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Which metal reacts spontaneously with NiCl2(aq)?


A) Au(s)

B) Cu(s)

C) Sn(s)

D) Zn(s)

Answers

Answer 1

Answer:

THE answer IS B)cu(s)

Explanation:

HOPE ITS HELP

Answer 2

The metal reacts spontaneously with aqueous solution of NiCl₂ is Zinc as it is more reactive.

What is reactivity series?

Electro chemical series is a reactivity series which tells about the reactivity of the metals present in any solution in the increasing order.

According to the reactivity series, Zinc is present at the upper position as compares to other three given metals and their reactivity will be represented as:
Zn > Ni > Sn > Cu > Au

So, zinc will replace the nickel atom from NiCl₂ solution.

Hence option (D) is correct.

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Related Questions

Which statement best discribes the usual form and funtion of a plants root system

Answers

Answer:

The chemical energy is used to form ATP bonds. ... Which statement best describes the relationship between the products of photosynthesis ... Usually sap quickly covers the wound, and then the tree covers the wound with new growth

Explanation:

BRAINLIST!!!!! (IF BOTH ARE ANSWERED)

Answers

Answer:

Action Force was the ball falling on the ground, the reaction force was it bouncing back up.

You see the first arrow pointing back, because the swimmer is pushing back against the wall. The second arrow would be pointing the other way, because the swimmer will extend their legs, pushing away from the wall.

Explanation:

Action forces is the ball falling in the ground
Reactions force is the swimming

A girl stands on a bathroom scale. In metric units, the scale indicates that her weight is 42

Newtons. This means the force of gravity is pulling her feet onto the scale with a force of 42

Newtons. With what force does the scale push back up against her feet?

Answers

Answer:

The bathroom scale pushes her back 42 metric units, the same as her weight. Newton's 3rd law says that how much ever you push onto some object, it pushes back onto you with that same amount of pressure.

Please mark me brainliest so that I get encouraged to keep up on answering these types of good answers.

What periodic element is from Europe

Answers

Answer:

Europium

Explanation:

Europium

Europium was isolated in 1901 and is named after the continent of Europe.

Europium - Wikipediaen.wikipedia.org › wiki › Europium

I think it would be Europium

Which statement best describes the motion of

the dye molecules in the water?

The dye molecules

o move in a directed way from high to low

concentration.

o move randomly through collisions in no

particular direction.

stay close to other dye molecules as they

move through the water.

Low

Check ansive

Answers

Answer:The statement that best describes the motion of dye molecule in water is directed from a region of high to low concentration. The motion of the particles of the dye in water is described as diffusion: diffusion is the movement of molecules of a substance from one position to another.

Explanation:

Option A is correct. The statement that best describes the motion of  the dye molecules in the water is "the dye molecules move in a directed way from high to low".

The motion of dye molecules in water is known to be random. Another name for random motion is Brownian motion and since diffusion is also Brownian motion, hence we can term the motion of the dye molecules in the water as "diffusion".

The water is held together by intermolecular forces and these forces are the ones that attract the molecules of the die carrying them away and making the process of molecular transport of the dye to be accelerated (moving from a region of high concentration to low concentration).

In conclusion, the statement best describes the motion of  the dye molecules in the water is "the dye molecules move in a directed way from high to low".

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__________ is an organism’s __________ or physical traits which is _________ by __________. Example: _______ _______, detached earlobes
PLSSS ANSWER ASAP I BEG PLAEASEEE

Answers

Answer:

.

Explanation:

________ are __________ for inherited traits.
PLSS ANSWER ASAP I BEG

Answers

Answer:

looks and cancer

Explanation:

you look like your parents and desises can be inhereted

The ___ is the short form that chemists use to identify an element

Answers

Answer:

Chemical Symbols

Explanation:

Im not positive on this one so dont rely on me lol

“Element symbol” is the answer

How do microorganisms influence the chemical characteristics of soil? Explain Please.

Answers

Answer:

Soil microbes are also important for the development of healthy soil structure. ... Soil microorganisms are both components and producers of soil organic carbon, a substance that locks carbon into the soil for long periods. Abundant soil organic carbon improves soil fertility and water-retaining capacity.

Explanation:

Soil microbes are also important for the development of healthy soil structure. ... Soil microorganisms are both components and producers of soil organic carbon, a substance that locks carbon into the soil for long periods. Abundant soil organic carbon improves soil fertility and water-retaining capacity.

A prospector pans for gold in a stream.

Which term best describes what is in his pan when he scoops up part of the stream bed?

mixture

pure substance

compound

element

Answers

Answer:

Mixture

Explanation:

When a prospector scoops up part of the stream bed, the pan contains stream sediments.

The term that best describes what is in his pan when he scoops up part of the stream bed is the mixture. Thus, the correct option for this question is A.

What is a Stream bed?

A stream bed may be defined as the strait extremity of a stream or river through which the physical confine of the normal water flow. It is a type of channel significantly occupied by a stream.

According to the context of this question, when a prospector scoops up part of the stream bed, the pan contains stream sediments, which implies that the mixture contains stream sediments or contamination.

Therefore, the mixture is the term that best describes what is in his pan when he scoops up part of the stream bed. Thus, the correct option for this question is A.

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Complete the sentences to identify the difference between a nonmetal atom and its anion.


In an anion, there are more *blank* than *blank*, giving the anion a *blank* charge.

In nonmetal atoms, the number of *blank* and *blank* are the same and there is a *blank* charge.


key bank:

- a positive

- no net

- electrons

- protons

- a negative

- neutrons

Answers

Answer:

more protons than neutrons and the number of electrons  and blank are blank

Explanation:

The complete sentences that distinguish the difference between a nonmetal atom and its anion are as follows:

In an anion, there are more electrons than protons, giving the anion a negative charge. In nonmetal atoms, the number of protons and neutrons are the same and there is a negative charge.

What are Non-metals?

Non-metals may be defined as the type of chemical element that lacks the characteristics of a metal. They do not show any metallic attributes. But in the periodic table, they range from colorless gases to shiny and high melting point solids.

In the whole periodic table, elements are classified into three parts. They are metals, non-metals, and metalloids. Each classification has its own attributes and characteristic properties.

The non-metals significantly gain electrons due to their stronger nuclear charge and become negatively charged anions.

Therefore, the complete sentences that distinguish the difference between a nonmetal atom and its anion are appropriately described.

To learn more about Non-metals, refer to the link:

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help please
Determine whether each action will increase or reduce soil erosion.
cattle grazing
contour plowing
deforestation
hydroseeding
planting vegetation
sort into the catigories
Increse soil erosion or reduse soil erosion

Answers

Increase soil erosion:
• Cattle grazing
• Deforestation
• planting vegetation

Reduce Soil Erosion:
• Contour Plowing
• hydro seeding
—————————————
Hope this helps!

Answer:a

Explanation:

Other Questions
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