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
serg [7]
3 years ago
8

Describe the physical and chemical changes that take place during digestion

Chemistry
1 answer:
DENIUS [597]3 years ago
3 0
Physical: food turns into our feces
Chemical: water turns into urine, food digest,
(honestly I think those are the answers)
You might be interested in
I typed a question. It said give points. I selected. Someone answered notification came. But where do I see they persons answer?
Ksivusya [100]

Answer:

212.304 grams

Explanation:

similar to your other question, use the same formula

q=mCpΔT

23617=m(4.182)(46.6-20)

23617=111.2412m

m=212.304g

6 0
2 years ago
an engineer wishes to design a container that will hold 12.0 mol of ethane at a pressure no greater than 5.00x10*2 kPa and a tem
OleMash [197]

Answer:

The minimum volume of the container is 0.0649 cubic meters, which is the same as 64.9 liters.

Explanation:

Assume that ethane behaves as an ideal gas under these conditions.

By the ideal gas law,

P\cdot V = n\cdot R\cdot T,

\displaystyle V = \frac{n\cdot R\cdot T}{P}.

where

  • P is the pressure of the gas,
  • V is the volume of the gas,
  • n is the number of moles of particles in this gas,
  • R is the ideal gas constant, and
  • T is the absolute temperature of the gas (in degrees Kelvins.)

The numerical value of R will be 8.314 if P, V, and T are in SI units. Convert these values to SI units:

  • P =\rm 5.00\times 10^{2}\;kPa = 5.00\times 10^{2}\times 10^{3}\; Pa = 5.00\times 10^{5}\; Pa;
  • V shall be in cubic meters, \rm m^{3};
  • T = \rm 52.0 \textdegree C = (52.0 + 273.15)\; K = 325.15\; K.

Apply the ideal gas law:

\displaystyle \begin{aligned}V &= \frac{n\cdot R\cdot T}{P}\\ &= \frac{12.0\times 8.314\times 325.15}{5.00\times 10^{5}}\\ &= \rm 0.0649\; m^{3} \\ &= \rm (0.0649\times 10^{3})\; L \\ &=\rm 64.9\; L\end{aligned}.

4 0
3 years ago
Use the following chemical equation to answer the question. 4K(s) + O2(g) → 2 K2O(s). If a staff member at a laboratory has 12.0
Allushta [10]

Answer:14.5 grams of K2O

Explanation:

4 0
3 years ago
How would you prepare 2.5 L of a 0.800M solution of KNO3?
statuscvo [17]
First  find the mass of <span>solute:

Molar mass KNO</span>₃ = <span>101.1032 g/mol

mass =  Molarity * molar mass * volume

mass = 0.800 * 101.1032 * 2.5

mass = 202.2064 g of KNO</span>₃

<span>To prepare 2.5 L (0800 M) of KNO3 solution, must weigh 202.2064 g of salt, dissolve in a Beker, transfer with the help of a funnel of transfer to a volumetric flask, complete with water up to the mark, capping the balloon and finally shake the solution to mix.</span>

hope this helps!
7 0
3 years ago
In June there are fewer hours of daylight and less direct sunlight in the
Dafna11 [192]
<span>In June there are fewer hours of daylight and less direct sunlight in the Southern Hemisphere.

Your answer is <em>Southern Hemisphere</em><em></em>.

</span>
5 0
3 years ago
Other questions:
  • Do you think “doing the wave” is a wave? Why or why not?
    11·1 answer
  • What two-step process separated the cans into aluminum, steel, and tin?
    7·1 answer
  • What will happen to the final pressure of a cylinder when the volume is doubled.
    11·1 answer
  • Chemical equation for SO + H2O
    7·1 answer
  • Using the example in the above information determine the empirical formula of a compound if a sample contains 0.130 g of nitroge
    11·1 answer
  • Why is the area called the Fertile Crescent?
    14·1 answer
  • How many moles of Fe contains 3.41 x 1023 Fe atoms?
    14·2 answers
  • I NEED THIS ANSWER QUICK
    12·1 answer
  • Taylor has a mass or 500 grams
    9·1 answer
  • What change(s) would increase the number of deaths in the weebug population?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!