What is the name of the atom in a ligand that is bound directly to the metal atom? donor atom chelating atom coordinator acceptor atom chelating agent

Answer:

Science...Only the form changes.Kinetic energy changes.

Explanation:

SCIENCE

Answer:

"Something chemically new forms" is the incorrrect statement

Explanation:

When a substance changes its state, it retains its mass even though its form and kinetic energy changes. It is simply moving between states, that is: loosing energy or gaining it. its chemical composition does not change.

Have a good day dude

Answer:

It is in the same phase as the reactants.

Explanation:

i took the test

If more acid was added to dissolve the excess magnesium, the calculated molar mass of the unknown copper compound would go down. This is because the additional acid would react with the magnesium to form magnesium ions.

That would dilute the concentration of copper ions in solution. As a result, less copper would precipitate out, and the calculated molar mass would be lower than the actual molar mass of the copper compound. The following equation shows the reaction between magnesium and hydrochloric acid:

Mg(s) + 2HCl(aq) → MgCl2(aq) + H2(g)

The reaction produces magnesium chloride and hydrogen gas. The magnesium chloride will dissolve in the solution, while the hydrogen gas will escape into the air. This will reduce the concentration of copper ions in solution, and less copper will precipitate out.

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Answer:

Ionization energy increases as you go across a period, and increases as you move up a group. So, elements with the smallest ionization energy would be at the bottom left corner of the periodic table. Examples of elements with small ionization energy: Francium (Fr), Cesium (Cs), Radium (Ra).

I would argue against Tony's claim that the temperature of a solid cannot be measured, just because solids do not have a lot of thermal expansion.

Thermal expansion is the tendency of materials to change in size, shape, or volume in response to changes in temperature.

There are several ways to measure the temperature of solids. One common method is to use a thermometer, which can be inserted into the solid to measure its temperature. Another method is to use an infrared thermometer, which measures the temperature of a solid by detecting the amount of infrared radiation it emits.

Second, while it is true that solids have a lower coefficient of thermal expansion than liquids or gases, they still expand and contract with changes in temperature. This is evident in Valdez's example of the wooden door, which becomes difficult to open in the summer when the temperature is higher, and easier to open in the winter when the temperature is lower. This change in the size of the door is due to thermal expansion and contraction of the wood.

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Explanation:

4Al(s) + 3O2(g) → 2Al2O3(s) A mixture of 82.49 g of aluminum (м = 26.98 g/mol) and 117.65 g of oxygen (м = 32.00 g/mol) react according to this equation.

Please note that all of these elements are non-metals: h, b, r, o, i.As a result, it will be a molecular molecule, and this first component just so happens being an acid.

Ionic bonding will typically be present in compounds where a metal is bound to either a quasi or a semi-metal.

Because the electronegativity of the bromine atom is significantly higher than that of the hydrogen atom, electrons are (somewhat) more attracted to it.

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A reaction mechanism for the destruction of ozone, O₃(g), in the overall reaction, NO(g) is best described as the catalyst.

The reaction for the destruction of the ozone  is given as follows:

NO  +   O₃    ---->   NO₂   +  O₂       SLOW STEP

NO₂   +  O     ---->  NO   +   O₂        FAST STEP

the overall reaction is expressed as follows :

O₃   +   O   ----->  2O₂

In the process of the destruction of ozone , the NO acts as a catalyst. A catalyst are the substance which used to reduce the activation energy of the chemical reaction. catalysis increase the rate of the chemical reaction.

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The majority of the lead(II) iodide in the solution precipitates out as a yellow solid flag.

Define lead iodide?

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The PH value of a saturated solution of phenobarbital is,\(p^H=4.88 \approx P^H \times 4.9$\)

A saturated solution is a chemical solution containing the maximum concentration of a solute dissolved in the solvent. ​The additional solute will not dissolve in a saturated solution.

The amount of solute that can be dissolved in a solvent to form a saturated solution depends on a variety of factors. The most important factors are:

For saturated solution

W= \(1g\), V=\(1000ml\), \(m_{w}\) = \(232.2g\)

Now Molarity = \(\frac{WX1000}{m_{w} V}\) = \(\frac{1X1000}{(23.2)(1000)}\)

Molarity = \(0.0043m\)

Given \(P^{ka}\)=\(7.4\)

Therefore, \(ka =\) antilog \((-7.4)=3.98X10^{-8}\)

\($\left[\mathrm{H}_3 \mathrm{O}^{+}\right]=\sqrt{\mathrm{KaXc}} =\sqrt{3.98 \times 10^{-8} \times 0.0043}=1.30 \times 10^{-5}$ \\Now, $\mathrm{pH}^H=-\log \left(\mathrm{H}_3 \mathrm{O}^{+}\right]=-\log \left(1.30 \times 10^{-\mathrm{E}}\right)=4.88$.\\$\therefore p^H=4.88 \approx P^H \times 4.9$\)

Therefore, the PH value of a saturated solution of phenobarbital is,\(p^H=4.88 \approx P^H \times 4.9$\)

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Answer:

s= 0.5 at^2

0.5 x 9.81 x 3^2 = 44m

Explanation:

OB.

44 meters

Answer:

2.7*10^23

Explanation:

first work out the moles

So do 36g / 80 (80 is bromine's relative Atomic Mass number)

You have 0.45 M

Then, do 0.45 * 6.02*10^23

You get 2.7*10^23, which is your answer

Answer:

The answer is lemonade.

Weaker acids are those which tend to have a higher pH from 4 to at least 6 stronger acids have low pH from 2 and below that's from 2 to 0.

Hope this helps

Hope

Answer:

B :)

Explanation:

Trachea is were oxygen is entered :D (5 stars?)

Answer:

Explanation:

Isotope notation is of the form

A

Z

X

where  

Z

is the atomic number (number of protons),  

A

is the mass number (sum of protons and neutrons), and   X   is the element.

In Carbon- 14 ,   14  is the mass number (sum of protons and neutrons). This is our  A .

Carbon has the atomic symbol   C , and it has  6 protons. This is the atomic number, or  A . Thus, the isotope notation for Carbon- 14  is  14  6  C

Hope this helps!

Explanation:

Answer:

Covalent bonds are formed by the sharing of electrons between two non-metallic atoms. These bonds are typically stronger and more stable than ionic bonds and are found in compounds such as water, hydrogen, and carbon dioxide. Covalent bonds differ from ionic bonds in that they do not involve the transfer of electrons from one atom to another.

Explanation:

We are given –

__________________________________________

Molar Mass of \(\bf K_2SO_4 \) –

\(\qquad\) \(\twoheadrightarrow\bf 39.09 \times 2 + 32 + (16 \times 4)\)

\(\qquad\) \(\twoheadrightarrow\bf 174.2\)

Using formula –

\(\qquad\) \(\purple{\twoheadrightarrow\bf Molarity _{(Solution)} = \dfrac{ W\times 1000}{MV}}\)

\(\qquad\) \(\twoheadrightarrow\bf Molarity _{(Solution)} = \dfrac{ 9.51 \times 1000}{174.2\times 750}\)

\(\qquad\) \(\twoheadrightarrow\bf Molarity _{(Solution)} = \dfrac{9510}{174.2 \times 750}\)

\(\qquad\) \(\purple{\twoheadrightarrow\bf Molarity _{(Solution)} = 0.073M} \)

___________________________________________

The number of formula units in 3.52 moles of NaF is 2.119 × 10²⁴ formula units.

Formula unit refers to the empirical formula of an ionic compound (that does not possess individual molecules) for use in stoichiometric calculations.

The formula unit of a substance can be calculated by multiplying the number of moles in the substance by Avogadro's number.

According to this question, there are 3.52 moles of NaF in a substance. The formula unit can be calculated as follows:

formula unit of NaF = 3.52 × 6.02 × 10²³

Formula unit = 2.119 × 10²⁴ formula units.

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Answer:

d . al of these

Explanation:

all of that are used when you in spaceship

Answer:  reverse osmosis.

Explanation:

you are welocome please choose me for brainlist

Ideal gas law is used to solve this. 62 L  is the volume of 2.3 mol Chlorine  gas at 290 K and 0.89 atm.

Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space filled within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity. Finding an object's volume can help us calculate the quantity needed to fill it, such as the volume of water required to refill a bottle, aquarium, or water tank.

PV = nRT

n = 2.3 mol, T = 290 K and P = 0.89 atm.

V = n RT/ P

V = 2.3 mol × 0.082 × 290 /0.89

V = 62 L

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\(\\ \star\sf\longmapsto Density=\dfrac{Mass}{Volume}\)

\(\\ \star\sf\longmapsto Density=\dfrac{25}{5}\)

\(\\ \star\sf\longmapsto Density=5g/mL\)

Answer:

0.000001 joule

Explanation:

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The correct shape that illustrates an SF6 molecule is octahedral.

An SF6 molecule consists of six fluorine atoms surrounding a central sulfur atom. The sulfur atom has six valence electrons, and each fluorine atom has seven valence electrons.

To complete the octet of each fluorine atom, the sulfur atom shares one of its electrons with each fluorine atom, resulting in six S-F covalent bonds. The electron pair geometry of the SF6 molecule is octahedral because the sulfur atom has six bonding pairs and no lone pairs.

The molecular geometry of the SF6 molecule is also octahedral because the six fluorine atoms are evenly distributed around the sulfur atom. This results in a symmetrical shape that resembles two pyramids connected at their bases.

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Answer:

No. Two atoms of the same chemical element are typically not identical. Since the states of the electrons in an atom are what determine the nature of the chemical bonding that the atom experiences, two atoms of the same element can react differently if they are in different states.

Answer: No

Explanation: Two atoms of the same chemical element are typically not identical. First of all, there is a range of possible states that the electrons of an atom can occupy. Two atoms of the same element can be different if their electrons are in different states.

Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

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The reaction that will shift to the right in response to a decrease in volume is:

2HI (g) ⇄ H₂ (g) + I₂ (g)

When the volume of the system is decreased, the pressure increases. According to Le Chatelier's principle, the system will shift in the direction that reduces the number of moles of gas to counteract the increase in pressure.

In this reaction, there are two moles of gas on the left side (2HI) and only one mole of gas each on the right side (H₂ and I₂). Therefore, by decreasing the volume and increasing the pressure, the reaction will shift to the right, favoring the formation of more H₂ and I₂ and reducing the number of moles of gas and equilibrium.

The reaction that will shift to the right in response to a decrease in volume is:

2HI (g) ⇄ H₂ (g) + I₂ (g)

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Free energy change for transporting Ca2+ ions is calculated as follows:∆G = RT ln ([Ca2+]outside/[Ca2+]inside)∆G = 8.315 J/mol.K x 310 K x ln (25 mM/145 mM) = -15,400 J/mol.

Here, ∆G is negative, which implies that Ca2+ ions transport spontaneously from the cell to blood. This is because the free energy of the system decreases when Ca2+ ions move from high concentration to low concentration. Therefore, transporting Ca2+ ions is energetically favorable.

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Answer:

B.Magnesium(Mg)

Explanation:

maybe