This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A class of pollutants formed at high temperatures (nearly complete combustion) in the presence of ... (Read 113 times)

Garrulous

  • Hero Member
  • *****
  • Posts: 686
on: Jul 28, 2018
A class of pollutants formed at high temperatures (nearly complete combustion) in the presence of air is ______________.
 Fill in the blank(s) with correct word

Question 2

About 75 of the mass of the visible universe is composed of which element?
 a. Helium
  b. Iron
  c. Hydrogen
  d. Silicon


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

yifu223

  • Sr. Member
  • ****
  • Posts: 302
Reply #1 on: Jul 28, 2018
Answer to Question 1

nitrogen oxides

Answer to Question 2

c


Garrulous

  • Member
  • Posts: 686
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

nathang24

  • Member
  • Posts: 314
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Where mangrove diversity is high, mangrove species show clear patterns of vertical zonation relative Where mangrove diversity is high, mangrove species show clear patterns of vertical zonation relative
Humanmade pollutants may be driving the expansion of the Earth’s tropical belt seen Humanmade pollutants may be driving the expansion of the Earth’s tropical belt seen
Moderate to high physical activity in PE classes is one component of a successful prevention effort ... Moderate to high physical activity in PE classes is one component of a successful prevention effort ...
Permafrost: High albedo, reflects as much as 90% of the Sun’s energy Permafrost: High albedo, reflects as much as 90% of the Sun’s energy
Calculate the pH of a solution formed by mixing 120.0 mL of 0.30 M HClO with 1180.0 mL of 0.20 ... Calculate the pH of a solution formed by mixing 120.0 mL of 0.30 M HClO with 1180.0 mL of 0.20 ...
An 8th grade class develops a linear model that predicts the number of cheerios (a small round ... An 8th grade class develops a linear model that predicts the number of cheerios (a small round ...
Video: Interpreting a cladogram Animation

For a complete list of videos, visit our video library