Chemistry High School

polease help 20pts
chemistry redox

Polease Help 20pts Chemistry Redox

Answers

Answer 1

Answer:

A is mg because it is losing 2 electrons

B is N2

C Mg as oxidation is lose of electrons

D is N2 as reduction is gain of electrons

Explanation:

you can easily remember as OIL RIG in term of electrons as Oxidation is Lost of electrons. Reduction is Gain of electrons.

Related Questions

What is the name of an isotope with 23 protons and 25 neutrons?
Select one:

Cadmium

Vanadium

Chromium

Manganese

Answers

Answer: Vanadium

Explanation:

What is the equilibrium constant for the reaction at 644 K ?

Answers

What is the equilibrium constant for the reaction at 644 K ? What is the equilibrium constant for the reaction at 644 K ? The equilibrium constant, Kfor the following reaction is 1.55x0 at 644 When a sufficientiy large sample of HI(g) is introduced into an evacuated vessel at 644 K, the equilibrium concentration of I2)s found to be 0.303 M Calculate the concentration of HI in the equilibrium mixture. more group attempts remaining Submit Anawer Retry Entire Group Consider the following reaction where K 0.159 at 723 K. A reaction mixture was found to contain 2.07x102 moles of N2), 4.45x10-2 moles of H2) and 6.80x10-* moles of NH3() in a 1.00 liter container. Is the reaction at equilibrium? If not, what direction must it run in order to reach equilibrium? The reaction quotient,equals The reaction A. must run in the forward direction to reach equilibrium. B. must run in the reverse direction to reach equilibrium. Submit Anawer Retry Entre Group more group attempte remalining

1. In sheep, a gene with two alleles decides wool color. The allele for white wool is

dominant to the allele for black wool. If two heterozygous sheep mate, what

percentage of the sheep will have white wool? Record your answer as a

percent.

White wool

Black wool

HINT: Create a Punnett square on scratch paper to determine the answer.

Answers

The percentage of the sheep which will have white wool is 75 percent.The percentage of the sheep which will have black wool is 25 percent.

What is an Allele?

This is defined as a variant form of a gene. We were told that allele for  white wool is dominant to the allele for black wool and two heterozygous sheep mated.

When we cross Ww and Ww we get WW, Ww, Ww, ww. Since white is dominant then the percentage is 3/4 = 75 percent.

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Which two organisms are most likely to be competitors?

chipmunk, cow
snake, hawk
snake, badger
chipmunk, badger

Answers

Chipmunk, badger I believe

Anyone know this? Cuz I don’t this one is

Answers

Answer:

its legislative.

Is god real I don’t really no but say yes

Answers

Answer:

Yes

Explanation:

We have been created by him therefore we would not have been created if there was no God.

Please help solve this I’ll award brainliesttt

Answers

Answer:

types of elements nacl MGS

behavior shared between atoms tranferred from one to another

properties high melting poin low melting point

example SI-o metal + non metal

example H-H only non metal elements

Explanation:

Calculate the volume occupied by 10 moles of hydrogen gas at 145K and 705 Torr.
2.05 L
14L
128 L
0.007 L

Answers

The volume occupied by 10 moles of hydrogen gas at 145K and 705 Torr is 128.01L.

How to calculate volume?

The volume of a gas can be calculated using ideal gas law equation as follows:

PV = nRT

Where;

P = pressureV = volumen = number of molesR = gas law constantT = temperature

P = 705torr = 0.93atmV = ?T = 145Kn = 10R = 0.0821 Latm/molK

0.93 × V = 10 × 0.0821 × 145

0.93V = 119.05

V = 128.01L

Therefore, the volume occupied by 10 moles of hydrogen gas at 145K and 705 Torr is 128.01L.

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a
Scientists have observed that the average surface temperature of the Earth has been increasing. This increase has
affected the oceans. Glaciers and ice sheets melt, and water from this melting process becomes part of the oceans.
The increasing temperature of the Earth's surface also warms ocean waters. As a result, the volume of the oceans
expands. These two events affect sea level.
What would happen to sea level if the average surface temperature trend that was observed since the 1960s
continues?
A) Sea level will rise, then will suddenly fall.
B) Sea level will remain the same.
C) Sea level will continue to fall.
D) Sea level will continue to rise.
Please select the best answer from the choices provided
O A
OB
Save and Exit
Next
Submit
Mark this and return

Answers

Answer:

D) Sea level will continue to rise

A 6.39L balloon filled with gas is warmed from 239.3K to 305.9K. What is the volume of the gas after it is heated?

Answers

Answer:

69.271837183727718371

what the symbol of sodium peroxide

Answers

Answer:

The Symbol Of Sodium Peroxide Is Na2O2

Answer:

Na2O2

Explanation:

which of the following changes different colours in alkalis,acids,and neutral substances?

A red litmus paper
B Blue litmus paper
C universal indicator
D all of the above​

Answers

B I think if not it’s for sure a
A and B I think we did some experiments in chemistry but I don’t remember.

complete and balance the following equation b. Br2 + Nacl​

Answers

Br2 + 2NaCl —> 2NaBr + Cl2

HELP!!!

Find the volume of a balloon of gas at 842 mm Hg and –23oC, if its volume is 915 mL at a pressure of 1170 mm Hg and a temperature of 24oC.

(I will give brainliest! Thank you so much!)

Answers

Answer:

2.54kpa

Explanation:

p*v/t = constant

6.58/539=p2/2111

p2=211(6.50/539)

Answer:

2.53kpa

Explanation:

p1*v1/t1 = constant

the constant can be changed to p2*v2/t2

v2 can be removed from equation as it is constant

Using the notation just described, represent a cell based on the following reaction:

ClO3−(aq)+3Cu(s)+6H+(aq)→Cl−(aq)+3Cu2+(aq)+3H2O(l)

Pt is used as an inert electrode in contact with the ClO3− and Cl− .

Drag the appropriate labels to their respective targets. For neutral species, leave the pink target blank.

Answers

The cell notation of the redox reaction between Cu and ClO₃⁻ is:

Cu/Cu²⁺//ClO₃⁻//Cl⁻/Pt

What is a voltaic cell?

A voltaic cell or electrochemical cell is a device which produces electricity from chemical reactions occuring within the cell.

The reactions occuring in a voltaic cell are redox reactions.

Oxidation occurs at the anode while reduction occurs at the cathode.

In the given reaction between Cu and ClO₃⁻ as shown below:

ClO₃⁻ (aq) + 3 Cu (s) + 6H⁺ (aq) → Cl⁻ (aq) + 3 Cu²⁺ (aq) + 3 H₂O (l)

Cu is oxidized as follows: 3 Cu (s) → 3 Cu²⁺
ClO₃⁻ is reduced as follows: ClO₃⁻ (aq) → Cl⁻ (aq)

The voltaic cell notation is as follows where Pt is used as an inert electrode in contact with the ClO₃⁻ and Cl⁻:

Cu/Cu²⁺//ClO₃⁻//Cl⁻/Pt

Therefore, the cell notation of the redox reaction between Cu and ClO₃⁻ shows that Cu is oxidized while ClO₃⁻ is reduced.

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What are 3 types of insects that belong to Phylum ?

Answers

Answer:

3 examples are beetles, a fly, and bees. Others include ants lady bugs and butterflies

Explanation:

Denzel has a flask containing a mixture of rocks, soil, iron filings and salt. He needs to separate the four components of the mixture. Create a method to successfully separate each of the components of the mixture. HINT: use their physical and/or chemical properties.

Answers

Answer:

Sift the mixture to separate the rock from the iron filings, soil and salt.

You can then use a magnet to separate the iron filings from the salt and soil.

Afterwards, you can pour water into the remaining salt- soil mixture. Salt will dissolve but the soil will remain at the bottom of the water.

If you want to separate the salt from the water, you can boil it till all the water evaporates. The only thing that'd be left in the pan is salt.

What’s the answer for this?

Answers

Answer:

it will fall then rise and return to ×

state 3 commercial uses of oxygen​

Answers

Answer:

Brainliest Please !!!!!

Which list of phases of H2O is arranged in order of increasing entropy

Answers

Answer: Solid, liquid, and gas are the three phases of H2O that are listed in order of increasing entropy.

The haphazard motion of water molecules in molecular water gives it the maximum flexibility.

Based on the Law of Conservation of Mass, what's the minimum amount of Magnesium that will react with 32g of Oxygen to produce 80.6g of Magnesium Oxide?​

Answers

mass before reaction = mass after reaction

Mg + O = MgO

Mg + 32 = 80.6

Mg = 80.6 - 32 = 48.6 (a)

sodium oxide can react with water to produce sodium hydroxide. in the reaction, how many moles of sodium hydroxide will be produced.

Answers

Answer: 2 mol of NaOH

Explanation:

The balanced chemical equation for the reaction is:

Na2O + H2O --> 2NaOH

Looking at this, we can see that 1 mol of Na2O will react with 1 mol of H2O to produce 2 mol of NaOH

Many cultures eat grasshoppers, what nutrients do grasshoppers have that is good for you?

Answers

Answer:

Grasshoppers are a good source of unsaturated fats and they can lower risk of diseases.

Explanation:

Please, I need this now.
Drag each label to the correct location on the image.
Match each situation to the circuit diagram that represents it.

Answers

Answer: if anyone needs it <3

Explanation:

In 1-2 sentences, describe what happens to atoms of a compound when a chemical reaction occurs​

Answers

In a chemical reaction, bonds between atoms in the reactants are broken and the atoms rearrange and form new bonds to make the products.

The atoms get rearranged into new substances.

State the functional groups that undergo cracking and substitution reaction.

Answers

Unsaturated organic compounds with a carbon-to-carbon double bond and alkynes with a carbon-to-carbon triple bond, as well as aldehydes and ketones with a carbon-to-oxygen double bond, undergo addition reactions.

4. What is the movement of blood through your blood vessels called?
circulation
digestion
nervous

Answers

Answer:

circulation

Explanation:

The movement of the blood through the heart and around the body through the narrow vessels is called circulation which makes up the cardiovascular system.

Answer:

Circulation

Explanation

digestion is the process of breaking down food by mechanical and enzymatic action in the alimentary canal into substances that can be used by the body and its the only one that makes sence

please help I'm stuck on this!
What effect does sunlight have on CO2 molecules?

Answers

The Sun! The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas.

Answer:

Carbon Dioxide is not affected by sunlight. But the radiation changes direction when it hits a carbon dioxide molecule

Explanation:

A sample of an ideal gas has a volume of 2.22 L at 284 K and 1.11 atm. Calculate the pressure when the volume is 1.95 L and the temperature is 305 K.

Answers

Answer: 1.36 atm

Explanation:

PLEASE HELPPPPP I WILL GIVE BRAINLIEST!!!!!
How many grams of ammonium sulfate can be produced if 2500.0 g of H2SO4 react with excess NH3 according to the equation 2NH3(aq) + H2SO4(aq) → (NH4)2SO4(aq)? Calculate the percent yield if 3100 g (NH4)2SO4 were actually produced.
-Calculate the theoretical yield of ammonium sulfate.
-Calculate the percent yield for the associated question
-Write the unit for the theoretical yield (see related question)

Answers

If 2500 grams of H2SO4 react with excess NH3 according to the illustration, the amount of ammonium sulfate that can be produced would be 3,370.92 grams. If only 3100 grams of ammonium sulfate were produced, the percentage yield would be 91.96%.

Stoichiometric calculations

From the equation of the reaction:

2NH3(aq) + H2SO4(aq) → (NH4)2SO4(aq)

The mole ratio of H2SO4 and (NH4)2SO4 is 1:1

Mole of 2500 grams H2SO4 = 2500/98 = 25.51 moles

Equivalent mole of (NH4)2SO4 = 25.51 moles

Mass of 25.51 moles (NH4)2SO4 = 25.51 x 132.14 = 3,370.92 grams

If 3100 g of (NH4)2SO4 were actually produced, the percentage yield would be:

Percent yield = 3100/3370.92 x 100 = 91.96%

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