2. Which weather instrument is used to measure wind speed?

Answers

Answer 1

gao yin sheng, zhong yin sheng and the other shengs

Answer 2
Anemometer is an instrument used to measure wind speed

Related Questions

Which of these statements is true about heat?

Answers

Answer:

Explanation:

what are the statments i can't help till i have the posable answers

Can I see the questions so I can answer it for you ?

Calculate the number of moles of NaOH in an aqueous solution of 36 cm3 of 0.1 mol dm−3.
PLSS EXPLAIN WHAT YOU DO I DONT GET IT

Answers

Answer: The number of moles of NaOH is 0.0036 moles

Explanation:

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

[tex]\text{Molarity of solution}=\frac{\text{Moles of solute}\times 1000}{ \text{Volume of solution (mL)}}[/tex] .....(1)

Given values:

Molarity of NaOH = [tex]0.1mol/dm^3=0.1mol/L[/tex]         (Conversion factor: [tex]1L=1dm^3[/tex]

Volume of the solution = [tex]36cm^3=36 mL[/tex]             (Conversion factor: [tex]1mL=1cm^3[/tex]

Putting values in equation 1, we get:

[tex]0.1=\frac{\text{Moles of NaOH}\times 1000}{36}\\\\\text{Moles of NaOH}=\frac{0.1\times 36}{1000}=0.0036mol[/tex]

Hence, the number of moles of NaOH is 0.0036 moles

what is the change of state from gas to liquid

Answers

Vapourization and condensation. the actual 1 shud be vapourization.

calculate the oxidation number of the central atom of FeSO4 7H2O​

Answers

Answer:

[tex]{ \tt{let \: the \: oxidation \: state \: be \: x}} \\ { \bf{x + sulphate \: ion+ water = overall \: charge}} \\ \\ \\ { \tt{x + ( - 2) + 0 = 0}} \\ \\ { \tt{x = + 2}} \\ { \tt{oxidation \: state = + 2}}[/tex]

Oxidation state is +2

WHAT IS THE DIFFERENCE BETWEEN HALF CELL REACTION AND FULL CELL REACTION​

Answers

Answer:

It is the amount of energy needed to move an electric charge across a cell

Explanation:

Thank you so much !!!!!!!!!!!!!!!

is radiation beneficial or harmful to society explain why

Answers

Answer:

Radiation isn't beneficial to society .Radiation damages the cells that make up the human body. Low levels of radiation are not dangerous, but medium levels can lead to sickness, headaches, vomiting and a fever. High levels can kill you by causing damage to your internal organs. It's difficult to treat high radiation exposure.

Explanation:

Exposure to very high levels of radiation, such as being close to an atomic blast, can cause acute health effects such as skin burns and acute radiation syndrome (“radiation sickness"). It can also result in long-term health effects such as cancer and cardiovascular disease.

Radiation is both harmful and beneficial, but when we analyse it is found that harms overweight benefits. Radiation can be used as a form of energy (in nuclear plants), but an accident or malfunction in it can lead to death and injury of humans. Also, it is really difficult to dispose the used devices.

A molecule has four bonded atoms around a central atom. The central atom does not have any lone pairs of electrons. What is the geometry of the molecule?

Answers

Answer:

Tetrahedral. Tetra- signifies four, and -hedral relates to a face of a solid; “tetrahedral” literally means “having four faces. ” This shape is found when there are four bonds all on one central atom, with no lone electron pairs. In accordance with the VSEPR theory, the bond angles between the electron bonds are 109.5o ...

There are two characteristics of molecules, one is geometry and other is shape. Shape is excluding lone pair surrounding the central element and geometry is including the lone pair. Therefore, the geometry of given molecule is tetrahedral.

What is VSEPR theory?

VSEPR stands for valence shell electron pair repulsions. VSEPR theory is used to predict the shape and geometry of molecules on the basis of valence electrons pairs that are present around the central element of the molecule.

According to VSEPR theory, Lone pair lone pair repulsion is greater than bond pair bond pair repulsion. There are so many limitations of VSEPR theory. There is a repulsion between bond pair electrons and lone pairs present on the central element.

A molecule has four bonded atoms around a central atom. The central atom does not have any lone pairs of electrons. The geometry of such molecule is Tetrahedral. Geometry does not include lone pair on central atom.

Therefore, the geometry of given molecule is tetrahedral.

To know more about VSEPR theory, here:

https://brainly.com/question/19582124

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A student wants to make a 0.600 M aqueous solution of barium sulfate, BaSO4, and has a bottle containing 12.00 g of barium sulfate. What should be the final volume of the solution?


Find the numerical answer for this question and make sure to include the following:


What is the formula for molarity?

What is the molar mass for barium sulfate?

When you give your numerical answer, what are the correct significant figures and how do you know that is the correct amount?

Need this ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer: The volume of the solution is 85.7 mL

Explanation:

Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L. The formula used to calculate molarity:

[tex]\text{Molarity of solution}=\frac{\text{Given mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (mL)}}[/tex] .....(1)

We are given:

Molarity of solution = 0.600 M

Given mass of [tex]BaSO_4[/tex] = 12.00 g

We know, molar mass of [tex]BaSO_4=[(1\times 137.33)+(1\times 32.07)+(4\times 16)]=233.4g/mol[/tex]

Putting values in equation 1, we get:

[tex]0.600=\frac{12.00\times 1000}{233.4\times \text{Volume of solution}}\\\\\text{Volume of solution}=\frac{12.00\times 1000}{233.4\times 0.600}=85.68mL=85.7mL[/tex]

The rule of significant number that is applied for the problems having multiplication and division:

The least number of significant figures in any number of the problem determines the number of significant figures in the answer.

Here, the least number of significant figures is 3 that is determined by the number, 0.600. Thus, the answer must have these many significant figures only.

Hence, the volume of the solution is 85.7 mL

ii) Distinguish between temporary and permanent hard water?

Answers

Explanation:

temporary water is call carbonate hardness

parmanent water is call non-carbonate hardness

Temporary hardness is caused by the presence of dissolved bicarbonates of calcium, magnesium, and other heavy metals and the bicarbonates of iron.,The salts responsible for temporary hardness are Ca(HCO3)2 , Mg(HCO3)2

Permanent hardness It is due to presence of dissolved chlorides and sulphates of calcium, magnesium, iron and other heavy metals

Help please and thank you

Answers

lioh(aq) + hbr(aq) ----> h2o(l) + libr(aq)
Hope it helps


1-bromo-1-2-diphenylpropane

Answers

Answer:

Aldehyde

Explanation:

1-bromo-1-1diphenylpropane

2 A certain gas of 25 g at 25°c and 0.65 atm occupies a volume of 23.52L Determine the molecule mass of the gas.​

Answers

Answer:

[tex]{ \bf{PV= \frac{m}{M} RT}} \\ \\ { \tt{(0.65 \times 23.52) = \frac{25}{M} \times 0.081 \times (25 + 273)}} \\ \\ M = 39.5 \: g[/tex]


Please help please help

Answers

Answer:

The mass percentage of chlorine is 60.66 % chlorine in the compound sodium chloride.

Explanation:

Charles's law is a gas law relates volume to temperature. The law is named after (1) _____________________, who was a French inventor and scientist. He found through his experiment the volume of a gas increases linearly with an increase in the (2) _____________________. Shrinking of an inflated balloon and a bicycle tire in a very low temperature show the decrease of (3) ______________ which explains that the relationship of volume and temperature is directly related at constant (4) ______________. For a given sample of gas under two different conditions at a constant pressure, the equation can be written as (5) ________________________.

Answers

Answer:

1. Jacques Charles

2. Temperature

3. Volume

4. Pressure

5. [tex] \frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}[/tex]

Explanation:

Jacques Alexandre-César Charles was a French mathematician, scientist, inventor, balloonist, aeronaut, and physicist who was born on the 12th of November, 1746 in Beaugency, France and died on the 7th of April, 1823 in Paris, France. He was famously known for his invention of the first hydrogen balloon in 1783 and the discovery of Charles Law.

Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Charles' law is given by the formula;

[tex] VT = K[/tex]

[tex] \frac{V_{1}}{T_{1}} = \frac{V_{2}}{T_{2}}[/tex]

Where;

V1 and V2 represents the initial and final volumes respectively.T1 and T2 represents the initial and final temperatures respectively.

The nth shell holds a minimum number of 2n2 electrons
True
False
Other:

Answers

Answer: The statement the  [tex]n^{th}[/tex] shell holds a minimum number of [tex]2n^{2}[/tex] electrons is true.

Explanation:

The alphabet 'n' denotes the principal quantum number whose value can be equal to 1, 2, 3, and so on but can never be zero.

Basically, 'n' is the number of shell of an atom and total number of orbitals present in a shell is [tex]n^{2}[/tex].

Each orbital can hold up to a maximum of wo electrons. Hence, the [tex]n^{th}[/tex] shell can hold a minimum number of [tex]2n^{2}[/tex] electrons.

Thus, we ca conclude that the statement the  [tex]n^{th}[/tex] shell holds a minimum number of [tex]2n^{2}[/tex] electrons is true.

What would happen to the entropy in the reaction 203(9) ► 302(g)?

Answers

Answer:

Enthalpy and entropy. ... What would happen to the entropy in the reaction 2O3(g) 3O2(g)? It increases

What would happen to the entropy in the reaction 2O3(g) --> 3O2(g)?

It increases.

What is ΔH if 5.5 grams H₂O(l) is formed from this reaction? ( molar mass of H₂O = 18)
H₂(g) + ½ O₂(g) → H₂O(l) ∆H = -285.8 kJ

Answers

Answer:

–87.3 KJ.

Explanation:

The equation for the reaction is given below:

H₂(g) + ½O₂(g) —> H₂O(l) ∆H = -285.8 kJ

Next, we shall determine the mass of H₂O produced from the balanced equation. This can be obtained as follow:

Molar mass of H₂O = 18 g/mol

Mass of H₂O from the balanced equation = 1 × 18 = 18 g

SUMMARY:

From the balanced equation above,

When 18 g of H₂O was produced, ∆H was –285.8 KJ.

Finally, we shall determine ∆H when 5.5 g of H₂O is produced. This can be obtained as illustrated below:

From the balanced equation above,

When 18 g of H₂O was produced, ∆H was –285.8 KJ.

Therefore, 5.5 g of H₂O will produce ∆H of = (5.5 × –285.8) / 18 = –87.3 KJ

Thus, the ∆H when 5.5 g of H₂O was produced is –87.3 KJ.

Place the following in increasing atomic radius:
Least to most

Answers

Explanation:

least= Li,F,N,He,Ca,O

medium=N,Br,K,Ne,Zn,Fr

most= F,I,K,Kr,Br,Ga

Two students were discussing the Mono Lake ecosystem. The first student said, "For a 20-kilogram (kg) coyote to survive, it takes around 200 kg of Wilson's phalaropes, 400 kg of brine shrimp, and 800 kg of algae!" The second student said, "No, I think it takes even more than that." 1. Which student is correct? What is your reasoning?​

Answers

Answer:

The second student is right.

Explanation:

The coyote feed on not only phalaropes but many other organisms present in the environment for its survival. There are many other organisms present in the ecosystem such as mice, squirrel, cactus fruit etc. The coyote feeds on phalaropes, the phalaropes feeds on brine shrimp and the brine shrimp feeds on algae for its survival so in this way the ecosystem moves in the forward direction. The coyote feeds on phalaropes so the energy that is present in phalaropes transferred into coyote which only 10 % while the remaining is released in the atmosphere in the form of heat energy.

what is the mass of alumunium will be completly oxidized by 44.8 L of oxygen to produce Al2o3 at STP?​

Answers

Answer:

Therefore, 2 moles of oxygen will be required to oxidize 2.66 moles of oxygen. 72g of Aluminium will be completely oxidized by 44.8 lit of oxygen at STP.

please help in all 3 questionnn ​

Answers

Answer:

Explanation:

a) photosynthesis

b) Substances used: water, sun, gas and nutrients. Products: glucose and flowers

c) there will be no sunlight or no open environment

When 27.50 liters of oxygen gas reacts with excess hydrogen gas at STP how many grams of water is produced?

Answers

Answer: The mass of water produced is 44.28 g

Explanation:

We are given:

Volume of oxygen gas = 27.50 L

At STP conditions:

22.4 L of volume is occupied by 1 mole of a substance

27.50 L of oxygen gas will be occupied by = [tex]\frac{1mol}{22.4L}\times 27.50L=1.23mol[/tex]

The chemical equation for the formation of water follows:

[tex]2H_2+O_2\rightarrow 2H_2O[/tex]

By the stoichiometry of the reaction:

If 1 mole of oxygen gas produces 2 moles of water

So, 1.23 moles of oxygen gas will produce = [tex]\frac{2}{1}\times 1.23=2.46mol[/tex] of water

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}[/tex] ......(1)

Molar mass of water = 18 g/mol

Plugging values in equation 1:

[tex]\text{Mass of water}=(2.46mol\times 18g/mol)=44.28g[/tex]

Hence, the mass of water produced is 44.28 g

what is the mass of a moles of Mg(OH)2​

Answers

Answer:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Mg(OH)2, or 58.31968 grams.

tolong saya jawab yahhh​

Answers

(i) Liang - liang stoma lebih banyak di bahagian bawah daun berbanding di bahagian atas permukaan daun.

(ii) Struktur X berfungsi mangawal pembukaan dan penutupan liang stoma

Which were Lenin's actions before and during the Russian Revolution? Check all that apply.
He led the fight against Germany
He supported the ideology of Marxism
He opposed the provisional government.
He opposed the tsar and was exiled.
He supported the Duma.
He led the Bolsheviks.
He supported inequality.


The correct answe is:

• He supported the ideology of Marxism.
• He opposed the provisional government.
• He opposed the trar and was. exiled.
• He led the Bolvsheviks. ​

Answers

Answer:

He supported the ideology of Marxism.

He opposed the tsar and was exiled.

He led the Bolsheviks.

Explanation:

Lenin was Russian Revolution political theorist. He served as first founding head of government of Soviet Russia. He supported the ideology of Marxism and opposed Tsar.

Can metals have covalent radius and van der Waal's radius instead of metallic radius?​

Answers

Explanation:

Whether you choose to use van der Waals radii or metallic radii as a measure of the atomic radius, for metals the ionic radius is smaller than either, so the problem doesn't exist to the same extent. It is true that the ionic radius of a metal is less than its atomic radius (however vague you are about defining this).

Whether you choose to use van der Waals radii or metallic radii as a measure of the atomic radius, for metals the ionic radius is smaller than either, so the problem doesn’t exist to the same extent. It is true that the ionic radius of a metal is less than its atomic radius (however vague you are about defining this).

HOPE SO IT HELPS YOU

what mass of small stones would be needed to make the strongest concrete? give a reason for your awnser.

Answers

Answer:

For a good consert mix aggregate needed to the clean hard strong partical free of absorb chemicals or coating clay and other fine materials

Which is a potential benefit of genetic engineering in agriculture? higher levels of toxins disruption of other genes increased size of fruits or vegetables reduced effectiveness of pesticides

Answers

Answer:

increase in the size of fruits and vegetables

Answer:

increased size of fruits or vegetables

Explanation:

In the diagram shown, what is occurring at the section marked 4?
- Temperature
Heat Energy
O Melting
O Freezing
condensation vaporization

Answers

You need to show an image of the diagram or else nobody knows what you’re referring to.

Cooling the concentrated ammonia and hydrochloric acid before carrying out the experiment increased the time taken for the white cloud to form​

Answers

Hope it helps you :)
Other Questions
PLZZZZ HELPP MEE ANYONE!!!! 2. Mr. Theorem writes the expression 6^2/(2m) on the board. What is the value of this expression when the value of m = 3? The clause too, reprobating the enslaving the inhabitants of Africa, was struck out in complaisance to South Carolina and Georgia, who had never attempted to restrain the importation of slaves, and who, on the contrary, still wished to continue it. Our northern brethren also, I believe, felt a little tender under those censures; for though their people had very few slaves themselves, yet they had been pretty considerable carriers of them to others. This statement suggests that_ Which phrase is the best definition of matter? A. The smallest piece of a chemical compound that retains the properties of the compound B. A substance that cannot be divided into smaller pieces C. Something that occupies a volume of space and also has mass D. A substance that can change in both volume and shape SUBMIT Leonardo has 140 in his bank account. He also gets an additional $15 each hour Write an equation to represent how much money, y, is in his account after x, hours. 3. Why do you think your society is developing? Write two reason Identify the best drying agent or process for each described purpose. Removal of small amounts of water from a polar solvent____. Removal of visible pockets of water from an organic solvent____. Storage of solvents or other materials in a desiccator_____. A group of high school seniors were surveyed on their interests. Of those surveyed, 16 students said they enjoy reading, and 14 said they enjoyed writing. What additional information would you need to know in order to determine how many students said they enjoy both reading and writing?a) The number of students who enjoy reading only. b) The number of students who enjoy writing only. c) The number of students who don't enjoy neither reading nor writing. d) The number of students said they enjoy either reading or writing. PLAY9Organelles are structures within the cell that perform important functions. Which of the following correctly matchesorganelle with its relationship to the whole cell?mitochondria - provides the instructions for making proteinsB nucleus - provides protection to the outside of the cellchloroplasts - trap light energy and change it into food for the cellcell membrane - changes the energy the cell gets from food into a form the cell can use lo Luke's tyre pressure gauge shows a reading which is 8% higher than the actual pressure.What is the actual pressure when Sue's gauge shows 39.42? Do young people these ___ have more free time than they did in the past? Which of the following businesses poses the highest degree of difficulty in e-commerce? Portals and infomediaries Businesses such as Travelocity, and those that sell digital music, and software Businesses that rely on a physical infrastructure Brick and mortar companies Angles measuring 8x 3 and 7x + 18 are supplementary. Find the measure of each angle. (5 points) Let f be a function of two variables that has continuous partial derivatives and consider the pointsA(8, 9),B(10, 9),C(8, 10),andD(11, 13).The directional derivative of f at A in the direction of the vector AB is 9 and the directional derivative at A in the direction ofAC is 2. Find the directional derivative of f at A in the direction of the vector AD.(Round your answer to two decimal places.) Dr. Franklin wants to study the accuracy of eyewitness testimony. He will tell his subjects that they will take a paper and pencil test and have them sign forms to agree to participate. He will then tell them he left their test papers in his office and will be back in a few minutes with them. While he is away, one of his research assistants will run into the room and steal something from the professor's desk and run back out again. Dr. Franklin will then come back in, hand out the test papers, and ask the participants to describe the suspect in detail. Dr. Franklin will explain what occurred after he collects the participants' papers. Th tch ca khi cu c bn knh 3a bng How many solutions does this linear system have? y = 2x 5 8x 4y = 20 one solution: (2.5, 0) one solution: (2.5, 0) no solution infinite number of solution Fremont LLC is looking to purchase new water chlorination equipment. A salesman from Industrial Water Services (IWS) offered water chlorination equipment for $2.1 million. IWS also said that Fremont LLC would not have to pay for the equipment now and can pay after 2 years. While the price offered by a competing saleswoman from AG Enterprises is $1.7 million to be paid now. Fremont LLC's real MARR is 12% per year, and the inflation rate is 3.9% per year. Determine which offer is better. a. AG offer b. IWS offer What restrictions may be necessary to the domain and range of linear equations? A 2 kg stone is dropped from a height of 100 m. How far does it travel in the third second? take g = 9.8 m/s2