1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
konstantin123 [22]
3 years ago
8

The reactants involved in a chemical reaction are shown. How many O atoms must be present in the product thy forms from this rea

ction?
A.1
B.2
C.3
D.4

Biology
1 answer:
ira [324]3 years ago
8 0

Answer: 2

Explanation: The balanced equation would be: Na2O + H2O -> 2NaOH, meaning that the product (sodium hydroxide) has 2 moles of oxygen atoms.

You might be interested in
El fenómeno que implica el movimiento de partículas a través de la membrana en contra de su gradiente de concentración, es decir
bazaltina [42]

ami tellement désolé tellement je ne connais pas cette langue mais salut mon ami

4 0
3 years ago
The vaccine for chickenpox is: select one:
Alexxandr [17]
C. alive. The vaccine contains a live strain of varicella-zoster (chicken pox) virus which has been attenuated so that it will stimulates the immune system but does not cause any disease in healthy people.
5 0
3 years ago
Scientific evidence documents the pattern of evolution. The evidence exists in a variety of categories, including direct observa
anzhelika [568]

Answer:

Direct observation of evolutionary change: creation of drug-resistant bacteria.

Fossil record: discovery of transitional forms of animals, discovery of shells of extinct organisms

Homology: similarities in mammalian forelimbs, identical genetic code in fireflies and tobacco plants, vestigial pelvis in right whales

Biogeography: resemblance of endangered island species to neighboring mainland species,

3 0
3 years ago
Carbon is most abundant in the<br>Carbon is most abundant in the<br>and<br>and​
mihalych1998 [28]

Carbon is most abundant in the <u>atmosphere</u> and <u>hydrosphere</u>.  

Explanation:

In the atmosphere, carbon is mostly present in the gaseous state of carbon dioxide. Plants absorb atmospheric carbon through photosynthesis and prepare food which is used by other living organisms. Respiration by plants and animals returns carbon back to atmosphere.

Next to atmosphere, carbon is abundant in the hydrosphere dissolved in water. Aquatic plants and marine organisms absorb carbon dissolved in water to prepare food. This carbon is also used to produce shells and other marine structures.

Carbon is also present in lithosphere and biosphere.

5 0
3 years ago
Read 2 more answers
Which of the following is NOT one of the factors that play a role in population growth rate?
GenaCL600 [577]
What are the answer choices to choose from so i can answer
3 0
3 years ago
Other questions:
  • Some rihnoceros populations are now decreasing again. Which of the following is most likely cause of these decreases
    15·1 answer
  • A father has dimples, the mother does not have dimples, and all four of their children have dimples. Dimples (D) are dominant ov
    15·1 answer
  • Is the structure of dna related to its function
    15·1 answer
  • what relationship was used to form the analogy "blood vessels are to circulatory as hair is to integumentary"?
    12·1 answer
  • Bird guides once listed the myrtle warbler and Audubon's warbler as distinct species Recently, these birds have been reclassifie
    14·1 answer
  • Easy points
    12·1 answer
  • Which term describes a dna molecule?
    15·1 answer
  • You have learned that scientists have found physical evidence of the Flood. In this project you will think about Noah and his co
    6·1 answer
  • 1
    9·1 answer
  • List the 4 consumer types and what they mean.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!