i will give brainliest pls help

what chemical property is used when cooking

Answers

Answer 1

Answer:

Chemical properties of food are those properties that cannot be measured without altering the chemical composition of the food material.

Explanation:

Answer 2

Answer:

The property of chemical reactive foods is used.Let's take an example of cooking an egg.Cooking an egg is a chemical reaction because you can't change cooked egg into raw or its previous state.

There are two types of reactions

Physical reactionChemical reaction

Related Questions

In 1–2 sentences, explain why weather can be predicted only as probable, not definite.

Answers

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.

What is weather forecasting?

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:

The amount of available data.The time available to analyze it.The complexity of weather events.

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

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Which of the following are uses for radiation? Check all that apply.
O A. Food preservation
B. Energy production
C. Medical applications
D. Dating artifacts



(I have a feeling it’s b and c but I want to double check )

Answers

Answer:

b and c

Explanation:

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

B because energy and radiation have to do with heat

During oxidation of ethanol to ethanol, the ethanol formed was found to be contaminated with unconverted ethanol, describe how you would obtain ethanal free from ethanol​

Answers

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.

In Chemistry, Ethanol undergoes oxidation in the presence of sodium dichromate plus sulphuric acid to yield ethanal and water.

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

Step 1; Measure a quantity of a solution of sodium dichromate acidified in a dilute sulphuric acid and pour into a test tube.

Step 2; Add excess ethanol. This is because if we don't do so there will be plenty of oxidizing agent to carry out a second operation which changes the aldehyde to ethanoic acid. However, we need only the aldehyde.

Step 3; When the aldehyde ethanal begins to form which will be evident by the change in the colour of solution from orange to green, then the mixture should be distilled from the test tube and tbethe aldehyde collevted so that it doesn't undergo additional oxidation into ethanoic acid.

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What state of matter is foam?

Answers

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:

Perform the following calculation and report the answer with the correct number of significant figures.
755.684 - 67.71 =

Answers

Answer:

687.974 is your answer

Explanation:

31. Why would a valence electron be easier to steal from a Francium atom than a Fluorine
atom? Give two reasons.
1.
2

Answers

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

Please select the word from the list that best fits the definition


The compound, CH3COOH, is an example of which type of organic compound?

alcohol
amine
amino acid
carboxylic acid

Answers

Answer:

carboxylic acid

zhhzhdhdjhd

what would be the best way to determine the amount of AgNO3 in the dissolved solution? Justify your answer

Answers

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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calculate the volume of the gas in the balloon using the equation for volume of a sphere​

Answers

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:

Which of the following is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior?
Question 10 options:

Tsunami


Volcano


Tornado


Earthquake

Answers

It would be a volcano =)
I’d appreciate brainliest!

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.

What is volcano?

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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help please thank you!!!!

Answers

Answer:

I think the coefficient is 4

There are 6.02 x 10 ^ 23 atoms of carbon per 12 grams. How many atoms of carbon per pound are there?

Answers

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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Consider the following reactions:

3 Ni 2+(aq) + 2Cr(OH)3 (s) + 10 OH –(aq) → 3 Ni (s) + 2 CrO4 –2 (aq) + 8 H2O (l)

A) What is the value for n for this reactions?

B) Calculate the standard Gibbs Free-Energy

C) How long does it take a current of 5 A to deposit 95 g of nickel?

Answers

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)

3
Convert 5.492 x 104 grams to units of micrograms.
(Click to select 4
x 10
ug

Answers

Answer:

5.492*10^10

Explanation:

1g=1000000microgram


2. How many GRAMS of boron trichloride are present in 2.26*10^22 molecules of this compound?
___ grams.

Answers

Answer:

1.17x1024 molecules 2) 0.13 moles

Explanation:

hope this helps

From its position in the periodic table, determine which atom in each pair is more electronegative: (a) N or P (b) N or Ge (c) S or F (d) Cl or S (e) H or C (f) Se or P (g) C or Si

Answers

Answer:

p, get, s, s, c, se, SI

se hhgggggggg I no

Answer:

1) Cl

2) O

3) O

4) S

5) N

6) P

7)N

Explanation:

How to Study and make notes and what to do if everything seems important ​

Answers

It all depends on the subject you’re are studying for. Different subjects require different methods of studying. For example, science. Try doing practice questions and practice tests. Go back to old tests and see what mistakes you made. Read your old notes. Make flash cards of practice questions. Create a study guide of everything that you have done so far. Do active recall.

can u help me with this i confused with this

Answers

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

can you describe a carbon atoms for me please

thank you

Answers

Carbon (from Latin: carbo "coal") is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent-making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon makes up only about 0.025 percent of Earth's crust.

How to write the molecular equation of the following reaction. Also, identify the net ionic equation, the total ionic ecuation and the species that gets reduced and oxidized.

NaHCO3(ac) + HCl(ac)

Answers

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:

I got tha last one wrong Wha this one ?

Answers

Answer:

I think 10.5 or 10.55

Explanation:

Hope this helps :)

Explain how a density current might form in the Arctic Ocean

Answers

they are caused by winds and changes in seawater density.

Calculate the Gibbs Free-Energy and the standard Gibbs Free-

Energy by the cell in the given cell notation: Zn(s) |Zn2+(aq) || H+(aq)| H2(g) |Pt (s)

When [Zn+2] = 4.0 x 10 -3 M, [H2] = 0.010 M, [H+] = 1.0 M

PLEASE ANSWER THIS ILL GIVE MANY POINTS

Answers

[tex]\bull\sf \Delta H=4.0\times 10^{-3}M[/tex]

[tex]\bull\sf T=0.010M[/tex]

[tex]\bull\sf \Delta S=1.0M[/tex]

[tex]\\ \bull\sf\longmapsto \Delta G=\Delta H-T\Delta S[/tex]

[tex]\\ \bull\sf\longmapsto \Delta G=0.004-0.01(1)[/tex]

[tex]\\ \bull\sf\longmapsto \Delta G=0.004-0.01[/tex]

[tex]\\ \bull\sf\longmapsto \Delta G=-0.006J[/tex]

The pKa of formic acid is 3.75. At pH of 5.00, _______ .

a) [formate] < [formic acid]
b) [formate] > [formic acid]
c) Insufficient information to be determined.
d) [formate] = [formic acid]

Answers

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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please someone help me Balance this equation.
K2CrO7 + H2SO4 + 2C2H5OH = 3CH3COOH + 2K2SO4 + 4H2O + 2Cr2(SO4)3.​

Answers

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.

C.5A What atom is shown below? *
8 points
19 p
20 n
Cholrine
Argon
Calcium
Potassium

Answers

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.

2. Calculate the number of moles of NaOH needed to make 300 mL of 6 M solution?

Answers

Answer:

1.8 mol

Explanation:

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

no. of moles = concentration ×  volume

                     = 6 × 300 / 1000

                      =  1.8 mol

What does the number of
protons tell us about an
element?

Answers

Answer:

it determines an element's atomic number..

The number of protons determines and elements atomic number and is used to distinguish one element from another. The number of neutrons is terrible, resulting in isotopes, which are different forms of the same items that very only in the number of neutrons the possesses

When titrating a NaF(aq) solution with HCl(aq), the equivalence point will occur at a pH value ______ .

a) above 7 because it is determined by NaF(aq)
b) below 7 because HCl(aq) is a strong acid
c) below 7 because it is determined by HF(aq)
d) at 7 because it is determined by H2O(l)

Answers

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;

NaF + HCl → HF + NaClNa⁺ (aq) + F⁻ (aq) + H⁺ (aq) + Cl⁻(aq) → HF (aq)+ Na⁺(aq) + Cl⁻(aq)

Therefore, by removing the spectator ions, we get;

F⁻(aq) + H⁺(aq) → HF(aq)

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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Which option correctly shows the concentration of H3O+ ions in pure water?

7 mol/L

1.0 × 10-7 mol/L

1.0 x 10-14 mol/L

14 mol/L

Answers

Answer:

C 1.0 x 10-14 mol/L

Explanation:

also do you do connections academy?

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