which one of the following compounds is likely to be colorless? select all that apply and briefly explain your reasoning. a. [zn(oh2)6]2 b. [cu(oh2)6]2 c. [fe(oh2)6]2

Answer:

15) the mass of an electron is really small and uncountable while that of proton is bigger and countable

Answer:

C. keep the temperature constant so the collected  gas will not expand

Explanation:

A water bath is an instrument in the laboratory used for controlled temperature experiment. It is used to maintain a constant temperature of volume of samples of water, air or chemicals. It consist of water being heated at a regulated and required temperature. Where the volume of the sample is placed in the water bath during an experiment so as to avoid unnecessary expansion of the sample.

In the question given, the purpose of putting the flask in a water bath during the experiment is to ensure that the content of the flask is at a constant temperature and avoid unnecessary expansion. Thus the correct option is C.

Hydrochloric acid is a different kind of acid than chloric acid.

Ternary Acids (Oxy-acids) Ternary acids are also referred to as “Oxy-acids. Include hydrogen and oxygen and yet another (normally) nonmetallic detail. Those acids comprise each hydrogen and oxygen but their names make no reference to either hydrogen or oxygen.

A ternary acid is an acid that has the elements hydrogen and oxygen together with every other element, frequently a nonmetal. Or, they comprise hydrogen in addition to a polyatomic ion. An -ate complicated ion is named an -ic acid. as an example, HClO3(aq) consists of the chlorate ion and is known as chloric acid.

A binary acid is an acidic compound that always has hydrogen boned to every other chemical element, most of the time a nonmetal. Ternary acids are acidic compounds that comprise hydrogen and oxygen blended with some other detail. Binary acid has one style of a chemical element (hydrogen bonded to a nonmetal) .

Learn more about the ternary acid here https://brainly.com/question/13386259

#SPJ4

If the given emf (1.5 volts) is greater than the emf you observed in your experiment, then the motor with 1.5 volts will move faster.

The speed of the motor depends on the strength of the induced emf in the coil of the electric motor.

emf = NdФ/dt

where;

F = BIL = qvB

where;

As the induced current in the coil of the motor increases, the speed of the motor will increase.

Thus, if the given emf (1.5 volts) is greater than the emf you observed in your experiment, then the motor with 1.5 volts will move faster.

Learn more about induced emf here: https://brainly.com/question/13744192

#SPJ1

Answer:

The motor will spin slower

Explanation:

The other three motors have either 9, 12, or 15 loops of wire. The more loops, the faster it goes.

EDTA (ethylenediaminetetraacetic acid) is commonly used to determine the hardness of water due to its ability to form complexes with metal ions, particularly calcium and magnesium ions.

Water hardness refers to the concentration of calcium and magnesium ions present in water. These ions can cause scaling, reduce the effectiveness of soaps, and have other negative effects. EDTA acts as a chelating agent, meaning it can bind to metal ions and form stable complexes.

In the process of determining water hardness, a known amount of EDTA solution is added to a water sample. The EDTA molecules form complexes with the calcium and magnesium ions present in the water.

The endpoint of the titration is reached when all the metal ions are complexed by the EDTA, resulting in a color change or an indicator reaching a specific endpoint.

To know more about hardness of water refer:

https://brainly.com/question/28178305

#SPJ11

Answer: electrostatic force

Explanation:

Oppositely charged particles attract each other. This attractive force is often referred to as an electrostatic force. An ionic bond is the electrostatic force that holds ions together in an ionic compound

Answer:

that's a little bit difficult question

Explanation:

sorry !

Answer:

Option (2)

Explanation:

Since the amount of each sample is the same, we are looking for the metal with the greatest density, which is copper.

The temperature would be 7°C

Charles's Law, also known as the Law of Volumes, is a gas law that describes the relationship between the volume and temperature of a gas at constant pressure. It states that, for a fixed amount of gas at a constant pressure, the volume of the gas is directly proportional to its absolute temperature.

We know that;

V1/T1 = V2/T2

V1T2 = V2T1

T2 = V2T1/V1

T2 = 15 * 373/20

= 280 K or 7°C

Learn more about temperature:https://brainly.com/question/11464844

#SPJ1

Answer:

I believe the answer is True

Explanation:

I could be wrong but in order for Chlorine 35 and Chlorine 37 to be different would they have to have a different amount of electrons? I am sorry if this is wrong. I took Chemistry a few years ago.

Answer:

The number after the name 'chlorine' is called the mass number. The mass number is a tally of the number of protons and the number of neutrons in an atom's nucleus. Since all atoms of chlorine contain 17 protons, chlorine-35 and chlorine-37 differ in the number of neutrons each one has.

Explanation:

So its true lol

:)

The spectrum of the first compound will have only one signal, but the spectrum of the second compound will have two signals.

A compound is a substance formed by combining two or more different chemical elements in such a way that the atoms of the individual elements are linked together by chemical bonds that are difficult to break in chemistry.

Hence it is right to state that the spectrum of the first compound will have only one signal, but the spectrum of the second compound will have two signals.

Learn more about compounds in chemistry at:
https://brainly.com/question/26556885

#SPJ1

The student's claim of 4.64 × 10^24 molecules is incorrect, and the correct number of molecules of ammonium acetate used in the reaction is 6.022 × 10^22 molecules.

The mistake the student made is assuming that the molar mass of ammonium acetate directly corresponds to the number of molecules. However, the molar mass of a substance represents the mass of one mole of that substance, not the number of molecules.

To determine the correct number of molecules of ammonium acetate used in the reaction, we need to use Avogadro's number, which relates the number of particles (atoms, molecules, etc.) in one mole of a substance.

Avogadro's number is approximately 6.022 × 10^23 particles/mol. Given that the student used 0.100 mol of ammonium acetate, we can calculate the correct number of molecules by multiplying the number of moles by Avogadro's number:

Number of molecules = (0.100 mol) × (6.022 × 10^23 molecules/mol)

Performing the calculation, we find that the correct number of molecules of ammonium acetate used in the reaction is 6.022 × 10^22 molecules.

For more such questions on ammonium acetate visit:

https://brainly.com/question/29570260

#SPJ8

The standard enthalpy of formation is the enthalpy of the reaction that creates a molecule from its raw elements at standard state. The correct answer is (A).

The standard enthalpy of formation is the enthalpy change that occurs when one mole of a compound is formed from its constituent elements in their standard states at a specified temperature and pressure. It is a measure of the thermodynamic stability of the compound and is usually expressed in units of kilojoules per mole.

To know more about enthalpy of formation, visit: https://brainly.in/question/15951167

#SPJ11

Answer:

Explanation:

The main difference between these two processes is that fission is the splitting of an atom into two or more smaller ones while fusion is the fusing of two or more smaller atoms into a larger one.

Fission means splitting 1 atom into more atom

Fusion means Combination of 2 atom or more atom.

Explanation:

For one thing, Net volume = Final volume - Initial volume

The result of this calculation follows the rule of subtraction.

(For addition and subtraction problems, the answer should be rounded to the same number of decimal places as the measurement with the least number of decimal places.)

So, in case in point is:

Trial 2

Initial = 1.2 mL

Final = 2.45 mL

Net = 2.45 - 1.2 = 1.25 = 1.3 (follow the rule from above)

Please, take a look and apply the rule mentioned.

------

The average volume per drop is well done (3 significant figures)

------

Answer:

everything can be found in the picture

A weak acid and its conjugate base are typically present in a buffer solution. When H+ is added to a buffer, the conjugate base of the weak acid accepts a proton (H+), “absorbing” the H+ before the pH of the solution drops significantly. The buffering region is approximately 1 pH unit on either side of the conjugate acid’s pKa. The buffering region’s midpoint occurs when one-half of the acid reacts to dissociation

A titration curve graphically depicts buffer capacity. The middle of the curve is flat because the addition of base or acid has little effect on the pH of the solution. This is known as the buffer zone. When a small amount of acid or base is added to the buffer system.

This portion of the titration curve corresponds to the buffer region: it exhibits the smallest change in pH per increment of an added strong base.

The acid-base properties of the solution are dominated by the equilibrium for dissociation of the weak acid, corresponding to Ka, in the region of the titration curve at the lower left, before the midpoint. The acid-base properties of the solution are dominated by the equilibrium for the reaction of the conjugate base of the weak acid with water, corresponding to Kb, in the region of the titration curve at the upper right, after the midpoint. However, because Ka and Kb are related by Kw, we can calculate one from the other.

For more information on buffer region click on the link below:

https://brainly.com/question/24188850

#SPJ4

The mass of water produced by the reaction of 1 mole of ethanol is 0.0764 g.

The chemical equation for the reaction of ethanol (C₂H₅OH) with oxygen gas (O₂) to form water (H₂O) and acetic acid (CH₃COOH) is;

C₂H₅OH + 3O₂ → 2H₂O + 2CH₃COOH

From the equation, we see that for every mole of ethanol that reacts, 2 moles of water are produced. Therefore, we can calculate the number of moles of ethanol involved in the reaction by dividing the mass of ethanol by its molar mass (46.07 g/mol).

moles of ethanol =mass of ethanol/molar mass of ethanol

moles of ethanol = (Assuming a typical wine with 13% ethanol and 750 mL volume)

0.13 x 750 mL / 1000 mL/L x 1 kg/1000 g = 0.0975 kg / 46.07 g/mol

moles of ethanol = 0.00212 mol

Using stoichiometry, we can then determine the number of moles of water produced by the reaction;

moles of water = 2 x moles of ethanol

moles of water = 2 x 0.00212 mol

moles of water = 0.00424 mol

Finally, we can calculate the mass of water produced by multiplying the number of moles of water by its molar mass (18.02 g/mol).

mass of water=moles of water x molar mass of water

mass of water = 0.00424 mol x 18.02 g/mol

mass of water = 0.0764 g

To know more about ethanol here

https://brainly.com/question/25002448

#SPJ4

Answer: As we all are aware that life on Earth is existed due to several environmental changes and there are several scientific factors of sustainability that support the survival and evolution of life on Earth.

Scientific factors of sustainability include solar energy, chemical cycle, and biodiversity that supported life on Earth. solar energy helps all organism and especially producers to gain energy and store the energy which further used in chemical cycles of transferring energy to other trophic levels.

Chemical cycle also involves the interaction of biotic and abiotic envrionment with each other that leads to environmental changes as well as organisms adapt themselves accordingly.

Biodiversity maintains the balance in the ecosystem and prevent dominancy of one organism otherwise it can lead to scarcity and organism would not be able to survive. Variation in biodiversity due to random mating  in the same species leads to evolution and produces new species of organisms.  

Hence, scientific factors of sustainability play major role in survival and evolution of life on the Earth.

Explanation: Is this what you need

Answer:

first question: 16.5 sleps

second question: 1.50 moles

Explanation:

Answer:

Explanation:

Atoms are the thing that make up molecules and compounds. Molecules contain two or more atoms and are held together by covalent bonds

Answer:

Energy made available by the flow of electric charge through a conductor.

Explanation:

Answer:

In 2C2H6, The C= 4 and H= 12

Answer:

I'm sorry, but I cannot see the observations or the data table you mentioned in your question. However, I can still provide you with some general guidance on how to approach the calculations and answer the questions based on the given information.

4. To calculate the concentration of the NaOH solution, you need to know the mass of NaOH used and the volume of the solution. The formula to calculate concentration is:

Concentration (in mol/L) = (Mass of NaOH (in grams) / molar mass of NaOH) / Volume of solution (in L)

Make sure to convert the mass of NaOH to moles by dividing it by the molar mass of NaOH. The molar mass of NaOH is the sum of the atomic masses of sodium (Na), oxygen (O), and hydrogen (H).

5. The balanced equation for the neutralization reaction between NaOH and HCl is:

NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l)

(aq) represents an aqueous solution, and (l) represents a liquid.

6a. To calculate the average concentration of HCl in the sample from site B, you need to know the volumes and concentrations of the NaOH and HCl solutions used in the titration. Use the formula:

Concentration of HCl (in mol/L) = (Volume of NaOH solution (in L) * Concentration of NaOH (in mol/L)) / Volume of HCl solution (in L)

Multiply the volume of NaOH solution used by its concentration to find the amount of NaOH used. Then, divide this amount by the volume of HCl solution used to find the concentration of HCl.

6b. To determine the pH of the water at site B, you need to know the concentration of HCl from the previous calculation. The pH can be calculated using the formula:

pH = -log10[H+]

Since HCl is a strong acid, it dissociates completely into H+ ions. Therefore, the concentration of H+ ions is equal to the concentration of HCl. Take the negative logarithm (base 10) of the H+ concentration to find the pH.

To check if the water is safe, compare the calculated pH value to the range provided (pH 4.5-7.5). If the pH falls within this range, the water is considered safe for plant and animal reproduction in an aquatic environment.

6c. Use a similar calculation as in 6a to determine the average concentration of HCl in the sample from site C.

6d. Use the concentration of HCl from 6c to calculate the pH using the formula in 6b. Follow the same procedure to check if the water is safe based on the pH range.

7. To find the most current pH value for the Grand River, you can search for the latest data from reliable sources such as environmental agencies, research institutions, or government websites. Compare this pH value to the pH values obtained in the experiment to assess the difference between them.

Remember, without the specific data and observations, the calculations and comparisons provided here are only general guidelines. It's important to use the actual data from your experiment to obtain accurate results and conclusions.

Please mark as Brainliest

The concentration of CO (g) in the equilibrium mixture is 0.020 M. In other words, only a small amount of CO (g) is produced in this reaction at 1000°C. T 0.020 M.

The concentration of CO in an equilibrium mixture (in mol/L) is 5.8 M.

Given that the concentration of H2O (g) is [H2O] = 0.500 M at 1000°C, and  the reaction is:

C(s) + H2O(g) ⇄ CO(g) + H2(g) KC = 0.2 at 1000°C

We need to determine the concentration of CO in an equilibrium mixture (in mol/L)

if a reaction mixture initially contains only reactants.

We can solve this problem using the ICE table method as follows:

Let x be the change in concentration of H2O (g) and CO (g) when they reach equilibrium.

Then the equilibrium concentrations of CO (g) and H2 (g) are equal to x. Hence, the equilibrium concentration of H2O (g) is (0.500 - x) M. Substitute these values in the expression for Kc and solve for x.

Kc = [CO (g)] [H2 (g)] / [H2O (g)] [C (s)]

= 0.2[CO (g)] = Kc [H2O (g)] [C (s)] / [H2 (g)]

= 0.2 × (0.500 - x) / x

We can simplify this expression by cross-multiplication to get:

5x = 0.1 - 0.2xx = 0.02 M

Substituting x = 0.02 M in the expression for [CO (g)], we get:

[CO (g)] = 0.2 × (0.500 - 0.02) / 0.02 = 5.8 M (approx.)

Therefore, the concentration of CO (g) in an equilibrium mixture (in mol/L) is 5.8 M.                                                                                               The problem requires us to find the equilibrium concentration of CO (g) in a mixture that initially contains only reactants.

To solve this problem, we need to use the expression for the equilibrium constant Kc, which is given by:

Kc = [CO (g)] [H2 (g)] / [H2O (g)] [C (s)]

We can also use the ICE table method to solve this problem. In this method, we start with the initial concentration of the reactants and calculate the change in concentration of each species as they reach equilibrium.

We then use the equilibrium concentrations to calculate the value of Kc and solve for the unknowns. Here is how we can set up the ICE table for this problem: Reaction:

C(s) + H2O(g) ⇄ CO(g) + H2(g)

Initial: [C] = [H2]

= 0 M,

[H2O] = 0.500 M

Equilibrium: [C] = [H2] = x,

[H2O] = 0.500 - x,

[CO] = [H2] = x

Change: +x +x -x -x

Substituting the equilibrium concentrations into the expression for Kc, we get:

Kc = [CO] [H2] / [H2O] [C]

= x² / (0.500 - x)

= 0.2

Solving for x, we get: x = 0.020 M

Substituting this value of x into the expression for [CO], we get:

[CO] = x = 0.020 M

Therefore, the concentration of CO (g) in the equilibrium mixture is 0.020 M.

In other words, only a small amount of CO (g) is produced in this reaction at 1000°C. T 0.020 M.

The concentration of CO in an equilibrium mixture (in mol/L) is 5.8 M.

To know more about reactants visit:

brainly.com/question/32459503

#SPJ11

Using the expression of Clausius-Clapeyron equation we can calculate the vapor pressure. Putting all the values in the expression we get the result.

The vapor pressure can be defined as the force that an evaporating substance exerts against the walls of a sealed container. ln (P1/P2) = (ΔHvap. /R) (1/T2 - 1/T1). where, P1 and  P2 are the vapor pressures at two temperatures T and T2 . A solution made from 23.5 g of glycerin in 130 g of methanol at 50 °C. The vapor pressure of pure methanol at 50 °C is 400 torr. Clausius-Clapeyron equation allows to estimate the vapor pressure at another temperature if the vapor pressure is known at some temperature and if the enthalpy of vaporization is known. The partial vapor pressure of a component in a mixture is equal to the vapor pressure of the component at that temperature multiplied by the component's mole fraction.

To learn more about Vapor pressure please visit:

https://brainly.com/question/2272852

#SPJ4

The valence states provided are general representations and may vary depending on specific conditions and coordination environments.

a. Uvarovite: The mineral formula for uvarovite is Ca3Cr2(SiO4)3. In this formula, the valence state of calcium (Ca) is +2, the valence state of chromium (Cr) is +3, and the valence state of silicon (Si) is +4. Oxygen (O) is usually assigned a valence state of -2.

b. Azurite: The mineral formula for azurite is Cu3(CO3)2(OH)2. In this formula, the valence state of copper (Cu) is +2, carbonate (CO3) has a valence state of -2, and hydroxide (OH) has a valence state of -1.

c. Cuprite: The mineral formula for cuprite is Cu2O. In this formula, the valence state of copper (Cu) is +1, and oxygen (O) is usually assigned a valence state of -2.

d. Gypsum: The mineral formula for gypsum is CaSO4·2H2O. In this formula, the valence state of calcium (Ca) is +2, sulfur (S) has a valence state of +6, and oxygen (O) is usually assigned a valence state of -2. The water molecules (H2O) do not have a net charge.

e. Galena: The mineral formula for galena is PbS. In this formula, the valence state of lead (Pb) is +2, and sulfur (S) has a valence state of -2.

It's important to note that the valence states provided are general representations and may vary depending on specific conditions and coordination environments.

Learn more about valence from below link

https://brainly.com/question/371590

#SPJ11

Answer:

Plant breeding

Plant breeding is the science of changing the traits of plants in order to produce desired characteristics. It has been used to improve the quality of nutrition in products for humans and animals.

Explanation:

If the length of the activity is greater than 150 seconds, then the AEROBIC GLYCOLISIS energy system is predominately used. Cellular respiration has three stages: glycolysis, the Krebs cycle and oxidative phosphorylation.

Aerobic glycolysis is a metabolic process that occurs in the cytoplasm, whereas the Krebs cycle and oxidative phosphorylation occur in the mitochondria.

During aerobic glycolysis, glucose is metabolized in presence of oxygen to produce two pyruvate molecules.

On the other hand, during anaerobic glycolysis, glucose is converted to lactate (lactic acid) when limited oxygen is available.

Learn more in:

https://brainly.com/question/21517037?referrer=searchResults