15C4

d)

11C2 × 15C2

e)

11C4

or

15C4

5 0
3 years ago
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