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
Darina [25.2K]
3 years ago
13

The digestive system is the body system that Text to speech A:A. breaks down food into substances that can be absorbed and used

for energy. B:B. gets rid of the remaining solid waste that cannot be absorbed. C:C. forms a long tube from the mouth to the rectum. D:D. all of the above
Chemistry
2 answers:
Goshia [24]3 years ago
4 0

Answer:

d is the answer

Explanation:

jekas [21]3 years ago
4 0

Answer:

D

Explanation:

The Digestive system is a system in the body thath breaks down food to get energy, gets rid of waste, and is also forms a long "tube" that goes from your mouth to your rectum

You might be interested in
What is responsible for moving the water to the ground?
Mandarinka [93]

Answer:

Water applied to the surface of a relatively dry soil infiltrates quickly due to the affinity of the soil particles for water. As time passes and the soil becomes wet, the force of gravity becomes the dominant force causing water to move.

Explanation:

6 0
3 years ago
Read 2 more answers
Copper metal (Cu) reacts with silver nitrate (AgNO3) in aqueous solution to form Ag and Cu(NO3)2. The balanced chemical equation
Rufina [12.5K]

The mass formed in a chemical reaction is given by stoichiometry law in balanced chemical equation. The mass of silver produced in the reaction is 107. 9 g.

<h3>What is the stoichiometric law?</h3>

The stoichiometric law states that in a balanced chemical equation, the stoichiometric coefficient describes the moles of each compound in a chemical reaction.

The balanced chemical equation for the reaction is:

\rm Cu\;+\;2\;AgNO_3\;\rightarrow\;Cu(NO_3)_2\;+\;2\;Ag

From the balanced chemical equation, 1 moles of copper results in 2 moles of silver.

Moles in terms of mass can be given as:

\rm Moles=\dfrac{Mass}{Molar\;mass}

Thus, moles of 31. 75 grams copper is:

\rm Cu=\dfrac{ 31. 75 }{63.5}\;mol\\ Cu=0.5 mol

The moles of Ag produced can be given from stoichiometric law as:

\rm 1\;mol\;Cu=2\;mol\;Ag\\0.5 \;mol\;Cu=0.5\;\times\;2\;mol\;Ag\\0.5\;mol\;Cu=1\;mol\;Ag

The moles of Ag produced is 1 mol.

The mass of a mole of element is equivalent to the molar mass. Thus, the mass of Ag produced in the reaction is 107. 9 g. Hence, option B is correct.

Learn more about stoichiometric law, here:

brainly.com/question/6907332

7 0
2 years ago
Silver has two naturally isotopes and has an atomic mass of 107.868 amu. One isotope is Ag-109 isotope (108.905 amu) and has a n
Triss [41]

Answer:  106.905

Explanation:  If there are only 2 isotopes, and 1 of them is 48.16%, the second must, by default, be (100 - 48.16%) = 51.84%  The final, averaged, atomic mass is 107.868.  This is made up of each isotope's atomic mass times the percentage of that isotope in the total sample.  The weighted value of the known isotope (109) plus that of the unknown must come to the observed value of 107.868 amu.  (107.868 - 52.45 = 55.42).  Divide that by the % for that isotope (55.42/0.5184) = 106.90 amu for the second isotope.

<u>Atomic Mass</u>  <u>% of Sample</u> <u>Weighted Value</u>

    108.905         48.16%              52.45

          X               51.84%              <u>55.42</u>

                                                     107.87

      X = (55.42/0.5184) = 106.90 amu

5 0
3 years ago
Maya made this picture to represent a chemical reaction:
Minchanka [31]

Answer:

It is neither a synthesis reaction nor a decomposition reaction because two reactants form two products.

Explanation:

This reaction would be considered a single replacement reaction.

5 0
3 years ago
The statue of Liberty is made out of copper metal. When it was first constructed, the color of the copper metal was bright burnt
goldenfox [79]
When the Statue was unveiled in 1886, it was a shiny brown color, like a penny. By 1906, the color had changed to green. The reason the Statue of Liberty changed colors is that the outer surface is covered with hundreds of thin copper sheets. Copper reacts with the air to form a patina or verdigris.

Hope this helps and good luckkk :)
5 0
2 years ago
Read 2 more answers
Other questions:
  • Which kind of atoms would typically form an ionic bond?
    13·2 answers
  • A prototype is usually different from the final product
    12·1 answer
  • What is the layer of Earth's atmosphere that has the coldest temperature range?
    11·1 answer
  • Which of these performs the same function as the gasoline in a car
    15·2 answers
  • An object accelerates 7.2 m/s2 when a force of 4.0 newtons is applied to it. What is the mass of the object?
    12·1 answer
  • Consider this reaction: 2al(s) + 3 cucl2(aq) → 2alcl3(aq) + 3 cu(s) if the concentration of cucl2 drops from 1.000 m to 0.655 m
    15·1 answer
  • The temperature of a sample of gas in a steel tank at 0.30 ATM at 25 Celsius if the pressure W20.59 ATM what would be the final
    9·1 answer
  • When calcium chloride and baking side is mixed, is it an example of chemical or physical change?
    8·1 answer
  • A deer is running across a meadow at a speed of 15 m/s. Katie is riding in a car that is traveling at 25 m/s in the opposite dir
    6·1 answer
  • What is the skeleton equation of 2Na + Cl2 → 2NaCl.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!