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Answer:

C. Dipole

Explanation:

When a molecule is unevenly charged but overall neutral, for example, one atom has a negative charge, and one has a positive charge, they balance each other out when they bond and are known as a polar molecule. Dipole just means 2 poles (positive and negative).

Answer:

The molarity of a solution is "25 M".

Explanation:

The given values are:

Moles of solute,

= 12.5 g

Volume of solution,

= 500 mL

i.e.,

= 0.5 L

Now,

The molarity will be:

=  [tex]\frac{Number \ of \ moles \ of \ solute}{Volume \ of \ solution}[/tex]

On substituting the values, we get

=  [tex]\frac{12.5}{0.5}[/tex]

=  [tex]25 \ M[/tex]

Answer:

la photosintesis viene de la clorofila de la planta

Answer: [tex]S[/tex] is the limiting reagent

Explanation:

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]    

[tex]\text{Moles of} S=\frac{10.0g}{32g/mol}=0.3125moles[/tex]

[tex]\text{Moles of} Ag=0.700moles[/tex]

[tex]2Ag+S\rightarrow Ag_2S[/tex]  

According to stoichiometry :

1 mole of [tex]S[/tex] require = 2 moles of [tex]Ag[/tex]  

Thus 0.3125 moles of [tex]S[/tex] will require=[tex]\frac{2}{1}\times 0.3125=0.6250moles[/tex]  of [tex]Ag[/tex]

Thus [tex]S[/tex] is the limiting reagent as it limits the formation of product and [tex]Ag[/tex] is the excess reagent.

Answer:

the answer is d.

Explanation:

because metals are refers to natural elements that are hard, shiney, opaque, and dense. nonmetals implies thise chemical substances that are soft, non-shiney, transparent and brittle.

Answer:

The original U.S. voting system had some similarities with that of Athens. In Athens, every citizen could speak his mind and vote at a large assembly that met to create laws. Citizens were elected to special councils to serve as organizers, decision-makers, and judges. The Greek idea of democracy was different from present-day democracy because, in Athens, all adult citizens were required to take an active part in the government. ... This form of government is called direct democracy. The United States has a representative democracy.

Answer:Attemted Failed

Maybe try to search

In a different way like:

what is the ingredient of cake

Instead of

how to make Cake

Answer:

A

Explanation:

Answer:

CH4(g) +2O2____ CO2(g) +2H2O (l)

Answer: Hence, the approximate molecular weight of the poymer is 64106 g/mol

Explanation:

[tex]\pi=CRT[/tex]

where,

[tex]\pi[/tex] = osmotic pressure of the solution = 2.012 mm Hg =  0.0026 atm

i = Van't hoff factor = 1 (for non-electrolytes)

Mass of solute (polypeptide) = 1.8274 g  

Volume of solution = 274 mL

R = Gas constant = [tex]0.0821Latm/Kmol[/tex]

T = temperature of the solution = [tex]31.40^0C=(273+31.40)K=304.4K[/tex]

Putting values in above equation, we get:

[tex]0.0026=\frac{1.8274 g\times 1000}{M\times 274ml}\times 0.0821\times 304.4[/tex]

[tex]M=64106g/mol[/tex]

Hence, the approximate molecular weight of the poymer is 64106 g/mol

Answer: a) No, both are different.

b) Ramesh- 9.9%

  Sarika - 10%

Explanation:

According to the solution prepared by Ramesh,

Mass of sugar he took (Solute) = 10 g

Mass of water he took (Solvent) = 100 g

Thus Mass % of the solution =

According to the solution prepared by Sarika,

Mass of sugar she took (Solute) = 10 g

Mass of Solution she took  = 100 g

Thus Mass % of the solution =

Explanation:

Answer:

B. Molarity will decrease

Explanation:

Molarity is one of the measures of the molar concentration of a solution. It is calculated by dividing the number of moles of the solute by the volume of the solvent. This means that the higher the amount of solute in relation to the volume of solvent, the higher the molarity of that solution.

In essence, adding water to a solution dilutes it i.e it increases the solvent's volume in relation to the solute, causing the molarity to decrease. In a nutshell, diluting a solution (by adding water or more solvent) causes the molarity of such solution to decrease. For example, if water is added to a 0.70 molar solution of CuSO4, the molarity of the solution will DECREASE.

Answer:

TYPES OF HEATING: There are three types of heat transfer: conduction, convection, and radiation.

OCEAN ANSWER: Ocean currents are driven by a range of sources: the wind, tides, changes in water density, and the rotation of the Earth. The topography of the ocean floor and the shoreline modifies those motions, causing currents to speed up, slow down, or change direction.

Explanation:

the answer is basicly the person who answered above me

Explanation:

Answer: C is the answer

Answer: Its B.

Explanation:

i cant quite explain

Answer:

D.

the sum of the masses.

Explanation:

Answer:

The anions that can act as bases (conjugate bases of weak acids) have the capability to hydrolyse water and produce OH− ions. Cl−, Br−NO−3, SO2−4 are all conjugate bases of strong acids that don't have the capability to hydrolyse water and so they aren't basic.

Explanation:

Answer:

A

Explanation:

Well, the human skeletal system produce red blood cells into and for the body.

Answer:

d

Explanation:

can you help me with my question In the extended simile of the underlined passage from Paragraph 15 of "A Wagner Matinee," the narrator makes an observation about the soul that aring rokol been A. it is like a strange moss on a dusty shelf that, with excruciating suffering, can wither and die y for I the be B though after excruciating suffering it may seem to wither, the soul never dies, C. excruciating, interminable suffering that goes on for half a century can kill the soul.

Answer:

it's O2 since the oxygen has 6 valence electrons and it can make 2 covalent bonds

Answer:

we say it has a speed of 2m/s

Answer:

243.15 K y -22 F

Explanation:

Para convertir la temperatura desde grados Celsius (°C) a kelvin (K) se debe sumar 273.15 K:

K = °C + 273.15 = -30°C + 273.15 K = 243.15 K

Para convertir desde grados Celsius (°C) a Fahrenheit (F), se multiplica por 9/5 y se suma 32, como sigue:

F = (9/5 x °C) + 32 = (9/5 x (-30°C)) + 32= -22 F

Por lo tanto, una temperatura de -30°C corresponde a 243.15 Kelvin y -22 grados Fahrenheit.

Answer:

B. An Arrhenius acid increases [OH–] in the Solution

Answer:

An Arrhenius acid increases [H+] in the solution.

Explanation:

i just took the test and this was the answer-

The T in the equation G = H - TS is the temperature in kelvins at which the reaction is happening. The correct option is A.

Temperature is the measurement of the coldness or hotness of a body. The SI unit of the temperature is kelvin and Celsius. The high-temperature regard hotness and the low temperature means a cold area.

G = H – TS is the equation to calculate Gibbs free energy.

Where G = Gibbs free energy

H = enthalpy

T = temperature

S = entropy

Gibbs free energy is the total amount of energy that is taken to do the work in a closed system. The entropy is the total amount of energy that is not useful for work. The temperature is the variable in this equation.

Thus, the correct option is A. The temperature in kelvins at which the reaction is happening.

To learn more about temperature, refer to the link:

https://brainly.com/question/4002787

#SPJ2

Answer:

Noble gas

Explanation:

Noble gases are complete octets ( have 8 valence electrons) Helium is a member of this family.

Answer:

26.83333

Explanation:

Answer:

No region is safe from flooding. All 50 states are subject to flash floods.[1]

Flash floods can bring walls of water from 10 to 20 feet high.[2]

A car can be taken away in as little as 2 feet of water.[3]

To stay safe during a flood, go to the highest ground of floor possible. If your skin comes in contact with flood water, make sure to wash it with soap and disinfected water because the contents are unknown.[4]

Flooding is caused by spring thawing (snow and frozen grounds melting in the spring), heavy rains, snow melt runoffs, flash floods, and mudflows.[5]

Floods are the most widespread natural disaster aside from wildfires. 90% of all U.S. natural disasters declared by the President involve some sort of flooding.[6]

In preparation for a flood, it is important to stock up on first aid items, non-perishable foods, 3 gallons of water per person for 3 days, battery operated radio for weather reports, extra batteries, personal hygiene necessities.[7]

Based on Floodsmart, a 2,000 square foot home undergoing 12” of water damage could cost more than $50,000.[8]

Since flood damage is almost never covered by homeowners insurance, flood insurance is important for people living in high-risk flood zones.[9]

To stay safe during a flood, go to the highest ground of floor possible. If your skin comes in contact with flood water, make sure to wash it with soap and disinfected water because the contents are unknown.[10]

Communities particularly at risk are those located in low-lying areas, near water, or downstream from a dam.[11]