When Aluminum foil is added to a solution of Copper (II) chloride (blue color solution), the following reaction occurs.

2 Al. +. 3 CuCl2. ----->. 3 Cu. +. 2 AlCl3
a
Aluminum is more reactive than copper.
b
Cannot determine the reactivity order.
c
Copper is more reactive than Aluminum.

Answer:

They would use 15.17 g KNO₃.

Explanation:

To solve this problem first we calculate the number of KNO₃ moles that would be in the solution, multiplying the concentration times the volume:

750 mL ⇒ 750 / 1000 = 0.750 L

Then we convert moles of KNO₃ to grams, using its molar mass:

Answer:

Take a look at this question:

https://brainly.in/question/24212862

Explanation:

Answer:

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Answer:B

Explanation:

Answer: Chemical engineers use chemistry and engineering to turn raw materials into usable products, such as medicine, petrochemicals, and plastics on a large-scale, industrial setting. They are also involved in waste management and research. They may be involved in designing and constructing plants as a project engineer.

Explanation:

Answer:

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Explanation:

Answer: In plastic, particles are very much tightly packed ,so food and drink kept in it do not get spoiled easily and its contact with environment gets cut off. So it is useful in transporting food and drink.

A. They have performed an experiment once and reported their findings.

Answer:

Hahah

Explanation:hahah

Answer: For many calculators, including the TI –83 and TI 83 Plus, the [EE] button is used to enter scientific notation. The [EE] button can be found in yellow above the comma key [,].

Answer:

130 Liters

Explanation:

if 1 mol is 22.4 L, then 5.8 mol is 130 L (129.92 but use sig figs)

Answer:

yes

Explanation:

very

Answer:

Yes a billion percent

Explanation:

Answer:

B

Explanation:

Answer:

c is the answer

Explanation:

One of the most common iron oxides is iron (III) oxide, known as rust. The chemical formula for rust is Fe2O3. Rust is formed when iron reacts with oxygen in moist air. The following chemical equation represents the reaction: 4Fe + 3O2 → 2Fe2O3.

The temperature : 332.75 K

Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure). At STP, Vm is 22.4 liters / mol.

volume of gas = 790 cm³ = 0.79 L

mol of gas at STP :

[tex]\tt \dfrac{0.79}{22.4}=0.035[/tex]

Use ideal gas :

[tex]\tt PV=nRT[/tex]

P=726 mmHg=0.955 atm

V= 1000 cm³ = 1 L

[tex]\tt T=\dfrac{PV}{nR}\\\\T=\dfrac{0.955\times 1}{0.035\times 0.082}\\\\T=332.75~K[/tex]

Answer:

the volume of the gas will be 1/8 of the original value

Explanation:

Answer:

when cell is exposed to radiation we get brain tumour or cancer.

Answer:

Radioactivity is typically a high-energy wave that passes through cells and causes damage to them. However, there are different types, and they have very different effects on our body.

First, we have alpha particles. They're the biggest of all the types of radiation particles, therefore lacking the energy and speed to penetrate your skin, and typically won't do much damage from outside your body. Inside you body, however, it will wreak havoc on your sensitive tissues, and cause severe damage to cells and DNA. These situations typically happen in unfortunate events where a person inhales or swallows an alpha-emitter.

Next, we have beta particles. These are typically smaller than alpha particles, and hence have more speed. They can penetrate skin and get into our body but are typically less damaging to our inside tissues due to their ionization being weaker than those of alpha particles. They can also typically be stopped by a layer of clothing or a thin sheet of aluminum, but be prepared for some damage if the beta particles get inside your body through inhaling beta-emitters, for example.

Coming up are gamma rays, which are packets of energy like photons that are similar to visible light but have much, much higher energy. These are typically known as the most dangerous of radioactivity, due to their energy that will absolutely rip apart and destroy DNA or cells, and their incredible penetrative energy that will take at least a few meters of dense materials like lead or even concrete to stop.

Finally, we have X-rays. Similar to gamma rays, they are also little photons that act like visible light but have a lower energy than gamma rays, hence having less penetrative power. They are most known for their uses in medicine in X-ray scans to see the insides of a patient, or for their uses in CT scans to diagnose patients.

Hope this helped!

Answer:

white light is made up of all colors of the rainbow

Explanation:

The white light of the sun is made up of all the colors of the rainbow. Therefore, option (4) is correct.

A rainbow can be described as a meteorological phenomenon that is caused by refraction, reflection, and dispersion of light in water results in a spectrum of light appear in the sky. It occurs in the form of a multicolored circular arc in the sky directly opposite the Sun.

Rainbows can be full circles but we normally see only an arc of illuminated droplets above the ground. In a primary rainbow, the arc indicates red on the outer and violet on the inner side. When the light is refracted when entering a water droplet, then reflected inside the back of the droplet and refracted again.

When the light enters a water droplet, it slows down and bends as it goes from air to denser water. The light reflects back the inside of the droplet and when light exits the droplet, it creates a rainbow.

Learn more about rainbow formation, here:

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Answer:

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Explanation:

Alkane : CnH2n+2

Alkene : CnH2n

Alkyne : CnH2n-2

Therefore C5H10 is an Alkene and C14H30 is an Alkane.

Answer: In a chemical reaction substances elements and compounds called reactants are changed into other substances compounds and elements called products.You can't change one element into another in a chemical reaction that happens in nuclear reactions.

Explanation:

Answer:

The black snakes will survive and reproduce while the orange snakes die out.

Explanation:

The orange snakes will be easier to see by their prey and predators, and therefore will die out while the black snakes thrive because of their camouflage.

Answer:

the black snakes will survive and reproduce, therefore, passing their traits to their offspring, while few orange snakes will remain in the population.  

Explanation:

Answer:

How many water molecules would be produced in making a polypeptide that is 72 amino acids long by dehydration reactions? 71; one less than the number

Explanation:

Answer:

See explanation

Explanation:

We must take into account the order of stability of free radicals. The order of stability of free radicals is;

Tertiary>secondary>primary> methyl.

As a result of this, structure 1 involving a tertiary radical leads to the more abundant product as shown.

C They together help recycle important elements in nature.

This is because photosynthesis removes carbon dioxide and creates oxygen while cellular respiration does the opposite. This results in no increase or decrease in any of the elements, and therefore means there needs to be a cycle.

Answer:

Here is a clue

Explanation:

A convenient ion exchange separation particularly designed for the separation of iron and vanadium or mangenese from cobalt has been developed for the determination of iron, cobalt and manganese or vanadium in soft magnetic alloys. After an anion exchange separation of their chloride complexes these elements are determined by a back titration of an excess of EDTA with a standard copper solution using calcein as an indicator under ultraviolet light.

Answer:

I THINK it's vanadium but I'm not 100% sure

Explanation:

Answer:

T₂ = 150 K

Explanation:

Given data:

Initial volume of gas = 804 mL

Initial temperature = 27°C (27+273=300 K)

Final temperature = ?

Final volume = 402 mL

Solution:

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

T₂ = V₂T₁/V₁  

T₂ = 402 mL × 300 K / 804 mL

T₂ = 120,600 mL.K / 804 mL

T₂ = 150 K

Answer:

seven litres i

i.e three litres plus four litres

Answer: 60 degrees Celsius

Explanation:

Answer:

Functional diversity is a wide range of individuals who have unique selves in one community.

Answer:

Zinc (30)= [Ar]3d104s2 (electron configuration of Zinc)

Explanation:

Zinc:

Atomic Mass= 65.39 atomic mass units (amu)

Number of Protons= 30

Number of Neutrons= 35

Number of Electrons= 30

I hope this is what you were asking for!