« previous next »

Author Question: The EPA drinking water standard for toluene is 1 mg/L. What is this concentration in ppb? A) ... (Read 64 times)

shofmannx20

  • Hero Member
  • *****
  • Posts: 562
on: Aug 27, 2018
The EPA drinking water standard for toluene is 1 mg/L. What is this concentration in ppb?
 
  A) 0.001
  B) 0.1
  C) 1
  D) 1000

Question 2

High-density polyethylene is composed of
 
  A) primarily linear, unbranched chains of polyethylene in a close packing arrangement.
  B) primarily highly branched, non-linear chains of polyethylene in a diffuse packing arrangement.
  C) a mixture of polyethylene and polystyrene.
  D) polyethylene with high density plasticizers added to increase density.


ms_sulzle

  • Sr. Member
  • ****
  • Posts: 320
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Participation of water in biological reactions Participation of water in biological reactions
Reaction limited by substrate concentration Reaction limited by substrate concentration
Osmosis: Water moves from an area of low solute concentration to an area of higher solute ... Osmosis: Water moves from an area of low solute concentration to an area of higher solute ...
How to quickly determine the maximum or minimum value of a quadratic equation in standard form How to quickly determine the maximum or minimum value of a quadratic equation in standard form
Water is vital for many body functions, but it isn’t stored in the body Water is vital for many body functions, but it isn’t stored in the body
According to Table 17.1, which will reduce water but not Mg2+? According to Table 17.1, which will reduce water but not Mg2+?
Video: Dietary Cholesterol & LDL

For a complete list of videos, visit our video library