« previous next »

Author Question: How is the term atomic number defined for a given atom? A) as the mass of one mole of that ... (Read 62 times)

Caiter2013

  • Hero Member
  • *****
  • Posts: 607
on: Aug 27, 2018
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
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?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Center of Mass of a Binary Star System Center of Mass of a Binary Star System
The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha The recent mass upheavals in Tunisia, Egypt, Libya, Yemen, and Syria gave political scientists a cha
The mass media not only reflect gender stereotypes but they also play a role in changing them. ... The mass media not only reflect gender stereotypes but they also play a role in changing them. ...
Long-term Potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces ... Long-term Potentiation in the granule cell layer of the rat hippocampal dentate gyrus. (Traces ...
Mayan Number Mayan Number
Human Development (Full Term) Human Development (Full Term)
Video: Red Blood Cells - Erythropoietin (EPO)

For a complete list of videos, visit our video library