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Answer:

Nerve or muscle damage in the eye might cause double vision. Each eye creates its own image of the environment. The brain combines the representations from each eye and perceives them as one clear picture. Damage to the muscles that move the eyes or the nerves that control eye movement can create a double image.

Explanation:

Answer: The new pressure of the balloon is 108 kPa

Explanation:

The combined gas equation is,

[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]

where,

[tex]P_1[/tex] = initial pressure of gas = 105 kPa

[tex]P_2[/tex] = final pressure of gas = ?

[tex]V_1[/tex] = initial volume of gas = 2510000 L

[tex]V_2[/tex] = final volume of gas = 2600000 L

[tex]T_1[/tex] = initial temperature of gas = [tex]122^0C=(122+273)K=395K[/tex]

[tex]T_2[/tex] = final temperature of gas = [tex]150^0C=(150+273)K=423K[/tex]

Now put all the given values in the above equation, we get:

[tex]\frac{105\times 2510000}{395}=\frac{P_2\times 2600000}{423}[/tex]

[tex]P_2=108kPa[/tex]

The new pressure of the balloon is 108 kPa

Answer:

The more optically dense that a material is, the slower that a wave will move through the material. ... So as the index of refraction value increases, the optical density increases, and the speed of light in that material decreases.

Answer:

Existence

Explanation:

Energy is required for anything to occur, without it there would be no 'causality' for things to change from one moment to the next.

Hope this helped!!!

Answer:

Kingdom Monera.

Explanation:

The unicellular organisms the student observed were most likely from the Kingdom Monera because in this kingdom, unicellular organisms are included which are prokaryotic in nature. Monera is a Greek word means "single" is a kingdom that contains organisms that are made up of one cell and having a prokaryotic cell means having no nuclear membrane and we know that bacteria is also a unicellular organism and prokaryotic in nature.

Answer:

True

Explanation:

It would be 2.515 yards. This is because to convert cm into yards, you would need to divide the length value by 91.44 so in your case, it would be 230÷ 91.44 which equals 2.51531.

Hope that helps!

Explanation:

Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced. Thus 6 moles of are produced.

Answer: 6

Explanation:

Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced. Thus 6 moles of are produced.

Answer:

Mass to moles: mass/molar mass=mole

Moles to mass: moles x molar mass = mass

Moles to particles:1mole = 6.022x10^23 particles

Particles to moles: 1 particle =1/(6.022x10^23) mole

Explanation:

Answer:

the  specific heat capacity of the sample is 1011.05 J /kg k

Explanation:

The computation of the  specific heat capacity of the sample is shown below:

Given that

Q=mcΔθ

Now Heat gain by the calorimeter is

= (0.200)×  (4180) × (26.1 - 19) + (0.15) × (390) ×(26.1 - 19)

=6 350.95J

Now

6350.95=(0.0850) × c ×(100-26.1)

c= 6350.95 ÷ ((0.085) × (100 - 26.1))

= 1011.05 J /kg k

Hence, the  specific heat capacity of the sample is 1011.05 J /kg k

Answer:

n = 0.223 mol.

Explanation:

Hello there!

In this case, according to the given information, it is possible for us to approach this problem via the ideal gas law, which involves the pressure, moles, temperature and volume of the gas:

[tex]PV=nRT\\\\[/tex]

Thus, by solving for moles we obtain:

[tex]n=\frac{PV}{RT}[/tex]

Therefore, we plug in the given volume, temperature (in Kelvins) and pressure to obtain:

[tex]n=\frac{0.9atm*8L}{0.08206\frac{atm*L}{mol*K}*(120+273)K} \\\\n=0.223mol[/tex]

Best regards!

Question: Calculate the mass of magnesium chloride you would need to dissolve in 4dm³ of water to

make a 0.9g/dm³ solution.

Answer:

3.6 g

Explanation:

From the question,

Density of magnesium (D) = Mass of magnesium (m)/Volume of magnesium(V)

D = m/V............... Equation 1

Make m the subject of the equation

m = D×V............. Equation 2

Given: D = 0.9 g/dm³, v = 4 dm³

Substitute these values into equation 2

m = 0.9×4

m = 3.6 g.

Hence the mass of magnesium is 3.6 g.

Answer:

0.015 M HNO3 = 0.015 M H3O+ pH = -log(0.015) = 1.82 [OH -] = 1.0 x 10 -14/0.015 M = 6.7 x 10 13 Check: HNO3 is a strong acid, so we expect the pH to be low and the [OH ] to be small

The pH of acid is between 0-7 on pH scale while for base pH range is from 7-14. Thus the pH of 0.015 M HNO3 is  1.82. pH is a unitless quantity

pH is a measurement of amount of hydronium ion H₃O⁺ in a given sample. More the value of hydronium ion concentration, more will be the solution acidic.

On subtracting pH from 14, we get pOH which measures the concentration of hydroxide ion in a given solution. pH depend on the temperature. At room temperature pH scale is between 0 to 14. pH of neutral solution is 7

The concentration of HNO₃ is  0.015 M

Dissociation of HNO3 is

HNO3 +H₂O [tex]\rightarrow[/tex] H₃O⁺+NO₃⁻

So the concentration of   H₃O⁺=0.015 M

Mathematically,

pH=-log[H⁺]

Substituting the values

pH=-log[0.015 ]

     = 1.82

Thus the pH of 0.015 M HNO3 is  1.82

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Answer:

najsbsbsmnshzhskwjzhhsbsbsbsbzbbsnzn

hsnznzkskzjbxbs

gasjhsjsbabakjahajakqjahsvhwksbxbwhsjkxjsjshshshshshhshshshsjshxhsbsbsbsbhshshdbdbbdbdbdhbsjajshshshsjsksksjsjsjjsbsksshshssgsgsbsbvsgsbsjsksjsjxjxjksksjgshkajahsgshsjsjabavsvshwhsggehsjsjsjdnsjajs

Answer:

uhh the Neutron i guess lol you didn't give any choices or explanation

Explanation:

Answer:

pharynx

Explanation:

A single proton has the charge of +1.

A neutron is neutral and has a charge of 0

A single electron has the charge of -1

Since the nucleus contains both protons and neutrons, with neutrons have charge of 0 and protons with +1, the total charge of the nucleus would be 25 * 1 which is +25.

Answer:

25+

Explanation:

25+  = the number of protons in the nucleus

Answer:

Genetic modification

Explanation:

a desired trait from one organism is placed into that of another organism with human intervention.

Answer: They are pollutants when they encourage bacterial growth and loss of oxygen in our rivers and streams, they can be the cause of a very unhealthy ecosystem :( kinda sucks tbh

Explanation:

Answer:

The volume at STP is 41.3mL

Explanation:

To solve this question we must find the volume using the combined gas law. The equation is:

P1V1 / T1 = P2V2 / T2

Where P is pressure, V volume and T absolute temperature of 1, initial state and 2, final state of the gas.

P1 = 718torr

V1 = 47.9mL

T1 = 26°C + 273.15 = 299.15K

P2 = 760torr at STP

V2 = ?

T2 = 273.15K at STP

Replacing:

718torr*47.9mL / 299.15K = 760torr*V2 / 273.15K

41.3mL = V2

Answer:

Requiere que el agua pase por membranas de filtración.

Explanation:

Un purificador de agua que utiliza energía solar es un dispositivo innovador y tecnológico que funciona como una estación de saneamiento básico con capacidad para purificar el agua y eliminar el 99% de virus y bacterias.

El sistema funciona de la siguiente manera: cuenta con bomba, panel solar, cargador y mangueras. La bomba mueve el agua a través del filtro utilizando la energía de la batería que se carga con la energía de la luz solar. Incluso en días con poca exposición al sol, el sistema es capaz de utilizar la energía acumulada de la batería y purificar 1 litro de agua en 1 minuto.

Se trata de una tecnología simple e innovadora que puede ser de gran ayuda en el saneamiento básico de lugares que no contienen agua potable, debido a la facilidad y portabilidad del sistema.

Answer:

The plateaus or horizontal lines on the graph represent the transition between states of the sample. The first plateau represents the melting (or transition from solid to liquid) and the second plateau represents boiling (or transition from liquid to gas).

Explanation:

Answer:

Explanation:

i think c

Answer:

Deletion

Explanation:

A mutation refers to a change in the DNA sequence. This means that the original sequence of bases in the DNA has been altered permanently.

There are three types of DNA mutations;  base substitutions, deletions and insertions.

In the particular case of this question, the original is TTCGATA while the copy is TTGATA. If you look closely at the two, you will notice that the C has been omitted. This is an example of  deletion.

Answer:

Beryllium metal is relatively unreactive at room temperature, particularly in its massive form. Magnesium is more electropositive than the amphoteric beryllium and reacts more readily with most of the nonmetals.

Explanation:

When it comes to the ease with which a positive ion or cation of the metal can form, beryllium is less reactive than magnesium.

The chemical element magnesium has the atomic number 12 and the letter Mg as its symbol. It is a glossy, gray metal with a low melting point, high chemical reactivity, and a low density. It only naturally occurs in mixtures with other elements, just like the other alkaline earth metals, and it almost always has an oxidation state of +2.

At room temperature, beryllium metal is largely non-reactive, especially in its massive form. Magnesium interacts more quickly with the majority of nonmetals because it is more electropositive than amphoteric beryllium.

Due to the electron being removed being in the 3-level rather than the 2-level and being further away from the nucleus's attraction, the first ionization energy of magnesium is lower than that of beryllium.

Thus, When it comes to the ease with which a positive ion or cation of the metal can form, beryllium is less reactive than magnesium.

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One mole of NaOH = 40g NaOH

One mole of NaOH = 40g NaOHso to prepare 1M NaOH we need to dissolve 40g NaOH in water

One mole of NaOH = 40g NaOHso to prepare 1M NaOH we need to dissolve 40g NaOH in wateraccording to the given data,

One mole of NaOH = 40g NaOHso to prepare 1M NaOH we need to dissolve 40g NaOH in wateraccording to the given data,we have 6 moles of NaOH so we need 6 litres of Water olto prepare 1M Solution

Answer:

Liquid water  

Answer:

?

Explanation:

Molarity is the molar concentration of the moles in a solution. The volume of water required for preparing 1.50 M NaCl solution is 1.7 L.

Volume is the number of moles of solute present in a molar concentration of a solution.

Molar concentration is given as,

[tex]\rm Molarity (M) = \dfrac{\text{moles of solute}}{\text{litres of solution}}[/tex]

Given,

Molarity of sodium chloride = 1.50 M

Number of moles of sodium chloride = 2.55 mol

Substituting values in the above equation the volume is calculated as:

[tex]\begin{aligned}\rm Volume &=\rm \dfrac{moles}{molarity}\\\\&= \dfrac{2.55}{1.50}\\\\&= 1.7 \;\rm L\end{aligned}[/tex]

Therefore, 1.7 L of water is required.

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