how much of this water would have to be consumed for someone to ingest 57 mg of mercury?express your answer using two significant figures.

The transition points for each phase change are the melting point, boiling point, freezing point, and condensation point.

The melting point is the temperature at which a solid substance melts and turns into a liquid.

The boiling point is the temperature at which a liquid turns into a gas. The freezing point is the temperature at which a liquid turns into a solid, and the condensation point is the temperature at which a gas turns into a liquid.

The effect of energy in phase transitions of matter is that it is required to change the phase of matter.

For example, when a solid is heated, energy is added to it, which causes its temperature to increase until it reaches its melting point.

At the melting point, the energy causes the solid to melt and become a liquid. Similarly, when a liquid is heated, energy is added to it, causing its temperature to increase until it reaches its boiling point. At the boiling point, the energy causes the liquid to turn into a gas.

Changes in temperature and states of matter are represented in heating and cooling curves by plotting temperature against time.

Heating curves show the change in temperature of a substance as heat is added, and cooling curves show the change in temperature of a substance as heat is removed.

The flat regions on the curve represent the phase changes, where the energy being added or removed is being used to change the state of the substance rather than to increase or decrease its temperature.

Read more about states of matter here:

https://brainly.com/question/9402776

#SPJ1

The balanced equation for the neutralization of hydrochloric acid with aluminum hydroxide is, 3HCl(aq) + Al(OH)₃(s) → AlCl₃(aq) + 3H₂O(l).

The neutralization reaction between hydrochloric acid (HCl) and aluminum hydroxide (Al(OH)₃) can be represented by the following balanced chemical equation,

3HCl(aq) + Al(OH)₃(s) → AlCl₃(aq) + 3H₂O(l)

In this equation, the hydrochloric acid (HCl) is in the aqueous state (indicated by "(aq)"), meaning it is dissolved in water. The aluminum hydroxide (Al(OH)₃) is in the solid state (indicated by "(s)"). When the acid and base react, they form aluminum chloride (AlCl₃) in the aqueous state and water (H₂O) in the liquid state.

This reaction is an example of a neutralization reaction, where an acid and a base react to form a salt and water. The aluminum hydroxide acts as a base, as it can accept hydrogen ions (H+) from the acid, and neutralize the acid. The resulting solution will have a neutral pH, indicating that the acid has been neutralized.

To know more about aluminum hydroxide, here

brainly.com/question/9572867

#SPJ4

From one of the most acidic via least acidic, these compounds' bold-faced hydrogens are II > III > V > IV > I.

Why do you use the word "acidity"?

Acidity explains how much acid is present in a material. An acid is a substance that releases hydrogen ions into water and reacts with certain metals to generate salts.

According to the given question:

The strong acids are those which completely ionizes in the aqueous solution. the strong acid will losses more H⁺ ion when it dissolved in the water. The weak acids are those which are partially ionizes in the aqueous solution.  the strong acid will losses few H⁺ ion when it dissolved in the water.

Therefore from most acidic via least acidic, these compounds' bold-faced hydrogens are II > III > V > IV > I.

The complete question is-

Rank the bold-faced hydrogens for the following compounds from most acidic to least acidic. (Attachment below for options)

To know more about Acidity visit:

brainly.com/question/14072179

#SPJ4

Answer:

Name Zirconium

Atomic Number 40

Atomic Mass 91.224 atomic mass units

Number of Protons 40

Number of Neutrons 51

Explanation:

Answer:

(b)  19.9 moles

Explanation:

To convert from moles Al to moles O₂, you need to multiply the given value by the mole-to-mole ratio of each component. This ratio is constructed via the coefficients in the balanced reaction. The desired unit (moles O₂) should be placed in the numerator to allow for the cancellation of units.

2 Al₂O₃ ----> 4 Al + 3 O₂
                    ^         ^            

26.5 moles Al           3 moles O₂
---------------------  x  ----------------------  =  19.9 moles O₂
                                 4 moles Al

If impurities are present in the solvent, they may affect the measured molecular weight of the solute if they interact with the solute. However, if they do not interact with the solute, they will have no effect on the calculated molecular weight.

The molecular weight of a solute is determined by measuring the mass of the solute and dividing it by the number of moles present in the solution. The number of moles present is determined by the concentration of the solution, which is measured by the molality. Molality is calculated by dividing the mass of the solute by the mass of the solvent.
If there are impurities present in the solvent, they will contribute to the mass of the solvent and therefore affect the calculated molality of the solution. However, if these impurities do not interact with the solute, they will have no effect on the calculated molecular weight.
It is important to note that impurities may interact with the solute and affect the molecular weight calculation. For example, if the impurities are able to form complexes with the solute, the number of solute particles present in the solution may be reduced, leading to a higher calculated molecular weight.
Overall, it is important to consider the potential interactions between impurities and solutes when calculating molecular weights. If the solute and solvent are not pure, it may be necessary to take additional steps to ensure accurate calculations, such as using a different solvent or purifying the solute and solvent before use.

For more questions on molecular weight

https://brainly.com/question/20146794

#SPJ11

Answer: in order, cellular respiration, carbon dioxide, agricultural, methane, digestion, volcanic activity, eruption

Explanation:

its hard to explain why these things are thing you will have to memorize at first and then as you get later into science, you will learn about chlorophyll and mitochondria, and all sorts of fun things!

Formation and dissociation constants are related in that they are inverses of each other and must have a product that equals the equilibrium constant of the reaction.

Formation and dissociation constants, also known as Kf and Kd respectively, represent the equilibrium concentrations of the reactants and products in a chemical reaction.

Kf is the constant of formation, which is the product of the concentrations of the products of the reaction, divided by the product of the concentrations of the reactants.

Kd is the dissociation constant, which is the product of the concentrations of the reactants, divided by the product of the concentrations of the products .

Kf and Kd are related in that the product of Kf and Kd must equal Kw, which is the equilibrium constant for the reaction.

The value of Kw is constant, meaning that regardless of the equilibrium concentrations of reactants and products, Kf and Kd must be inverses of each other such that the product of Kf and Kd must equal Kw.

Therefore, formation and dissociation constants are related in that they are inverses of each other and must have a product that equals the equilibrium constant of the reaction.

to know more about dissociation constants refer here:

https://brainly.com/question/28197409#

#SPJ11

Answer:

Explanation:

i got D

Answer:

nano3+agcl2

Explanation:

double displacement reaction

A molecule is, simply put, two or more atoms (usually covalently) bonded to one another. The atoms in the molecule can be of different elements, such as in H2O or PCl3, or of the same elements, such as in F2 or O3.

So, B would be the correct answer.

The correct option is B.

B. a substance that is formed when two or more atoms join

The following information should be considered:

Learn more: brainly.com/question/17429689

Explanation:

I first take back the numbers to their original forms that is to say (5.55×10^15) = 5550000000000000 and (8.88×10^18) = 8880000000000000000 therefore the difference of the two will be 887445 which is notated to (8.87445×10^5)

Answer: (8.87445×10^5)

Answer:

ionic salt MX2

Explanation:

Atoms from an element in group IIA are allowed to react with atoms from an element in group VIIA. What type of compound is likely to form

elements from IIA are alkali earth metals (M) and need to lose

2 e^1- to become stable as M^2+

elements from VIIA ar halogens (X) and need to gain 1 e^1-

to become stable so one M^2+ combines with 2 X^1- to make

an ionic salt MX2

Answer:

chemical bonds between the reactants are broken

Explanation:

i did the test

Answer:

True

Explanation:

A chemical change will produce new substances that are different from its original substance.

Versus a physical change that changes shape/form physically like water freezing into ice.

Answer:

Explanation:

The balanced chemical equation between

SrO + 2HCl → H2O + SrCl2

Specific heat is used to explain why different substances changes the temperature at different rate.

Temperature is a physical quantity which is expressed as quantitatively the perceptions of the coldness and hotness. Temperature is measured with a thermometer.

It is defined as the amount of heat which is used to require to increase the temperature by 1°C.

The SI unit thorough which it is measured is J/ g/ °C.

Let's take an example of specific heat of water which is 4.184J/ g/ °C.

Therefore, specific heat is used to explain why different substances changes the temperature at different rate.

learn more about special heat:

https://brainly.com/question/28852989

#SPJ1

The reduced pressure and reduced temperature (Pr and Tr) are temperature and pressure normalized with respect to their critical point counterparts.

The critical point of a substance refers to the specific temperature and pressure at which the liquid and gas phases become indistinguishable. When discussing the behavior of substances, it is often useful to compare their temperature and pressure to the values at the critical point. To achieve this comparison, the reduced pressure (Pr) and reduced temperature (Tr) are introduced.

The reduced pressure (Pr) is calculated by dividing the actual pressure of the substance by its critical pressure. It provides a relative measure of the pressure compared to the critical pressure. Similarly, the reduced temperature (Tr) is obtained by dividing the actual temperature by the critical temperature of the substance. It represents the temperature normalized with respect to the critical temperature.

By using these reduced parameters, scientists and engineers can analyze and compare the behavior of different substances under varying conditions, without relying solely on absolute temperature and pressure values.

learn more about reduced temperature here:

https://brainly.com/question/33387410

#SPJ11

Answer:

Power = 1011.2 Watts

Explanation:

Given the following data;

Voltage = 128 Volts

Current = 7.9 Amperes

To find the power rating;

Mathematically, the power rating of an electrical device is given by the formula;

Power = current * voltage

Power = 128 * 7.9

Power = 1011.2 Watts

The root-mean-square speed of the molecules will be the highest in SF6 at 200°C. According to the kinetic-molecular theory, the root-mean-square speed of gas molecules is directly proportional to the square root of their absolute temperature and inversely proportional to the square root of their molar mass.

The formula for calculating the root-mean-square speed is:

vrms = √(3RT/M)

where:

vrms = root-mean-square speed

R = ideal gas constant

T = absolute temperature

M = molar mass of the gas

At a given temperature, gases with lower molar masses will have higher root-mean-square speeds. In this case, we are comparing gases at 200°C. Among the given options (O2, H2O, and SF6), SF6 has the highest molar mass. Therefore, according to the kinetic-molecular theory, the root-mean-square speed of SF6 molecules will be the highest at 200°C.

The root-mean-square speed of molecules is not the same for all gases at a given temperature. It depends on the molar mass of the gas. In this case, SF6 has the highest molar mass among the given options, so its molecules will have the highest root-mean-square speed at 200°C.

To learn more about root-mean-square speed , visit

brainly.com/question/20775571

#SPJ11

Answer:

Some early research suggests that subliminal messages may influence food- and diet-related thoughts and behaviors. However, other research has found that subliminal messages with weight loss cues have no effect.

Explanation:

The total interaction energy in units of eV/atom assuming λ = 4156 eV and R_0/rho = 12 is 150N eV/atom.

Given Potential for two inert gas (Xe) atoms at separation R :

U=λe^(-R/rho)-R^6/a^6

a) To calculate the potential energy of the two atoms at equilibrium separation R_0,

we have to put dU/dR = 0λ e^(-R_0/rho) = (6R_0^6)/(a^6)λ e^(-R_0/rho) = (6(12rho)^6)/(a^6)

Therefore, λ = (6(12rho)^6)/(a^6) * e^(12)

The potential energy can be expressed as, U=λe^(-R_0/rho) = ((6(12rho)^6)/(a^6)) * e^(12) * e^(-12rho/rho)= ((6*12^6)/a^6) * e^(-11rho)

b) Given R_0 = 12rho, λ = (6(12rho)^6)/(a^6) * e^(12)

Therefore, λ = (6(12rho)^6)/(a^6) * e^(12) = (6 * 12^6)/(a^6) * e^(12) * e^(-12) = (6 * 12^6)/(a^6)

Potential energy U = λe^(-R_0/rho) = (6 * 12^6)/(a^6) * e^(-11rho)c)

The total interaction energy in units of eV/ atom assuming λ = 4156 eV and R_0/rho = 12

Therefore, λ = (6(12rho)^6)/(a^6) * e^(12) = (6 * 12^6)/(a^6) * e^(12) * e^(-12) = (6 * 12^6)/(a^6)

Total energy (U) = (N/2)U = (N/2)λe^(-R_0/rho) = (N/2)(6 * 12^6)/(a^6) * e^(-11rho) = 150N eV/atom.

Therefore, the total interaction energy in units of eV/atom assuming λ = 4156 eV and R_0/rho = 12 is 150N eV/atom.

Learn more about energy with the given link,

https://brainly.com/question/2003548

#SPJ11

Atoms have slowly become more complicated over time.

option A.

The atomic structure refers to the structure of an atom comprising a nucleus (center) in which the protons (positively charged) and neutrons (neutral) are composed within the atomic nucleus.

The atomic model has changed from Dalton to Rutherford to Bohr and Schrödinger because Atoms have slowly become more complicated over time.

The remaining options about the reason for the change of atomic model are not correct and they include;

Learn more about atomic model here: https://brainly.com/question/25534456

#SPJ1

Answer:

The answer is d

Explanation:

The change in temperature and activation energy as compared impact the reaction rate should be considered option d.

In the case when the temperature is increased so there should be molecule gain energy and due to which it moved faster.

So there should be the greater the temperature, the higher should be probability so here the molecule should be movement for the activation energy for the reaction.

Hence, the option d is correct.

Learn more about temperature here: https://brainly.com/question/9676509

The percent by mass of mercury in mercuric oxide is

93 %.

The molecular formula of mercuric oxide is HgO. Mercury is liquid at room temperature and readily combines with oxygen to form mercuric oxide. Mercury is represented by the symbol Hg. The mass percent is defined as the ratio of the mass of the reactant to the mass of the product into 100. When mercuric oxide undergoes decomposition, it gives mercury and oxygen. And this reaction is endothermic.

The balanced equation for the reaction of mercury oxide is,

\(2HgO (s)→ 2Hg (l) + O _{2}(g)\)

Mass of mercury oxide = 28.4 g

Mass of the oxygen = 2 g

The percent by mass of mercury in mercury oxide is,

\(Mass ℅= \frac{Mass \: of \: Mercury }{Mass \: of \: Mercury \: oxide} \times 100\)

\(= \frac{28.4 - 2}{28.4} \times 100\)

= 93 %

Therefore, the percent by mass of mercury in mercury oxide is 93 %.

To know more about percent by mass, refer to the below link:

https://brainly.com/question/14990953

#SPJ4

The balance equation of the reaction is

\(3KClO_3+AlP\to Al(ClO_3)_3+K_3P\)

The species in the reaction are;

Let's try to balance the potassium on both sides of the reaction.

\(KClO_3+AlP\to Al(ClO_3)_3 + K_3P\\3KClO_3+ AlP \to Al(ClO_3)_3 + K_3P\\\)

To do this, we need to add 3 to the reactant side of the reaction to balance the effect on the product side of the reaction.

The balance equation of the reaction is

\(3KClO_3+AlP\to Al(ClO_3)_3+K_3P\)

Learn more on balancing of equation here;

https://brainly.com/question/13852350

https://brainly.com/question/25171818

5 meters= 0.005

3 grams= 300millgrams

7 meters= 700 cm

60 milligrams=6e-5

2.5 meters=2500

4.5 centimeter= 4.5e-5km

Svante Arrhenius theory suggests that in order for a substance to release either H+ or OH- ions, it must contain that particular ion. However, this does not explain the weak base ammonia (NH3), In Bronsted-Lowry acid-base theory, acids are defined as proton donors; whereas bases are defined as proton acceptors.

With the chemical formula NH3, ammonia is a nitrogen and hydrogen inorganic compound. Ammonia is a colorless gas with a strong, pungent odor.

It is a stable binary hydride and the most basic pnictogen hydride. In terms of biology, it is a typical nitrogenous waste, especially among aquatic organisms, and it significantly contributes to the nutritional requirements of terrestrial organisms by acting as a precursor to 45 percent of the world's food and fertilizers.

Approximately 70% of ammonia is used to create fertilizers, including urea and diammonium phosphate, in a variety of shapes and compositions. Additionally, pure ammonia is sprayed onto the ground.

Learn more about ammonia

https://brainly.com/question/14854495

#SPJ9

Answer:

Glucose will enter the cell through osmosis.

Explanation:

Diffusion causes molecules to move from high concentration to low concentration, so the glucose molecules outside the cell will move through the membrane to inside of the cell.

It is true that 1,3-butadiene has the chemical formula C4H6 and is a conjugated diene. A popular monomer in the creation of synthetic rubber, polymers, and resins, it is a colourless, flammable gas.

A conjugated diene with the chemical formula C4H6 is 1,3-butadiene. A popular monomer in the creation of synthetic rubber, polymers, and resins, it is a colourless, flammable gas. Because of the butadiene's conjugated double bond system, pi-electrons are delocalized over the whole molecule, giving it special characteristics including high reactivity, a low boiling point, and a propensity for addition reactions. Butadiene is a crucial industrial chemical that is created by the catalytic dehydrogenation of butene or butane. It finds usage in a variety of petrochemical, polymer, and automotive applications.

learn more about chemical formula here:

https://brainly.com/question/29031056

#SPJ4