HELP !!! WITH CHEMISTRY QUESTION

can u pls show a picture of it?

Answer:

Electromagnetic waves are created by a charged particle that generates an electric field. The electric field creates a magnetic field. As the charged particle moves, the electric field and magnetic field keep changing, which causes the wave to move

Answer:

Electromagnetic waves are formed by charged particles which create an electric field. The electric field generates a magnetic field. As the particle moves, the electric field changes, which causes the magnetic field to change.

Explanation:

Edge, 2022.

5

 mL acetic acid

95

mL water

Explanation:

Since

5

%

of the vinegar, by volume, is acetic acid, and we have

100

mL of vinegar, we have

5

mL of vinegar.

Similarly, we have

100

%

−

5

%

=

95

%

being water, so we have

95

mL of water.

Answer:

1.806 x 10^24 atoms total

Explanation:

Answer:

3, 2, 2,3

..........................

Answer:

what are the options?

Explanation:

In an ecosystem the urban heat island effect is caused by construction of tall buildings and concrete roads.

Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.

Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.

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Answer:

3 M

Explanation:

Molarity equation: M = n/v

n = moles of solute

v = liters of solution

9 moles of NaCl / 3 L

9/3 = 3 M

Answer:

[tex]m=8.28gCl_2[/tex]

Explanation:

Hello there!  

In this case, according to the given information, it possible for us to realize that this problem is solved via the ideal gas equation:

[tex]PV=nRT[/tex]

By which we solve for the moles of chlorine gas as shown below:

[tex]n=\frac{PV}{RT}[/tex]

Next, we plug in the given pressure (in atm), the volume and standard pressure (273.15K) to obtain:

[tex]n=\frac{610/760atm*3.26L}{0.08206\frac{atm*L}{mol*K}*273.15K}\\\\n=0.117molCl_2[/tex]

Then, since the molar mass of chlorine gas (Cl2) is 70.9 g/mol, the mass of this gas turns out to be:

[tex]m=0.117molCl_2*\frac{70.9gCl_2}{1molCl_2} \\\\m=8.28gCl_2[/tex]

Regards!

Answer:

i dk how ur school works, but you'll most likely have to take that science again to get the credits u need to graduate

Explanation:

Answer:

1257.03 grams

Explanation:

mass=mole*molar mass

mass=7.4*169.87= 1257.03

Answer:

b.

Explanation: brainliest

Answer:

54 moles

Explanation:

The ratio of AIF3 to CaF2 is, as seen in the equation, 2:3. This means you multiply 36 moles by 3, and then divide it by 2. This equals 54 moles of CaF2.

Answer:

Filtration,Sedimentation and distillation

Explanation:

These 3 are physical processes which are commonly used in nature while in chemical processes,Chlorination is done to eliminate bacteria and other germs present

Happy 2 have helped in some way

Answer:

Physical or Mechanical weathering.

Explanation:

Answer:

Inverse relationship between number of covalent bonds and bond length.

Explanation:

There is inverse relationship between number of covalent bonds and bond length which means that if one increases the decreases or the one decreases the increases. When the number of covalent bonds between two atoms increases, the bond length decreases because there are more number of electrons present between the two nuclei, the two nuclei can get closer to each other until both nuclei experience their repulsive force of attraction. In bond of H2S has lower electronegativity value as compared to H2O so the bond length decreases due to attraction of shared pair of electrons by both nuclei.

Answer:

Find the explanation below.

Explanation:

Sentence A: In sentence A, the bolded words create a positive undertone to the entire meaning of the text. Words such as unimaginable accomplishment, stunning, and fascinated produce a pleasing and heartening mood. They make it clearer to the reader that this action by the scientists elicited a favorable response from the viewers.

Sentence B: In sentence B, there is a negative undertone to the text. The use of descriptors such as shocking, recklessly, alarmed, tells the reader of the unfavorable response the action of the scientists produced in the viewers. A gloomy mood is thus created.

Answer:

where the main questions of these assmesnt

Explanation:

Answer:

860. g CuCl₂

General Formulas and Concepts:

Atomic Structure

Stoichiometry

Explanation:

Step 1: Define

[Given] 6.40 mol CuCl₂

[Solve] g CuCl₂

Step 2: Identify Conversions

[PT] Molar Mass of Cu: 63.55 g/mol

[PT] Molar Mass of Cl: 35.45 g/mol

Molar Mass of CuCl₂: 63.55 + 2(35.45) = 134.45 g/mol

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

860.48 g CuCl₂ ≈ 860. g CuCl₂

Answer:

The unknown amount of potassium chloride is 13.6 grams.            

Explanation:

The reaction of 14 grams of KNO₃ with KCl produces a total mass of 27.6 grams of the products.

The law of conservation of mass tells us that the total mass of the reactants must be the same that the total mass of the products. So, we can find the mass of KCl as follows:

[tex] m_{r} = m_{p} [/tex]

Where r is for reactants and p is for products

[tex] m_{KNO_{3}} + m_{KCl} = m_{p} [/tex]

[tex] 14 g + m_{KCl} = 27.6 g [/tex]

[tex] m_{KCl} = 27.6 g - 14 g = 13.6 g [/tex]

Therefore, the unknown amount of potassium chloride is 13.6 grams.           

I hope it helps you!

Answer:

is this for rp

Explanation:

Answer:

d) catión

Explanation:

Two copper electrodes dipped in copper sulphate solution are connected to the end of the battery marked with a is a cation. Hence, option D is correct.

An electrode is a conductor of electricity that can carry electric current into non-metals and other poor conductors of electricity.

The process is called electrolysis, and the two wires or plates dipping into the electrolyte are called electrodes.

The electrode which is connected to the positive terminal of the cell or battery is called the anode.

The electrode which is connected to the negative terminal of the battery is called the cathode.

Hence, option D is correct.

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Explanation:

The symbol of the eyes of syambhunath stupa refers to the eyes of gautam buddha also known as the eyes of wisdom. These eyes are prevalent throughout the country and have become a symbol of peace.

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I believe the ans is (2) pH = 7.

Explanation:

At the equivalence point, the salt of strong acid and strong base is completely hydrolyzed which gives a neutral solution with pH 7 as H+ ion concentration is equal to OH- ion concentration.

The greenhouse effect refers to global warming as a consequence of the accumulation of greenhouse gases.

Greenhouse gases are different types of gaseous elements that trap solar radiation on the Earth's surface.

The most important greenhouse gases include, among others, methane and carbon dioxide (CO2).

In conclusion, the greenhouse effect refers to global warming as a consequence of the accumulation of greenhouse gases.

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Answer:

c) evaporating

d) has no salt in it

Explanation:

no problem anytime. just try to understand the concept and it will definitely help if you read the question more than once.

the change of state that is happening the surface of the sea water is evaporating. This is because it allows from liquid to vapour/ gas based on the diagram

the water in the test tube is different from sea water because it is pure meaning no salt. It's evident based on figure 2 because sea water is full of solutions and mixtures.

Answer:

true

Explanation: