« previous next »

Author Question: A commonly used abrasive that is NOT used in toothpaste is A) sugar. B) calcium carbonate. C) ... (Read 25 times)

tth

  • Hero Member
  • *****
  • Posts: 579
on: Aug 27, 2018
A commonly used abrasive that is NOT used in toothpaste is
 
  A) sugar.
  B) calcium carbonate.
  C) calcium hydrogen phosphate.
  D) calcium pyrophosphate.

Question 2

A gasoline with an octane rating of 90 would give the same performance in a standard test engine as a mixture of
 
  A) 90 isooctane and 10 heptane.
  B) 90 heptane and 10 isooctane.
  C) 90 parts isooctane and 90 parts heptane.
  D) 90 parts isooctane and 90 parts water.


deja

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Sugar Cube-Sized Robotic Ants Mimic Real Foraging Behavior Sugar Cube-Sized Robotic Ants Mimic Real Foraging Behavior
CAM Plant Sugar Synthesis CAM Plant Sugar Synthesis
Commonly Used Anxiolytics: Drugs for Treatment of Generalized Anxiety Disorders Commonly Used Anxiolytics: Drugs for Treatment of Generalized Anxiety Disorders
The Glycemic Index of Commonly Eaten Foods The glycemic index of a variety of foods The Glycemic Index of Commonly Eaten Foods The glycemic index of a variety of foods
Growing Interest in Sugar-Free Foods and Beverages Growing Interest in Sugar-Free Foods and Beverages
Sugar Sugar
Video: Non-specific disease resistance mechanisms & Skin's defense barriers

For a complete list of videos, visit our video library