Question 7 of 32
1 Point
What is the purpose of environmental regulations on chemicals?
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Chemistry, 14.07.2020 01:01 dontworry48
Question 7 of 32
1 Point
What is the purpose of environmental regulations on chemicals?
A. To prevent all chemicals from entering the environment
B. To make the production of chemicals more costly
O C. To only allow the use of chemicals that help the environment
O D. To protect the environment from harmful chemicals
Answers: 3
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In which situation can a mixture always be called a solution
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Balance and in which category does it fit in? single or double displacement or synthesis or decomposition? (a) k2 o → k + o2 (b) na + i2 → nai (c) cu(no3 )2 + naoh → cu(oh)2 + nano3 (d) kclo3 → kcl + o2 (e) ca(no3 )2 + hbr → cabr2 + hno3 (f) sn(oh)2 → sno + h2 o (g) p4 + n2 o → p4 o6 + n2 (h) fe + al2 (so4 )3 → feso4 + al (i) alcl3 + na2 co3 → al2 (co3 )3 + nacl (j) c3 h6 + o2 → co2 + h2 o
Answers: 1
Chemistry, 22.06.2019 11:00
As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
Answers: 3
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