« previous next »

Author Question: What elements do the symbols H, O, C, and N stand for? a. hydrogen, ozone, carbon, nitrogen b. ... (Read 45 times)

Mr3Hunna

  • Hero Member
  • *****
  • Posts: 536
on: Jul 28, 2018
What elements do the symbols H, O, C, and N stand for?
 a. hydrogen, ozone, carbon, nitrogen
  b. hydrogen, oxygen, chlorine, nitrogen
  c. hydrogen, oxygen, carbon, natrium
  d. hydrogen, oxygen, carbon, nitrogen
  e. none of the above

Question 2

In the chemical formula for water, H2O, what does the 2 mean?
 a. There are two oxygen (O) atoms in a molecule of water.
  b. There are two hydrogen (H) atoms in a molecule of water.
  c. The hydrogen in water is actually deuterium.
  d. none of the above


vish98

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

The biological process of nitrogen fixation The biological process of nitrogen fixation
Directionality of the hydrogen bond Directionality of the hydrogen bond
Ozone Depletion—A Global Issue Ozone Depletion—A Global Issue
Carbon Monoxide and Water Molecules Interaction Carbon Monoxide and Water Molecules Interaction
ELEMENTS OF ARCHITECTURE: Roman Architectural Orders ELEMENTS OF ARCHITECTURE: Roman Architectural Orders
Effects of Ac and Ds elements on gene expression Effects of Ac and Ds elements on gene expression
Video: Aneurysm

For a complete list of videos, visit our video library