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
Vikentia [17]
3 years ago
12

A student put the powder to the corom board . Sciencetific reason for adding powder is ,

Biology
1 answer:
kondaur [170]3 years ago
8 0

Answer:

B or D

Explanation:

think of it how you use chalk on a chalk board, its less friction using chalk instead lets say a marker on a white board.

You might be interested in
2. The graph represents changes to two jackrabbit populations in two different areas over 15 years.
wel
Area a because it experienced a growth from 0 to 15 in 5 years while area b experienced a growth of growth 10
8 0
3 years ago
Explain the effects of osmosis on cells and tissues:
viva [34]

Answer:

In explanation.

Explanation:

Effect of osmosis on cells:

-Osmosis is the movement of water across a cell membrane. Cells use osmosis to maintain concentration equilibrium (the concentrations of solute inside and outside the cell are equal). Changing the amount of water allows the cells to achieve equilibrium.

Effects of osmosis on tissues:

-Red blood cells placed in a solution with a higher water concentration compared to their contents (eg pure water) will gain water by osmosis, swell up, and burst. Water will diffuse from a higher water concentration outside the cell to a lower water concentration inside the cell.

Hope this helps.

6 0
3 years ago
Fe + 02 - Fe2O3 what is the correct balance
laiz [17]

<em>Please</em><em> </em><em>see</em><em> the</em><em> attached</em><em> picture</em><em> for</em><em> full</em><em> </em><em>solution</em>

<em>Hope</em><em> </em><em>it</em><em> helps</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em>

5 0
3 years ago
HELP PLEASE !!!!!!!!
Virty [35]

Answer:

The answer to your question is below

Explanation:

Balance the following equation

                          1  N₂    +   3 F₂     ⇒   2 NF₃

                                   2  -   N    -   2

                                   6  -   F    -   6

5 0
3 years ago
Down
tigry1 [53]

Answer:

why is this even here?

Explanation:

5 0
3 years ago
Other questions:
  • The effects of amphetamines are similar to the effects of cocaine, but are ____
    10·1 answer
  • During assessment, a patient states, "i don't know why god is punishing me like this." which nursing diagnosis would the nurse m
    15·1 answer
  • How does Earth's gravity drive the cycling of water through Earth's systems?
    12·1 answer
  • When cells perform cellular respiration, they produce a molecule known as ATP (adenosine triphosphate). How does the cell use AT
    6·2 answers
  • Which of the following statements is CORRECT regarding studies of character
    10·1 answer
  • Which of the following events takes place in the electron transport chain?A) the breakdown of glucose into two pyruvate molecule
    14·1 answer
  • Which technologies help protect the environment? Check all that apply.
    10·1 answer
  • What is the exact location of an earthquake on earth's surface?
    9·2 answers
  • Define what it means to be a hybrid plant
    13·2 answers
  • 15.) Mutated<br> will make mutated<br> ! which will make the wrong
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!