When boiling, the total mass of liquid and vaporized water (1 point)
O increases.
O stays the same.
O fluctuates.
O decreases.

Refer to the attachment

According to the molecular geometry, bonds in carbon tetrachloride are polar and that in nitrogen are non polar.

Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.

It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.

They provide information about geometry by taking into considerations the vibrational and rotational absorbance of a substance.Neutron and electron diffraction techniques provide information about the distance between nuclei and electron density.

Learn more about molecular geometry,here:

https://brainly.com/question/7558603

#SPJ2

0.65mol \(Alx_{2} (So_{4} )_{3}\) are produced during the reaction.

How many grams of Al2(SO4)3 are produced during the following reaction?

2 Al + 3 H2SO4 → Al2(SO4)3 + 3 H2

Molar mas:26.98 →341.15g/mol

All take 35g.

Moles of aluminum=35/26.98=1.29mol.

2mole of aluminum will give=1/2*1.29=0.65

Therefore, 0.65mol \(Alx_{2} (So_{4} )_{3}\).

To learn more about Molar mass, refer to:

https://brainly.com/question/837939

#SPJ9

Answer:

a) the maximum number of phases that can exist in equilibrium is \(c_{ind\) + 2

b) the number of independent components in this system are 6

Explanation:

We know that, The degree of freedom f for a system can be simply referred to as number of variables that must be defined to completely solve a system.

If degree of freedom is 0, then any problem is can be solved.

a) If a system has cind independent components, what is the maximum number of phases that can exist in equilibrium?

The degree of freedom for a system can be written as;

f = \(c_{ind\) - p + 2

where f is the degree of freedom

\(c_{ind\) is the number of independent component

so we solve for \(c_{ind\)

\(c_{ind\) = f + p - 2

we know that f can not be less than 0

Hence maximum possible face will be;

\(c_{ind\) = p - 2

p = \(c_{ind\) + 2

Therefore, the maximum number of phases that can exist in equilibrium is \(c_{ind\) + 2

b) A given system has eight liquid phases in equilibrium with each other. What must be true about the number of independent components in this system?

Number of phases in the system p = 8

p = \(c_{ind\) + 2

\(c_{ind\) = p - 2

we substitute

\(c_{ind\) = 8 - 2

\(c_{ind\) = 6

Therefore, the number of independent components in this system are 6

Answer:B electrons fill orbitals In order of their increasing energy from left to right

Explanation:

The original volume of the concentrated solution was 182.7 mL.

To solve this problem, we can use the formula for dilution:

C1V1 = C2V2

Where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

We are given that the initial concentration (C1) is 2.3 M, the final concentration (C2) is 2.1 M, and the final volume (V2) is 191.8 mL. We want to find the initial volume (V1).

Plugging in the values we know into the dilution formula, we get:

(2.3 M) V1 = (2.1 M) (191.8 mL)

Simplifying this expression, we can solve for V1:

V1 = (2.1 M) (191.8 mL) / (2.3 M)

V1 = 182.7 mL

It's important to note that the units of concentration and volume must be consistent in this formula. In this case, the concentrations are given in units of M (moles per liter), and the volumes are given in units of mL (milliliters).

For such more questions on concentrated

brainly.com/question/29661329

#SPJ11

Answer:

D

Explanation:

The ratio of C6H12O6 (which will be referred to as "the carb") to oxygen is 1 to 6, so if we find an answer which has the same ratio, it should be chosen. A is 1:3
B is even worse with a ratio of the carb to oxygen of 1:2
C is the same as B, 1:2
D has a ratio of the carb to oxygen of 1:6, which is what we are looking for.

Answer:

A - The can was open and gases were released.

Answer:

Molar mass = 12.51 g/mol

Explanation:

V = 3L

P = 1.25 atm

T = 20 C = 20 + 273 = 293 K (Upon conversion to kelvin temperature)

n =?

m = 1.95g

Molar mass = ?

The variables are related by the follwing equation;

pV = nRT

where r = gas constant = 0.0821 L atm K−1

Solving for n, we have;

n = pV / RT

n = (1.25 * 3 ) / (0.0821 * 293)

n = 3.75 / 24.0553 = 0.1559 mol

The relationship between number of moles, n and molar mass is given as;

n = mass / molar mass

Molar mass = Mass / n = 1.95 / 0.1559

Molar mass = 12.51 g/mol

Using Newton's second law, the car is experiencing a net force parallel to the banked curve such that

\(mg \sin(\theta) = \dfrac{mv^2}r \implies \sin(\theta) = \dfrac{v^2}{rg}\)

where \(v\) is the tangential speed of the car and \(r\) is the radius of the curve. Solve for \(\theta\) :

\(\sin(\theta) = \dfrac{\left(61.0\frac{\rm m}{\rm s}\right)^2}{(1860\,\mathrm m)g} \approx 0.204 \implies \theta = \sin^{-1}(0.204) \approx \boxed{11.8^\circ}\)

Answer:

A liquid of unknown composition: Unknown liquid

A liquid of known composition: Known liquid

A solid-liquid mixture of unknown composition: Unknown solid-liquid mixture

A solid of known composition: Known solid

Answer:

A

Antoine-Laurent Lavoisier

:D

The scientist was most essential to the use of radioactive isotopes in medicine is " John Lawrence's".

The radioactive isotopes of such an element were called radioisotopes. Atoms that have too much energy in their nucleus or even an unstable neutron-proton pair.

It marked the beginning of John Lawrence's lengthy career of service and the first time a radioactive isotope had already been employed in the management of a human illness. His laboratory is regarded as the origin of nuclear medicine, for which he is regarded as its father.

The scientist most essential to the use of radioactive isotopes in medicine is " John Lawrence's".

To know more about radioactive isotopes.

https://brainly.com/question/1907960

#SPJ3

Answer:

C. hydration number

Explanation:

When we dissolve an ionic compound (a charged species) the charges can interact with the water molecule. In the case of cations (positive charges) the negative dipole of water (generated in the oxygen) will interact with the positive charge at the same time the anions (negative charges) the positive dipole of water (generated in the hydrogen).

The amount of water molecules that can interact with a single ion (cation or anion) is called hydration number. In the example, we have a hydration number of "4" for the sodium cation.

I hope it helps!

Answer:

A

Explanation:

Answer:The balanced equation of Mg(s) + 2HCl(aq) ==> MgCl2(aq) + H2(g) does NOT tell you how many moles of Mg or H2 are present.  It only tells you the MOLE RATIO of the reactants and products.  Thus, 1 mole Mg reacts with 2 moles HCl to produce 1 mole of hydrogen gas.

Explanation:The balanced equation of Mg(s) + 2HCl(aq) ==> MgCl2(aq) + H2(g) does NOT tell you how many moles of Mg or H2 are present.  It only tells you the MOLE RATIO of the reactants and products.  Thus, 1 mole Mg reacts with 2 moles HCl to produce 1 mole of hydrogen gas.

Here, the limiting reactant is Mg. The number of moles of Mg is 0.019 and that of HCl is 0.134. The number of moles of H2 produced is 0.019.

The limiting reactant in a reaction is the reactant which is fewer in moles and thus, determine the yield of the reaction. In the given reaction, two moles of HCl reacts with one mole of magnesium metal.

Given the mass of Mg = 0.475 g

atomic mass = 24 g/mol

no.of moles  = 0.475 /24 = 0.124

volume of HCl = 0.124 L

molarity = 1.08 M

number of moles  = molarity × volume = 0.134

The limiting reactant here is magnesium. One  mole of  Mg reacts with 2 moles of HCl giving 1 mole of hydrogen gas. Then 0.019 moles will give 0.019 moles of hydrogen gas.

Find more on limiting reactant:

https://brainly.com/question/14225536

#SPJ2

Answer:1.4652

Explanation:

0.74g/ml

0.74x1.98

=1.4652

Explanation:

Rate = 84mL/s

A minute has 60 seconds;

Rate = 84mL/s * 60s = 5040 mL/minute

Volume of blood in a minute = Rate * Number of beeats per minute

Volume = 5040 * 72 = 362880 mL

How long to circulate 3500ml?

1 minute = 362880mL

x = 3500 mL

x = 3500mL min / 362880mL

Math Expression:

Time to circulate 3500ml of blood (min) = 3500ml * 1 minute / Volume of blood at a rate of 84ml/s and 72 beats per minute (ml)

The required balanced chemical equation CH₄ + 2O₂ = CO₂ + 2H₂0

Combustion is a chemical reaction between a fuel and an oxidant that produces an oxidized product.

Usually, its a reaction between a hydrocarbon and oxygen to yield carbon dioxide, water, and heat.

Hydrocarbon + Oxygen = Carbon Dioxide + Water + Heat

Balanced chemical equation is CH₄ + 2O₂ = CO₂ + 2H₂0

To know more about combustion

https://brainly.com/question/3323668

#SPJ1

Answer:

b) different branches of science are connected

Answer:

b

Explanation:

a p e x :)

Answer:

Because of the difficulties of measuring the atmosphere's properties above the earth's reachable surface

Explanation:

Hello,

In this case, meteorology is the branch of science studying the atmosphere in its weather processes and forecasting and it had a late development because of the difficulties of measuring the atmosphere's properties above the earth's reachable surface. We cannot forget that even nowadays, it is very difficult to predict upcoming weathers with the 100 % assurance and with many days in advance.

Best regards.

Meteorology is developed lately as compared to other branches of science due to far away from the reach of humans.

Meteorology is a late developer compared to other branches of science because the measuring the climatic conditions in the atmosphere is difficult and even impossible without the presence of advance technologies.

To find out the weather as well as climatic conditions can't be measured due to it is not reachable to the human like other materials present on the earth surface so we can conclude that meteorology is developed lately as compared to other branches of science due to far away from the reach of humans.

Learn more: https://brainly.com/question/16565664

Answer:

$95

Explanation:

.75 x 120 = 90

90+5 = 95

Answer:

295000 m/ms pretty sure

Explanation:

Answer: oxide

Explanation:..

To graph the function g(x) = f(-x), you can start with the graph of f(x) and then reflect it about the y-axis.

To find the graph of the function g(x) = f(-x), we can start with the graph of the function f(x) and then reflect it about the y-axis.

If the graph of f(x) is symmetric with respect to the y-axis, meaning it is unchanged when reflected, then g(x) = f(-x) will have the same graph as f(x).

However, if the graph of f(x) is not symmetric with respect to the y-axis, then g(x) = f(-x) will be a reflection of f(x) about the y-axis.

In either case, the resulting graph of g(x) = f(-x) will be symmetric with respect to the y-axis.

Learn more about the graph of functions at: https://brainly.com/question/17089414

#SPJ1

Biotechnology is the use of living organisms or other biological systems in the manufacture of drugs or other products or for environmental management, as in waste recycling: includes the use of bioreactors in manufacturing, microorganisms to degrade oil slicks or organic waste, genetically engineered bacteria to produce human hormones, and monoclonal antibodies to identify antigens.

Biotech offers the possibility of improving human health, the environment, and agriculture while creating more sustainable modes of production.

The Bohr models shows that the atoms has central nucleus that contains protons, neutrons and electrons that are revolving around the nucleus in a circular orbit at a specific distance.

Bohr's model stated that the electrons revolve around the nucleus in a stable orbit without emission of radiation.

It is relatively primitive model of hydrogen atom.

It stated that each shell or orbit corresponding to the definite energy.

It stated that the electrons present in the atoms can move from lower energy to higher energy by absorbing energy.

This models has ability to account for the stability of an atoms.

Thus, the Bohr models shows that the atoms has central nucleus that contains protons, neutrons and electrons that are revolving around the nucleus in a circular orbit at a specific distance.

To learn more about Bohr model, refer to the link below:

https://brainly.com/question/3964366

#SPJ5

If HCl, HNO3, and NaOH solutions were prepared at higher concentrations, the change in concentration will make the measurement more accurate.

Concentration in chemistry is calculated by dividing a constituent's abundance by the mixture's total volume. Mass concentration, concentration in moles, numerical concentration, or volume concentration are four different categories of mathematical description.

Any type of chemical mixture can be referred to by the term "concentration," however solvents and solutes in solutions are most usually mentioned. If HCl, HNO3, and NaOH solutions were prepared at higher concentrations, the change in concentration will make the measurement more accurate.

To know more about Concentration, here:

https://brainly.com/question/10725862

#SPJ1

Answer:

Hope this helps ;) don't forget to rate this answer !

Explanation:

The molar mass of a sample can be calculated using the formula:

Molar mass = (molecular weight) / (number of moles)

To find the molar mass, we first need to find the molecular weight of the sample. The molecular weight is the weight of a single molecule of the substance in atomic mass units (amu).

To find the molecular weight, we need to convert the weight of the molecule from grams to amu. One amu is equal to 1.66 x 10^-24 grams.

So, to convert the weight of the molecule from grams to amu, we can divide the weight of the molecule (5.34 x 10^-23 grams) by the conversion factor (1.66 x 10^-24 grams/amu):

Molecular weight (amu) = (5.34 x 10^-23 grams) / (1.66 x 10^-24 grams/amu)

= 3.22 x 10^-22 amu

Now that we have the molecular weight, we can use it to calculate the molar mass. However, we need to know the number of moles in order to do this. Without this information, it is not possible to calculate the molar mass.

Answer:

i agree

Explanation: