Author Question: How is the term atomic number defined for a given atom? A) as the mass of one mole of that ... (Read 66 times)

Caiter2013

  • Hero Member
  • *****
  • Posts: 607
How is the term atomic number defined for a given atom?
 
  A) as the mass of one mole of that element or isotope
  B) as the sum of the number of protons, neutrons, and electrons
  C) as the sum of the number of protons and neutrons in the nucleus
  D) as the number of protons in the nucleus

Question 2

Which of the following describes reverse osmosis?
 
  A) High pressure saltwater is forced against a semipermeable membrane and fresh water comes out.
  B) Saltwater is chemically reacted with aluminum particles, which chemically binds to the chloride ions.
  C) The water is heated until it evaporates and condenses in a pure form.
  D) High pressure saltwater is reacted with aluminum, which absorbs the sodium ions in an oxidation reaction.
  E) none of the above



Anonymous

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

D

Answer to Question 2

A



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

For a complete list of videos, visit our video library