does food passes through liver, pancreas and appendix?
yes or no?
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Answer: This is an oxidation-reduction (redox) reaction:

3 C-II - 12 e- → 3 CII (oxidation)

4 CrVI + 12 e- → 4 CrIII (reduction)

C2H5OH is a reducing agent, K2Cr2O7 is an oxidizing agent.

Answer:

I think the coefficient is 4

Answer:

I think 10.5 or 10.55

Explanation:

Hope this helps :)

Answer:

687.974 is your answer

Explanation:

Answer:

your creating a animal/creature

Explanation:

a human is a mammal we grow use energy reproduce and change our clothes to respond to our surroundings

Answer:

1.17x1024 molecules 2) 0.13 moles

Explanation:

hope this helps

At the equivalence point, the NaF completely reacts with the HCl

The correct option that gives the equivalence point when titrating NaF solution with HCl(aq), occur at a pH value is option c);

c) Below 7 because it is determined by HF (aq)

Reason:

The ionic equation of the reaction taking place in the titration is presented as follows;

Therefore, by removing the spectator ions, we get;

Therefore;

The net ionic equation is the formation of hydrofluoric acid, HF, which is a

weak acid, therefore, the pH value will be below 7 because it is determined

by HF

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Answer:

A. The metal and point

Explanation:

Elements that can conduct electric current are generally metals. However, the nonmetal carbon in the form of graphite is a good conductor of electricity.

Answer:

1.8 mol

Explanation:

concentration (M) = no. of moles (mol) ÷ volume (dm³)

no. of moles = concentration ×  volume

                     = 6 × 300 / 1000

                      =  1.8 mol

Answer:

b and c

Explanation:

b nuclear energy and d is radiology dating if I am correct

The pKa of formic acid is 3.75. At pH of 5.00, b) [formate] > [formic acid].

Formic acid is a weak acid. Thus, together with its conjugate base (formate) they form a buffer system. We can calculate the pH of a buffer system using Henderson-Hasselbach's equation.

[tex]pH = pKa + log \frac{[formate]}{[formic\ acid]} \\\\5.00 = 3.75 + log \frac{[formate]}{[formic\ acid]}\\\\\frac{[formate]}{[formic\ acid]} = 17.8[/tex]

As expected, at a pH above the pKa, the concentration of formate is higher than that of the formic acid.

The pKa of formic acid is 3.75. At pH of 5.00, b) [formate] > [formic acid].

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Answer:

Meteorologists use computer models to predict the weather. And computational power has come an extended way. Yet meteorologists still have trouble correctly predicting the weather over some days. Sometimes they don’t even comprehend right over 24 hours! Why does this happen? Their ability to predict the weather is restricted by the number of available data, the time available to research it, and therefore the complexity of weather events.

Explanation:

Expressing personal ability to predict weather is limited by the amount of data available, the amount of time available to research it, and thus the complexity of weather events.

Weather forecasting is the prediction of the weather using physics principles supplemented by a variety of statistical and empirical techniques.

The goal of weather prediction is to provide information that people and organizations can use to reduce weather-related losses.

It also improve societal benefits such as life and property protection, public health and safety, and economic prosperity and quality of life.

As much information as possible about the current weather and the state of the atmosphere is gathered.

Temperature, pressure, humidity, and wind speed observations are collected from around the world and fed into powerful supercomputers.

Three factors limit the ability to predict the weather:

Thus, weather can be predicted only as probable, not definite.

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Answer:

1. Because a Francium atom is deeper down the alkali metals, it is much easier to lose a valence electron.

2. A fluorine atom can easily gain a valence electron, but it could not easily lose a valence electron because it is one electron away from filling the outer shell

Explanation:

The answer is the explanation

Considering the change of units, there are 2.27×10²⁵ atoms of carbon per pound.

You know that there are 6.02x 10²³ atoms of carbon per 12 grams.

On the other hand, you must make a change of units. For that you must know that 1 gram equals 0.00220462 pounds. Then you can apply the following rule of three: if 1 gram is equal to 0.00220462 pounds, 12 grams is equal to how many pounds?

[tex]mass=\frac{12 gramsx0.00220462 pounds}{1 gram}[/tex]

mass= 0.0264555 pounds

12 grams equals 0.0264555 pounds. So if 12 grams contains 6.02x 10²³ atoms, 0.0264555 pounds contains that many moles. Then you can apply the following rule of three: if 0.0264555 pounds contains 6.02x 10²³ atoms, does 1 pound contain how many atoms?

[tex]amount of atoms=\frac{1 poundx6.02x10^{23} atoms}{0.0264555 pounds}[/tex]

amount of atoms= 2.27×10²⁵ atoms

Finally, there are 2.27×10²⁵ atoms of carbon per pound.

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Answer:

a. HCl + KOH

b. HCHO₂ + LiOH

Only the first H in HCHO₂ is acidic

c. N₂H₄ + HCl

Both N atoms in N₂H₄ are basic, so the compound reacts with 2 mol of HCl.

Explanation:

Answer:

se hhgggggggg I no

Answer:

1) Cl

2) O

3) O

4) S

5) N

6) P

7)N

Explanation:

Answer:

carboxylic acid

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Answer:

p stands for protons. You can identify the element by matching the atomic number with the number of protons.

The answer is Potassium in this case.

For the reaction

3 Ni2+(aq) + 2 Cr(OH)3(s) + 10 OH- (aq)  →  3 Ni(s) + 2 CrO42-(aq) + 8 H2O(l) G = +87 kJ/mol

Given:

(Ni2+(aq) + 2 e- →  Ni(s)) x 3 Ered = -0.28 V

(CrO42-(aq) + 4 H2O(l) + 3 e- →  Cr(OH)3(s) + 5 OH-(aq)) x 2

_____________________________________________________________________________________

3 Ni2+(aq) + 6 e- →  3 Ni(s)

2 CrO42-(aq) + 8 H2O(l) + 6 e- →  2 Cr(OH)3(s) + 10 OH-(aq)

Answer:

We can just use the formula for the volume of sphere which is 4/3 PI R cubed R is the radius. So if you have a balloon that's a sphere.

Explanation:

A volcano can be defined as an opening on the surface of a planet that allows material warmer than surroundings to escape from its interior. Therefore, option (B) is correct.

A volcano can be described as an opening in the earth's crust through which lava, volcanic ash, and gases escape from its interior. When this material escapes, then eruptions can be calmer, with gentle flows of material, or can be explosive, sending material high into the sky.

When pieces of Earth's crust slowly move away from each other, magma can rise. The magma rises to fill in space and underwater volcanoes can form.

The tectonic plates can also move toward each other when magma rises. The part of Earth's crust can be forced deep into its interior which can cause the crust to melt and rise as magma.

The magma can also rise over hot spots. Hot spots can be defined as the hot areas inside of Earth where magma heats up and becomes less dense. With each way of rising the magma can form volcanoes.

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they are caused by winds and changes in seawater density.

Answer:

5.492*10^10

Explanation:

1g=1000000microgram

Answer:

Foam is not a state of matter, it is a mixture of two states: gas and (usually) liquid. There are also gas-solid foams.Explanation:

Answer:

Foam is not a state of matter, it is a mixture of two states: gas and (usually) liquid.

Explanation:

Answer:

it determines an element's atomic number..

The best way to determine the concentration of AgNO3 dissolved in solution is by precipitation using a chloride.

Precipitation is one of the oldest and handy methods of chemical analysis. It involves the addition of a reagent which is known to form a precipitate with the test solution.

The precipitate is now recovered from solution, dried and weighed. Stoichiometric calculations show the amount of the test substance dissolved in the test solution.

In this case, NaCl can be used to carry out a precipitation as follows;

AgNO3(aq) + NaCl(aq) -------> AgCl(s) + NaNO3(aq)

The AgCl precipitate is recovered dried and weighed and then the amount of AgNO3 in the dissolved solution is determined.

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Answer:

Ethanol is oxidised by acidified sodium dichromate in a test tube reaction, firstly to form ethanal (acetaldehyde), and with further oxidation, ethanoic acid (acetic acid)

Procedure

Place about 3 cm3 of acidified sodium dichromate solution in a boiling tube.

Use a teat pipette to add 5–7 drops of ethanol, with shaking.

Cool the mixture in the tube under a tap. Note the sweetish smell of ethanal (acetaldehyde) at first, then becoming sharper as oxidation continues and forms ethanoic acid (acetic acid).

When the reaction has subsided, the mixture can be warmed gently; the smell of ethanoic acid will become more noticeable.

The process of how we would obtain ethanal free from ethanol is described in the explanations below.

The procedure for achieving this in the laboratory is as follows;

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Answer:

C 1.0 x 10-14 mol/L

Explanation:

also do you do connections academy?