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
Nataliya [291]
3 years ago
15

Please help! Multiple choice question!

Chemistry
2 answers:
Mamont248 [21]3 years ago
6 0
According to my mind and my biology test, it is B) Low concentration of oxygen IN THE BLOOD; high concentration co2 in the tissue
konstantin123 [22]3 years ago
3 0

Answer:

A. High concentration of oxygen in the blood; high concentration of carbon dioxide in the body tissues

Explanation:

Diffusion occurs from a region of higher concentration to a region of lower concentration. Diffusion occurs against a concentration gradient.

High concentration of oxygen in the blood causes oxygen to leave the blood and enter body tissues.  High concentration of carbon dioxide  in the body tissues causes carbon dioxide to leave body tissues and enter the blood.

You might be interested in
If a sample containing 2.00 mL of nitroglycerin (density=1.592g/mL) is detonated, how many total moles of gas are produced?
fgiga [73]

The overall balanced chemical reaction for this is:

Detonation of Nirtoglycerin <span>
4 C3H5N3O9 --> 12 CO2 + 6 N2 + O2 + 10 H2O </span>

 

Therefore:

2.00 mL x 1.592 g/mL = 3.184 g <span>
3.184 g / 227.1 /mol = 0.0140 mol nitroglycerin 
4 moles --> 12 + 6 + 1 + 10 = 29 moles of gas 
<span>0.0140 mol x (29/4) = 0.1017 moles of gases or (0.102 mol) </span></span>

6 0
3 years ago
A molecule composed of atoms is called _________.
Readme [11.4K]
I believe that the answer is element
3 0
3 years ago
Read 2 more answers
what is the balanced equation for the reaction of solid magnesium metal with oxygen gas to produce solid magnesium oxide
GaryK [48]

Answer:

2Mg + O₂ ⟶ 2MgO

Explanation:

Step 1. Start with the most complicated-looking formula (O₂?).

Put a 1 in front of it.

Mg + 1O₂ ⟶ MgO

Step 2. Balance O.

We have fixed 2 O on the left. We need 2O on the right. Put a 2 in front of MgO.

Mg + 1O₂ ⟶ 2MgO

Step 3. Balance Mg.

We have fixed 2 Mg on the right-hand side. We need 2 Mg atoms on the left. Put a 2 in front of Mg.

2Mg + 1O₂ ⟶ 2MgO

Every formula now has a coefficient. The equation should be balanced. Let’s check.

<u>Atom</u>  <u>On the left</u>  <u>On the righ</u>t

  Mg             2                  2

  O                2                  2

All atoms are balanced.

The balanced equation is

2Mg + O₂ ⟶ 2MgO

4 0
3 years ago
What term represents a compound
alukav5142 [94]
Compound can be described using element symbol and numbers .  it is a mixture which is result of two or more chemical element in such a way that atoms of different elements held together  by chemical compound that are difficult to break . Most often a compound looks and behave like an element 
 for example :-   Hydrogen   and oxygen ..   both of these elements are gaseous at room temperature and atmospheric pressure , but when both combined they both form compound water . ( H2O )
6 0
3 years ago
What two general products do combustion reactions create? *
Dimas [21]
It would be carbon dioxide and water.

hope this helps you
7 0
3 years ago
Other questions:
  • Atoms like sodium and lithium often lose electrons, which makes them
    9·2 answers
  • PLEASE HELP I GIVE BRAINLIEST
    14·1 answer
  • A balanced chemical reaction obeys the law of...
    6·2 answers
  • If you combined neon, argon and helium together, what would you expect to happen?
    11·1 answer
  • Which of the following models best describes the arrangement of valence electrons in metals?
    8·1 answer
  • Radio waves are primarily used to
    6·1 answer
  • When naming organic compounds, there are strict rules regarding punctuation?
    13·1 answer
  • Why is sorting important when recycling
    10·2 answers
  • What is S for silicon tetrachloride, SiCl4
    8·1 answer
  • 1. How much taller is the average person today than the average person 100 years ago?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!