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
tiny-mole [99]
3 years ago
6

The system responsible for getting oxygen into your blood is known as the __________ .

Chemistry
2 answers:
hodyreva [135]3 years ago
6 0
The answer is C. pulmonary system.
goldfiish [28.3K]3 years ago
6 0
The answer is A.circulatory system.
You might be interested in
Oxygen is produced by what part of photosynthesis? HURRY
nikklg [1K]

Answer:The oxygen during photosynthesis comes from split water molecules. During photosynthesis, the plant absorbs water and carbon dioxide. After the absorption, the water molecules are disassembled and converted into sugar and oxygen.

5 0
3 years ago
Read 2 more answers
Neap tides, relatively weak tides, occur when the Moon is in position(s)
andrew-mc [135]

Answer:

D) B and D.  Weak tides, called neap tides, are experienced in the Earth's oceans when the sun is in positions B or D. In this case, the sun and moon interfere with each other in producing tidal bulges on Earth.  It is definitely not the other answer since I got it right on USATESTPREP.

6 0
3 years ago
Read 2 more answers
A scientist prepared an aqueous solution of a 0.45 M weak acid. The pH of the solution was 2.72. What is the percentage ionizati
aleksandr82 [10.1K]

Answer:

0.42%

Explanation:

<em>∵ pH = - log[H⁺].</em>

2.72 = - log[H⁺]

∴ [H⁺] = 1.905 x 10⁻³.

<em>∵ [H⁺] = √Ka.C</em>

∴ [H⁺]² = Ka.C

∴ ka = [H⁺]²/C = (1.905 x 10⁻³)²/(0.45) = 8.068 x 10⁻⁶.

<em>∵ Ka = α²C.</em>

Where, α is the degree of dissociation.

<em>∴ α = √(Ka/C) </em>= √(8.065 x 10⁻⁶/0.45) = <em>4.234 x 10⁻³.</em>

<em>∴ percentage ionization of the acid = α x 100</em> = (4.233 x 10⁻³)(100) = <em>0.4233% ≅ 0.42%.</em>

4 0
3 years ago
Read 2 more answers
Gravity is best described as the attractive force___
Delvig [45]

Gravity is nest described as the attractive force that acts between any two objects on earth

Explanation:-

  • Gravity was found by Sir Eizak Newton
  • It has formula given by

\\ \rm\Rrightarrow F=G\dfrac{Mm}{r^2}

8 0
3 years ago
Read 2 more answers
Compounds like CCl₂F₂ are known as chlorofluorocarbons, or CFCs. These compounds were once widely used as refrigerants but are n
natta225 [31]

Answer: Mass Of CFC that needs to evaporate for the freezing of water = 328.24 g

Explanation: Heat gained by the CFC = Heat lost by water

Heat lost by water = Heat required to take water's temperature to 0°c + Heat required to freeze water at 0°c

Heat required to take water's temperature from 33°c to 0°c = mCΔT

m = 201g, C = 4.18 J/(gK), ΔT = 33

mCΔT = 201 × 4.18 × 33 = 27725.94 J

Heat required to freeze water at 0°c = mL

m = 201g, L = 334 J/g

mL = 201 × 334 = 67134 J

Heat gained by CFC to vaporize = mH = 27725.94 + 67134 = 94859.94 J

H = 289 J/g, m = ?

m × 289 = 94859.9

m = 328.24 g

QED!!

7 0
3 years ago
Other questions:
  • Find density of nitrogen dioxide at 75*C and 0.805 atm.
    7·1 answer
  • If a transverse wave travels 10 meters in 5 seconds,what is its speed?
    10·1 answer
  • Consider the reaction.
    14·1 answer
  • Identify a process that is NOT reversible. A. melting of steel B. freezing water C. melting of ice D. frying an egg E. depositio
    13·1 answer
  • The pH of a 0.05 M solution of acetic acid is 3. What is the value of the equilibrium constant for the dissociation of acetic ac
    15·1 answer
  • Determine the molarity and mole fraction of a 1.15 m solution of acetone (CH3COCH3) dissolved in ethanol (C2H5OH). (Density of a
    12·1 answer
  • What would happen if the earth did not have gravity?
    13·2 answers
  • In discharge tube gases are good conductors of electricity at very low pressure and high
    13·1 answer
  • Someone pls help me ::/:/
    12·1 answer
  • Which statement best describes how the scientific community analyzes data?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!