pleaseee HELPPP!!!! Pleaseeeee

Pleaseee HELPPP!!!! Pleaseeeee

Answers

Answer 1

Answer:

Oxidation takes place at anode

Reduction takes place at cathode

In the equation Zn has changed to Zn2+. This means oxidation number of Zn has increased from 0 to +2. So Zn is oxidised.

In CuSO4 , Cu2+ and SO4 2- ions are present.

Cu2+ has changed to Cu(s) meaning oxidation number of Cu has reduced from +2 to 0. So Copper is reduced.

So Copper rod is the cathode since it has been reduced and Zn rod is the anode because it has been oxidised.

Also electrons always move from anode to cathode so that also shows us Copper is the cathode


Related Questions

wht will react with acid to giv bluish green salt nd water ??

Answers

Explanation:

When dilute HCl is added to a small amount of copper oxide in a beaker, a greenish-yellow gas is released and a bluish-green solution is formed. Since the metal oxides such as a Copper oxide (CuO) are basic in nature, it reacts with acids such as HCl to form the corresponding salt and water.

One of the few resources on Mars is

Answers

Answer:

iron .. titanium.. nickel....aluminum... sulfur... and calcium

A balloon filled with helium gas occupies 800 mL at a temperature of 27°C what would the volume of the balloon be at 132°C

Answers

The volume of the ballon would be 35

a brief description of atoms and how they relate to
molecules and compounds

Answers

Answer:

Explanation:

Atoms are the thing that make up molecules and compounds. Molecules contain two or more atoms and are held together by covalent bonds

in your own words how do plants on Earth affect the amount of carbon in Earth’s atmosphere?

Answers

Answer:

Plants take carbon dioxide out of the atmosphere, but they also have other effects, such as changing the amount of evaporation from the land surface. ... The plants absorb carbon dioxide for photosynthesis through the same pores (called stomata). But when carbon dioxide levels are high, the leaf pores shrink.

Explanation:

Whymilk is taken as mixture​

Answers

Explanation:

Main compounds of milk are lactose and casein. And it is also called a colloidal mixture (i.e. in which one substance of microscopically dispersed insoluble or soluble particles is suspended throughout another substance). Therefore milk is regarded as a mixture not as a pure substance. So this is the required answer.

Can somebody help me with this please?

Answers

Answer:

So what you want to do is to place sulfur on top with the two fluorine's  on the bottom left and right hand side at slight angles. You don't want to make it look interconnected as one whole bond. Draw a single line from each "F" to the "S" to model two fluorine atoms bond to one sulfur atom (Single bond, only one electron is being shared between each).

What is activation energy

Answers

Answer: Activation energy is defined as the minimum amount of extra energy required by a reacting molecule to get converted into product. It can also be described as the minimum amount of energy needed to activate or energize molecules or atoms so that they can undergo a chemical reaction or transformation.

Explanation:

can anyone tell me "what are the exceptions of law of reciprocal proportions??"​

Answers

The law states that if two different elements combine separately with a fixed mass of a third element, the ratio of the masses in which they combine are either the same or are in simple multiple ratio of the masses in which they combine with each other .

What was the flaw in reasoning that caused Mendeleev to mix up the placement of Ar and K, Co and Ni, and Te and Ni?

Answers

Answer:

Can you explain your question I don't understand


Properties of nonmetals include

a.high boiling point.
b.ability to conduct heat.
c.dull appearance.
d.none of the above

Answers

Answer:

c.dull appearance

Explanation:

Nonmetals are dull,poor conductors of heat and electricity that have lower melting points than metals,the rest of the answer choice are properties of metal.

Hope this helps :)

How many grams of hydrogen are needed to fully react 621. 9 grams of nitrogen gas.

Answers

Answer:

9 grams of nitrogen gas

Explanation:

Two particles with the same charger will always____each other when brought close together

Answers

If two particles have the same charge they will repel each other when brought close together.
when two particles with that same charger will repel when brought close together

Please help I will give brainliest ;3

Answers

Answer:

oxygen, carbondioxide

carbondioxide, oxygen

Oxygen, carbon monoxide,Oxygen, carbon monoxide

as soda gets warm, it goes flat. why? relate this to solubility.

Answers

Answer:

It's because the solubility of gases in water is inversely proportional to the temperature, so it means when the temperature is increased, the solubility decreases, and the gases tend to get out from the soda

carbon reduction process is not applied for extraction of alkali metal . why ?​

Answers

Answer:

The alkali metals are the highly electropositive metals. Highly electropositive metals cannot be extraction carbon reduction process, because these metals do not react with carbon

Explanation:

Which term refers to how close a group of measurements are to each other

Answers

Answer: precision

Explanation: precision is how close the different measurements are to each other and accuracy is how close the measurements are to the true value

Hund's rule: states that electrons always enter an empty orbital before they pair up.

Answers

Answer:

true

Explanation:

NEEEEEDD HELP!CHEMISTRY

Answers

ANSWER

1. H2O

EXPLANATION

A water molecule consists of two atoms of hydrogen linked by covalent bonds to the same atom of oxygen. Atoms of oxygen are electronegative and attract the shared electrons in their covalent bonds

ADDITIONAL INFORMATION

How to differentiate between ionic and covalent bonds ?

There is a couple different ways to determine if a bond is ionic or covalent. By definition, an ionic bond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals. So you usually just look at the periodic table and determine whether your compound is made of a metal/nonmetal or is just 2 nonmetals.

Which are effects of long-term exposure to mustard gas? Select all that apply. One, some, or all responses may be correct.

Answers

The effects of long-term exposure to mustard gas causes mortality and chronic respiratory disease.

Exposure to mustard gas in the long term can result in mortality from influenza, pneumonia as well as chronic breathing disease. Exposure for long term leads to respiratory complications and septic shock. Extensive breathing in the environment of mustard gas can cause chronic respiratory disease, respiratory infections or death.

Extensive eye exposure to this gas can cause permanent blindness. Exposure to mustard gas may also increase the chances of lung and respiratory cancer so we can conclude that mustard gas is lethal and can cause a number of diseases in a person who is exposed to it.

Learn more: https://brainly.com/question/25686553


c) ¿Qué ocurriría si tenemos disueltos 200 g de
nitrato de potasio en 300 g de agua a 60°C
y enfriamos la disolución hasta los 10 °C?

Answers

ayyyy amiga la mera neta no se perdón hahaha sorrey

Rheumatoid arthritis is a disorder in which the joints swell and cause pain. Rheumatoid arthritis causes the body’s own immune cells to attack the membrane of the joints. Which body system does rheumatoid arthritis affect?

Answers

Answer:

Immune system

Explanation:

Rheumatoid arthritis is an autoimmune disease. Normally, your immune system helps protect your body from infection and disease. In rheumatoid arthritis, your immune system attacks healthy tissue in your joints. It can also cause medical problems with your heart, lungs, nerves, eyes and skin.


9) What is the final pressure in the container shown below after the valve is opened and the gases are allowed
to flow? (The gases do not act)
0
4.00 am
3.00


NE
2.00 am
2.00 L

Answers

A 3.00-L container with O₂ at 4.00 atm is connected to a 2.00-L container with Ne at 2.00 atm, resulting in a final pressure of 3.20 atm in the container.

We have 2 containers connected by a valve.

One container has a volume of 3.00 L and contains O₂ at 4.00 atm. The other container has a volume of 2.00 L and contains Ne at 2.00 atm.

When the valve is opened, the total volume is the sum of the 2 containers.

[tex]V_2 = 3.00 L + 2.00 L = 5.00 L[/tex]

Assuming constant temperature and ideal behavior, we can calculate the final pressure of each gas using Boyle's law.

O₂

[tex]P_1 \times V_1 = P_2 \times V_2\\\\P_2 = \frac{P_1 \times V_1}{V_2} = \frac{4.00atm \times 3.00L}{5.00L} = 2.40atm[/tex]

Ne

[tex]P_1 \times V_1 = P_2 \times V_2\\\\P_2 = \frac{P_1 \times V_1}{V_2} = \frac{2.00atm \times 2.00L}{5.00L} = 0.800atm[/tex]

The final pressure in the container will be the sum of the final pressures of the gases.

[tex]P = 2.40 atm + 0.800 atm = 3.20 atm[/tex]

A 3.00-L container with O₂ at 4.00 atm is connected to a 2.00-L container with Ne at 2.00 atm, resulting in a final pressure of 3.20 atm in the container.

Learn more: https://brainly.com/question/1437490

What causes streams to form?
O absorption
O precipitation
O glaciers
O lakes

Answers

Answer: essay the answer is B: precipitation

Explanation:

Why is it possible to collect hydrogen gas over water?

Answers

A gas produced in a chemical reaction can be collected by water displacement. Because the gas is collected over water, it is not pure but is mixed with vapor from the evaporation of the water. Dalton's law can be used to calculate the amount of the desired gas by subtracting the contribution of the water vapor.

What is the mass of 1,300 cm of gasoline? The density of gasoline is 0.67 g/cm.

Answers

Answer:

Volume x Density = Mass of a substance

1300 x 0.67 = 871

The mass is 871 (unit)

đơn chất nào sau đây tác dụng với dung dịch axit sunfuric loãng sinh ra khí ?
a đồng
b cacbon
c nhôm
d lưu huỳnh

Answers

Answer:

C. Al

Explanation:

2Al+ 3H2SO4(l)------> Al2(SO4)3+ 3H2

How do ionic bonds form?
Quick

Answers

Answer:

Explanation: ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.

superscript Coefficient

Me think

When an organism dies it is exposed to many different types of biotic and abiotic factors biotic factors include?

Answers

Answer:

the organisms themselves,other organisms,interactions between living organisms, and even their waste.

There is 200 grams of water on a stove. The water is currently 25 C. How much energy in joules must be used to raise the water to 90 C?

Answers

Answer:

q

=

64 kJ this is answer. .

Other Questions
The major cause for the decline in the worldwide catch of fish since 1990 is: I need help asap please help me Question 1oIn A CDE, U is the centroid, UK = 12, EM = 21, and UD = 9. Find CU.-U 12K9Next QuestionMCheck Answer2021 McGraw-Hill Ede Which sentence from Barrio Boy gives the word mother a negative connotationWhich sentence uses the denotation of the word heart? In 2-3 paragraphs, explain the historical significance of the Brown v. Board of Education case in the larger context of minority rights. Consider the following in your response:What is the significance of the equal protection clause of the Fourteenth Amendment? Why did both Plessy and Brown use that clause in their suits?What impact did Plessy v. Ferguson have on minority rights? What was the significance of separate but equal?What impact did Brown v. Board of Education have on minority rights?How does the ruling in the Brown v. Board of Education case connect to the idea of the balance between majority and minority described in Thomas Jeffersons First Inaugural Address?What checks and balances protect the rights of the minority? Why do I have to watch adds Sheridan Company uses a periodic inventory system. For April, when the company sold 450 units, the following information is available. Units Unit Cost Total Cost April 1 inventory 280 $ 17 $ 4,760 April 15 purchase 420 20 8,400 April 23 purchase 300 22 6,600 1,000 $ 19,760 Calculate weighted average cost per unit. A new company president is said to have caused the company "to do a 180." Before the new president, the company was losing 10,000 per month .What is the company most likely doing under the new president? Someone help for #36 please Why did the Sung establish a navy?-to invade and conquer Korea-to invade and conquer Japan-to defend against the Jin-to explore the Indian OceanHELP PLEASE Which one is called the Information Super Highway? a. E-mail b. Mobile phone c. Internet d. Land phoneclass 6 2b - 3 / 3 (fraction) - 5 = 10. Solve for B Match the graphplease :) I need help 7 through 15 I will reward you brainliest Find (gxf) when f(x)=5x-7 and g(x)=2x+3 What attraction of the carnival immediately appeals to Charles Holloway zadanie 1 strona 21what do you remember about crimes committed by animals?Anser the questions. It takes Rick, traveling 36mph, 40 minutes longer to go a certain distance than it takes Evelyn traveling at 84mph. Find the distance traveled how does the causes and effect play a role in the sun earth moon relationship (PLEASE HELP) TO KILL A MOCKINGBIRDNow that you have a screenplay, if you adapt every single chapter from your novel into a scene in a movie, your movie will be too long. So, as the screenwriter, you have a decision to make. Which two scenes from your book are crucial and must be filmed for the movie, and which two scenes are not as important and can be left out? Now, in a written memo, you have to convince the producers of your decision.In a 4-8 sentence paragraph, you will: Write a topic sentence to present the main idea of your paragraph. Describe two scenes that are crucial to the movie and why they must be filmed. Describe two scenes that not important and explain why they can be left out. Use complete sentences. Write in third-person point of view.