Which ion has a smaller size,1)N---,O--,F-and Ne 2) Cl-,Br- and I ?Why
Help me to solve it!

The force that the tri ceps muscle exerts on the fore arm when you lift a 17g  with your hand is 1323 N

Data;

The sum of moment of a force about a point is equal to zero.

∑m = 0

\(x*5 - 17 * 9.8*35 -5 * 9.8 * 16 = 0\\5x - 6615 = 0\\x = 1323N\)

The force that the triceps muscle exerts on the forearm when you lift a 17g with your hand. Assuming the is I = 0.35m from the elbow join and the  is d = 0.05m from the joint is 1323N

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Answer:1) 9,5 грамм

2) 1,8 л вроде

Explanation:

1) H2+F2=2HF

n(H2)=1 моль. n(F2)=1моль

M(H2)=1г/моль. М(F2)= 19г/моль

0,5:1=х:19.

2) H2S+2NaOH=2H2O+Na2S

M(H2S)= 34г/моль. М(NaOH) =40г/моль

5,6:80=х:34. m(H2S)= 2,38г.

n(H2S)= 2,38:34≈0,08

V=Vm•n= 22,4 • 0,08=1,8

The compound is Glucose.

C: 40 g divided by 12 g per mol equals 3.333 mol

H: 6.72 g/mol (1 g) = 6.72 mol

O: 53.28 g/mol (16 g) = 3.33 mol

Subtract the lesser amount of moles.

C: 3.333 / 3.33 = 1.00

H: 6.72 / 3.33 = 2.02 ≈ 2

O: 3.33/3.33 = 1.00

Statistical method

The empirical formula's molar mass is 12 g/mol + 2*1 g/mol + 16 g/mol = 30 g/,ol.

180 g/mol / 30 g/mol = 6 times the mass of the empirical formula is contained in the molar mass.

The empirical formula of compound is six times the molecular formula.

=>\(C_{6} H_{12} O_{6}\)

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Answer:

sorry

Explanation:.

Answer:

84%

Explanation:

Answer:

c

Explanation:

Answer:

D.) pure substance

Explanation:

edge 2021

Answer:

Rubidium (Rb).

Explanation:

From the question given above, the following data were obtained:

Electronic configuration => 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹

Name of element =?

To know the name of the element with the above electronic configuration, we shall determine the atomic number of the element. This can be obtained as follow:

Number of electrons = 2 + 2 + 6 + 2 + 6 + 2 + 10 + 6 + 1

Number of electrons = 37

Next, we shall determine the number of protons. This can be obtained as follow:

From the question given above, the element has no charge. Hence the element contains equal numbers of protons and electrons.

Number of electrons = 37

Number of protons = number of electrons = 37

Next, we shall determine the atomic number. This can be obtained as follow:

The atomic number of an element is simply defined as the number of protons present in the atom of the element. Thus,

Atomic number = proton number

Proton is = 37

Therefore,

Atomic number = 37

Finally, we shall determine the name of the element by comparing the atomic number of those in the periodic table.

Thus, the element with the above electronic configuration is Rubidium (Rb) since no two elements have the same atomic number

Considering the definition of chemical reaction, the process in which atoms rearrange to form new substances is chemical reaction.

A chemical reaction is the way in which one substance reacts with another. So, chemical reactions are thermodynamic processes of transformation of matter in which reactants or reactants intervene, which change significantly in the process, and can consume or release energy to generate two or more substances called products.

In a chemical reaction, chemical bonds between atoms are broken and new bonds are formed. In other words, for a specific product to be formed from a reactant, it is necessary to break bonds that hold them together and reorganize structures, forming new bonds and forming other substances.

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Answer:

\(\huge \fbox \pink {A}\huge \fbox \green {n}\huge \fbox \blue {s}\huge \fbox \red {w}\huge \fbox \purple {e}\huge \fbox \orange {r}\)

A. Skin

Explanation:

Skin unlike teeth, bones & shells is fragile & get decomposed easily under the soil.

Answer:

um a I think because when you look at dinosaur you don't see their skin anymore just like the bones and teeth

Answer:

218.09g

Explanation:

the formula for density is mass/volume

you have volume so rlly what you have is 19.3g/cm3=m/11.3cm3

so mass equals density x volume

and 19.3 x 11.3 = 218.09

The statement "Hydrogen bonds are very strong bonds that hold together water molecules" is false. Hydrogen bonds are relatively weaker compared to covalent or ionic bonds.

Hydrogen bonds are a type of intermolecular force that occurs when a hydrogen atom is bonded to a highly electronegative atom (such as oxygen, nitrogen, or fluorine) and interacts with another electronegative atom nearby.

In the case of water (H2O), hydrogen bonds form between the hydrogen atoms of one water molecule and the oxygen atom of another water molecule.

While hydrogen bonds are important for various biological and chemical processes, they are weaker than covalent or ionic bonds. Covalent bonds involve the sharing of electrons between atoms, and ionic bonds involve the transfer of electrons from one atom to another. These types of bonds are much stronger than hydrogen bonds.

The strength of hydrogen bonds is due to the large difference in electronegativity between the hydrogen and the electronegative atom involved. Although hydrogen bonds are relatively weaker compared to other types of chemical bonds, they play a crucial role in many biological phenomena and the unique properties of water.

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Answer:

B

Explanation:

Most of these are opinions. the reason that it is not d is because it is not something that can be scientifically proven. b can be proven by facts. hope this helps!

Process is called Magnetism.

Explanation:

Iron is magnetic, the iron in the mixture will be attracted to the magnet ,leaving the remaining sand in the bowl.

Answer:

Here, I hope this helps

Explanation:

Answer:

       ┃

        V

Explanation:

A polar molecule is a chemical species in which the distribution of electrons between the covalently bonded atoms is not even. Each atom has a certain electro-negativity. When bonded to another atom, the atom with the higher electro-negativity will tend to attract more electrons.

Answer:

I'm pretty sure you'll be fine

Explanation:

I've swallowed more than a small amount and I'm ok sort of

Answer:

acute propafol intoxication

Explanation:

acute propafol intoxication

The option A is correct , Firstly electrical energy is converted into mechanical energy via chemical energy.

The force generated by an engine powered by electricity is what propels an electric vehicle forward. These automobiles feature an original and useful design in addition to being environmentally friendly.

What is the operation of electric cars is that the electrical energy is supplied to the engine, which uses electromagnetic interactions to convert it into mechanical energy.

Energy transformations is the process of a type of energy form transforming into a new form of energy

When they enter a magnetic field, the conductive material inside them moves, and the electric current then passes through it.

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The molarity of a solution made by dissolving 45.6 g glucose, C₆H₁₂O₆, in enough water to make 350.0 ml of solution is 0.722 M.

given that :

volume = 350 mL = 0.350 L

mass of glucose = 45.6 g

molar mass of glucose = 180.15 g/mol

the number of moles of glucose = mass / molar mass

                                                      = 45.6 / 180.15

                                                      = 0.253 mol

the molarity expression is given as follows :

Molarity = moles / volumes in L

              = 0.253 / 0.350

              = 0.722 M                  

Thus, the molarity of the solution to make 350.0 mL of solution is 0.722 M.          

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Answer: 3.156 * 10^7

Explanation: I do not really understand your question. You answered it yourself!

Scientific notation shortens large numbers. The number right after the decimal point can only be between 1 and 9, which you did correctly. When converting to scientific notation, the exponent of ten is based on how many places you moved the decimal and the direction you moved it (left, positive; right, negative). In this case, the exponent of ten is a positive seven.

You did everything correctly :) Good job!

The chemist can conclude that the liquid is gaining heat or experiencing an increase in thermal energy.

Thermal energy in chemistry is the energy transferred from one object to another due to a temperature difference. This type of energy is also known as heat energy and is associated with the motion of molecules within an object. At the molecular level, thermal energy can be seen as the kinetic energy of the molecules which are constantly in motion. When two objects with different temperatures come into contact, heat energy is transferred from the object with the higher temperature to the object with the lower temperature. This process continues until both objects reach thermal equilibrium, meaning that the temperatures of both objects are equal. Thermal energy can also be created by the friction between two objects, or by the combustion of a fuel.

From this observation, the chemist can conclude that the liquid in the vat is undergoing a chemical reaction. To determine the exact nature of the reaction, further analysis would be needed. This could include measuring the rate of temperature increase, the products of the reaction, and the reaction enthalpy.

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Answer:

Your Answer would be Option B

Answer:

B

Explanation:

The Answer is B-Transfer of heat through direct physical contact

The ways to identify the components necessary for a combustion reaction include:

This is referred to as burning and involves high-temperature exothermic redox chemical reaction.

This type of reaction involves the use of a gas such as oxygen which supports it and other flammable substances.

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Answer:

HCl is an acid, and Cl– is its conjugate base.

Explanation:

HCl is an acid, and \(Cl^-\) is its conjugate base.

The reaction that we are to consider is; HCl + H2O → \(Cl^-\)+ \(H3O^+\).

According to the Brownstead - Lowry definition of an acid, an acid is a substance that donates a proton while a base is a substance that accepts a proton.

The conjugate base of a substance is obtained by the loss of a proton from the substance.

Now, if you look at HCl and \(Cl^-\), you will notice that \(Cl^-\) is obtained from HCl by loss of a proton.

Therefore, HCl is an acid, and \(Cl^-\) is its conjugate base.

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Answer:

When ammonium chloride dissolves in water, the absorption of heat occurs shows the reaction is an endothermic reaction. So, in the endothermic reaction, when the temperature increases, the value of the equilibrium constant also increases.

Explanation:

There are several methods for producing nitric acid from nitrogen, but two common methods are:

1. Ostwald process:

4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)

2 NO(g) + O2(g) → 2 NO2(g)

3 NO2(g) + H2O(l) → HNO3(aq) + HNO2(aq)

Overall equation:

4 NH3(g) + 3 O2(g) + H2O(l) → 2 HNO3(aq) + 2 NO(g)

2. Birkeland-Eyde process:

N2(g) + 3 H2(g) → 2 NH3(g)

2 NH3(g) + 3 O2(g) → 2 NO(g) + 3 H2O(g)

2 NO(g) + O2(g) → 2 NO2(g)

3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g)

Overall equation:

N2(g) + 3 O2(g) + 3 H2(g) → 2 HNO3(aq)

Answer:

B

Explanation:its the best answer

The most diverse offspring is produced when bees bringing pollen from the flower of one plant to the flower of another plant where, the new flower made will show a characteristic of both plants?

Pollination is the process of transferring pollen grains from the anther of the flower to the female stigma portion. This is a mechanism to create offsprings of the plants.

Pollination can be occurred through various agents such as insects, wind, water etc. Some plants contains both male and female flower within it and those are self pollinating.

Bees and butterflies are the main pollinating agents for plants. When they bring the pollen grains from one plant to another plant's flower the resulting offspring will have diverse properties which are mix of each plants.

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Answer:

The answer is Sodium chloride.

Na is sodium and Cl is chlorine.