WILL DO ANY THING TO GET A HELPWhich type of wind occurs over a small area?

Question 3 options:

polar easterlies


the Coriolis effect


trade winds


sea breezes

Answer:

Molarity of 40 ml of NaoH is 0.3125 mL

Explanation:

As we know  

Molarity of acid *  volume of acid = molarity of base * volume of base

Substituting the given values, we get  

[tex]0.5 * 25 = X* 40 \\X = \frac{0.5*25}{40} \\X = 0.3125[/tex]

Molarity of 40 ml of NaoH is 0.3125 mL

Answer:

D. 7-methyl-3-octyne

Explanation:

1) Identify the parent chain and name it like an alkane.

• The longest chain of carbons, which consists of the functional group (which is the alkyne group in this case: C≡C).

• There are 8 carbons in the longest chain, so it is called an octane.

2) Now, identify the location of the functional group.

• The location number of the functional group should be as low as possible. Thus although we could count from the right, we start counting from the left since the functional group is closer to the left. From the left, the functional group would be at carbon 8 while from the left, it is on carbon 3.

• Replace 'ane' with 'yne' in octane for the alkyne group.

• This would give us 3-octyne.

3) Lastly, add in the name of the branch.

• Here we have one branch, -CH₃. This is read as methyl.

• Identify the location number of the branch by counting the number of carbons in the same direction as when we counted the location number of the functional group. The methyl branch has a location number of 7.

• Adding the name of the branch before the parent chain, we would arrive at 7-methyl-3-octyne as the IUPAC name of the alkyne.

Further Explanation:

A) This option is incorrect as there are only 8 carbons in the parent chain. Although there are 9 carbons in total, the 9th carbon is taken care of in '7-methyl'.

B) Location number of the functional group should be as low as possible, so start counting the number of carbons from the left!

C) Since the functional group is an alkyne, the word 'octane' should be 'octyne' instead.

Answer:

Do Nothing

Explanation:

Charges are transferred by friction when two different types of bodies are rubbed together. This is known as charging by friction.

However, when two materials of the same type are rubbed together, no charge is transferred from one object to the other hence there is no transfer of charges by friction and none of the two glass rods are charged.

Therefore, when one of the glass rods is brought close but does not touch the pith ball, nothing happens.

Answer:

Gravity

Explanation:

Sir Isaac Newton was an English mathematician and mathematician and physicist who lived from 1642-1727. The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature.

Answer:

A. Gravity

Explanation:

because Isaac Newton published a comprehensive theory of gravity in 1687. Though others had thought about it before him, Newton was the first to create a theory that applied to all objects, large and small, using mathematics that was ahead of its time.

Answer:

Concrete

Explanation:

the Answer is             502 Joules

Answer:

The molarity of MgCl₂ in water is 0.088 mol/L.

Explanation:

The molarity of MgCl₂ can be calculated as follows:

[tex] C = \frac{\eta}{V} = \frac{m}{MV} [/tex]

Where:

C: is the molarity =?

η: is the number of moles of MgCl₂ = m/M

V: is the volume of water = 500 mL = 0.500 L

m: is the mass of MgCl₂ = 4.18 g

M: is the molar mass of MgCl₂ = 95.211 g/mol

Hence, the molarity is:

[tex] C = \frac{m}{MV} = \frac{4.18 g}{95.211 g/mol*0.500 L} = 0.088 mol/L [/tex]

Therefore, the molarity of MgCl₂ in water is 0.088 mol/L.

I hope it helps you!

Answer:

c)C3H4

Explanation:

Answer: C. C3H4

Explanation:

I got it wrong and castle learning showed me the answer

Answer:

Final temperature = [tex]43.53^{\circ} C[/tex]

Explanation:

Given that,

Heat added, Q = 250 J

Mass, m = 30 g

Initial temperature, T₁ = 22°C

The Specific heat of Cu= 0.387 J/g °C

We know that, heat added due to the change in temperature is given by :

[tex]Q=mc\Delta T\\\\Q=mc(T_2-T_1)\\\\\dfrac{Q}{mc}=(T_2-T_1)\\\\T_2=\dfrac{Q}{mc}+T_1[/tex]

Put all the values,

[tex]T_2=\dfrac{250}{30\times 0.387}+22\\\\=43.53^{\circ} C[/tex]

So, the final temperature is equal to [tex]43.53^{\circ} C[/tex].

B) increasesAnswer:

Explanation:

As the concentration of a KOH solution increases, the number of moles of HCl needed to neutralize the KOH solution increases. Therefore, the correct option is option B.

The World System representing Units (SI) uses a mole (symbol mol) as the unit of material amount. How many fundamental entities of a particular substance are present in an object and sample is determined by the quantity of that material. An elementary entity can be a single atom, a molecule, a pair of ions, an ion pair, even a subatomic particle like a proton depending on the makeup of the substance.

For instance, although having differing volumes and masses, ten molecules of liquid (a chemical compound) because 10 moles of mercurial (a chemical element) both have the same quantity of substance, because the mercury has exactly one atom every every molecular structure of the water. As the concentration of a KOH solution increases, the number of moles of HCl needed to neutralize the KOH solution.

Therefore, the correct option is option B.

To know more about mole, here:

https://brainly.com/question/15209553

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Answer: Neutron has no charge, electron has a charge and mass. Neutron occurs inside the nucleus where electron is seen outside the nucleus.

Explanation:

Answer:

612.2kJ are produced

Explanation:

Based on the reaction:

2P + 5Cl₂ → 2PCl₃  + 886.0kJ

When 2 moles of P react with an excess of chlorine 886.0kJ are produced (That is 886.0kJ / 2mol P).

To solve this question we must use the last statement as follows:

1.382mol P * (886.0kJ / 2mol P) =

34950 J of energy is required to change 75 grams of copper at 35 degrees Celsius to liquid copper at 1200 degrees Celsius.

The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.

It is a measure of how much energy it takes to raise the temperature of a substance. It is the amount of heat necessary to raise one mass unit of that substance by one temperature unit.

It is given by the formula -

                                                  Q = mcΔT

where, Q = amount of heat

m = mass

c = specific heat

ΔT = Change in temperature

Given,

Mass of copper = 75g

ΔT = ( 1200 - 35) = 1165⁰C

c = 0.4 J/g ⁰C

Q = mcΔT

= 75 × 0.4 × 1165

= 34950 J

Therefore, 34950 J of energy is required to change 75 grams of copper at 35 degrees Celsius to liquid copper at 1200 degrees Celsius.

Learn more about Specific heat, here:

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Answer:

An F1 offspring could produce four types of gametes, RY, Ry, rY, and ry. The F2 generation supports the independent-assortment model and refutes the linkage model.

Explanation:

Answer:

.biology and maybe physics

Answer:

Biologist

ExplanationBiologist Unlike the above type of scientist, geoscientists’ work involves exploring the earth and its internal environment. They study the composition, structure, and processes of the earth by being indoors and outdoors. They contribute to the discovery of mines, petroleum deposits, minerals, and other aspects of the earth.

Answer:

[tex]V_2=0.87L[/tex]

Explanation:

¡Hola!

En este caso, al considerar la información dada, inferimos que este problem se resuelve aplicando la ley de Charles, dado que tenemos una relación entre el volume y la temperatura:

[tex]\frac{V_2}{T_2}=\frac{V_1}{T_1}[/tex]

Así, despejamos V2 (volumen final) y obtenemos:

[tex]V_2=\frac{V_1T_2}{T_1}\\\\V_2=\frac{0.5L*473.15K}{273.15K}\\\\V_2=0.87L[/tex]

Saludos!

Answer:

[tex]\boxed {\boxed {\sf x \approx 1.34 \ atm}}[/tex]

Explanation:

Since we are dealing with temperature and pressure, we must use Boyle's Law. This states that the pressure is inversely proportional to the volume. The formula is:

[tex]P_1V_1=P_2V_2[/tex]

Where P is the pressure and V is the volume.

We know the original pressure (P₁)  of the gas is 1.20 atmospheres and the volume (V₁) is 2.45 liters.

[tex]1.20 \ atm * 2.45 \ L = P_2V_2[/tex]

We also know the gas is contracted to a new volume of 2.20 liters (V₂) , but we do not know the pressure (P₂). We can use x.

[tex]1.20 \ atm *2.45 \ L = x * 2.20 \ L[/tex]

We can solve the left side of the equation and multiply.

[tex]2.94 \ atm *L= x*2.20 \ L[/tex]

We are trying to find the new pressure (x), so we must isolate the variable. It is being multiplied by 2.20 liters. The inverse of multiplication is division, so we divide both sides by 2.20 L.

[tex]\frac {2.94 \ atm *L}{2.20 \ L}=\frac{x*2.20 \ L}{2.20 \ L}[/tex]

[tex]\frac {2.94 \ atm *L}{2.20 \ L}=x[/tex]

The units of liters cancel.

[tex]\frac {2.94 \ atm}{2.20 \ }=x[/tex]

[tex]1.33636363636 \ atm =x[/tex]

The original measurements have 3 significant figures, so our answer should have the same. For the number we found, that is the hundredth place.

The 6 in the thousandth place tells us to leave the 3 in the hundredth place.

[tex]1.34 \ atm \approx x[/tex]

The new pressure is approximately 1.34 atmospheres.

Answer:

A; deciduous

Explanation:

Trees that lose all of their leaves for part of the year are known as deciduous trees. Those that don't are called evergreen trees. Common deciduous trees in the Northern Hemisphere include several species of ash, aspen, beech, birch, cherry, elm, hickory, hornbeam, maple, oak, poplar and willow

Answer:

the answer is decidous trees

Answer:

Bases

Explanation:

Most soaps fall under the base category as they are slippery and will taste bitter if you taste it (DONT TRY IT THO).

Answer:

im not sure

Explanation:

Answer:

The answer is gamma rays.

Explanation:

Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies on the electromagnetic spectrum.

Answer:

The picture below is an example of a food chain.

Explanation:

The bug (can't tell which one by the picture) eats the grass, the frog eats the bug, the snake eats the frog, and the eagle eats the snake.

Answer:

3040 mmHg

Explanation:

Here

we have to convert 4.00 atm to mmHg

As we know that

The number of atm in 1 mmHg is 0.0013157895567935

Now there is 4.00 atm So, in mmHg it would be

And, according to this, the working is given below:

= 4 ÷ 0.0013157895567935

= 3,039.99

= 3040 mmHg

Hence, the last option is correct

And, the same is relevant and considered too

Answer:

First Blank: 656.3 kJ

Second Blank: Endothermic

Explanation:

Edge 21'

Answer:

1.  656.3

2.  endothermic

Explanation:

Answer:

i think it is chemical wait no physical

Explanation:

Forming an Ion Ionic bonds are a class of chemical bonds that result from the exchange of one or more valence electrons from one atom, typically a metal, to another, typically a nonmetal. This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond.

Answer:

jkrifhcuhixjck

gvudd

Explanation:

dugucdsorfooggigj

a CUCO3(s) + ( I don't have the symbol on my phone ) delta CUo(s) + CO2(g)

b NH4NO3➡️ HNo3 + H2O

c. Ba(OH)2+CO2 ➡️ BaCO3+H20

d Na +H20 ➡️NaOH +h2

Explanation:

I think this should be it , I think that 8s the symbol for hydrogen gas if its not correct I'm sorry

Answer:

1.204 × 10^24 formula units

Explanation:

Using the following formula to convert mass of iron (III) chloride to moles;

mole = mass/molar mass

Molar mass of FeCl3 = 56 + 35.5(3)

= 56 + 106.5

= 162.5g/mol

Mole = 325/162.5

mole = 2mol

Next, to calculate the formula units of FeCl3, we multiply the number of moles of FeCl3 by Avagadro number (6.02 × 10^23)

Formula units of FeCl3 = 2 × 6.02 × 10^23

12.04 × 10^23

= 1.204 × 10^24 formula units.