50 Points Help Me ASAP
change the following to the appropriate unit


1. 9.63 x 10–2 m ==> nm



2. 6.02 x 103 ks ==> s




3. 8.9 x 108 microgram ==> centigram





4. 4.12 x 10–4 Mg ==> g




5. 7.33 x 10 -2 TL ==> dL



6. 0.73 kL => L




7. 5.93 cm3 => m3



8. 498.82 cg => mg

Answers

Answer 1

[tex]\\ \sf\longmapsto 9.63\times 10^{-2}m=9.63\times 10^{-2}\times 10^{-9}m=0.0963\times 10^{-9}m=0.0963nm[/tex]

[tex]\\ \sf\longmapsto 6.02\times 10^3ks=6.03\times 10^6s[/tex]

[tex]\\ \sf\longmapsto 8.9\times 10^8\mu g=8.9\times 10^4cg[/tex]

[tex]\\ \sf\longmapsto 4.12\times 10^{-4}Mg=4.12\times 10^{-1}g=0.412g[/tex]

[tex]\\ \sf\longmapsto 7.33\times 10^{-2}Tl=7.33\times 10dL=73.3dL[/tex]

[tex]\\ \sf\longmapsto 0.73kL=0.73(1000)L=730L[/tex]

[tex]\\ \sf\longmapsto 5.93cm^3=0.00000593m^3[/tex]

Done!


Related Questions

The amount of K O H needed, in grams, in reaction 1 if you want to have 10% excess K O H

Answers

The mass of KOH reacted is 2.576 g. To have a 10% excess KOH, i need 2.833 g of KOH.

The equation of the reaction is;

2 Al(s) + 2 KOH(aq) + 6H20 (l) --------> 2K+ (aq) + 2 Al(OH)4^- (aq) + 3H2(g)

We are told that 1.25 g of Al was used in the reaction, hence;

Number of moles of Al = 1.25 g/27 g/mol = 0.046 moles

To obtain the amount of KOH required for the reaction;

2 moles of Al reacts with 2 moles of KOH

0.046 moles of Al also reacts with 0.046 moles of KOH

Mass of KOH reacted = 0.046 moles of KOH × 56 g/mol = 2.576 g

To have a 10% excess KOH;

Let the needed mass of KOH be x

x =2.576 g + (0.1 × 2.576 g)

x = 2.833 g

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Assuming you start with 1.25 g of pure aluminum, calculate the following:

1) The amount of potassium hydroxide, KOH, in grams, needed to react with all of the 1.25 g of Al. The reaction is: 2 Al(s) + 2 KOH(aq) + 6H20 (1) --->  2K+ (aq) + 2 Al(OH)4^- (aq) + 3H2(g)  2) The amount of KOH needed, in grams, in reaction 1 if you want to have 10% excess KOH.

why copper and chromium having Anamalous electronic configuration?​

Answers

Answer:There are two main exceptions to electron configuration: chromium and copper. See below

Explanation:

These two elements are exceptions because it is easier for them to remove a 4s electron and bring it to the 3d subshell, which will give them a half filled or completely filled subshell, creating more stability.

What is the molarity of a solution that contains 114.4g NaCl (molar mass= 58.44 g/mol) in 1.2 L solution?

Answers

Answer:

1.6 M.

Explanation:

We want to find the molarity of a solution that contains 114.4 g NaCl in a 1.2 L solution.

Recall that molarity is given by:

[tex]\displaystyle \text{M} = \frac{\text{ mols solute}}{\text{ L soln.}}[/tex]

Convert 114.4 g NaCl to mol NaCl using its molecular weight:

[tex]\displaystyle 114.4 \text{ g NaCl} \cdot \frac{1 \text{ mol NaCl}}{58.44 \text{ g NaCl}} = 1.958\text{ mol NaCl}[/tex]

Therefore, the molarity of the solution will be:

[tex]\displaystyle \text{M} = \frac{1.958 \text{ mol NaCl}}{1.2\text{ L soln.}} = 1.6 \text{ M}[/tex]

In conclusion, the molarity of the solution is 1.6 M.

How are physical changes related to state of matter changes?

Answers

Answer:

Changes of state are physical changes. They occur when matter absorbs or loses energy. Processes in which matter changes between liquid and solid states are freezing and melting. Processes in which matter changes between liquid and gaseous states are vaporization, evaporation, and condensation.

hope this helped

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Answers

Answer:

what the model is describing is the molecules. when molecules are tightly packed they form a solid like ice, and when the ice is melting forms a liquid because the molecules are spreading out. when the ice evaporates (gas) the molecules are moving about and are not touching eachother

Do you think more foam will form if the ice cream is added to the glass before the root beer or after the root beer? Explain.

Answers

Answer:This is a very interesting question. I think of it like this. You have a piece off ice floating in the water. Let's say a portion off. It is submerged. No. If this the portion off the sub marched portion has a volume be, it means that the buoyant force will be times the density off water times G. Now this will be equal to the point force, which is equal to the weight off the ice block. Now, once I this ice turns into water, it will still have the same rate. But now its density will be equal to that of water. So it's wait will be saying mass times G. Now you can cancel T on mass is equal to three times rope. Now, this week is this volume and if you notice, row is also the density of water, which means this mass of water contains will help this volume. It means once the ice becomes water, it perfectly fits into this volume, which means the water level's stays exactly the same. It's almost magical, but what happens if there isn't a butt in a bubble? You can think off it in a slightly mathematical way, If you have an air bubble in on Ice Cube, it's total density. Its average density will be less than the density off ice, but an easier way to think about it is like this. You have a piece off ice, which has in a bubble in it on dhe, obviously that it's water here and now. Once the ice melt, the amount of water displaced will be. The volume of the water displaced will equal the weight off the ice. So the what? The water in the ice, if it's exactly in this volume, so it must still be the same. But the answer will be different if you have a great off sandal. If you have a grain of sand, let's say somewhere over here the total density off the ice cube will be larger. The average density on once the ice melt the sand simply false down, which means this ice this piece off ice was further down than it for the lower in the water than it would have been if it was simply made off ice. So to make up for that, when the ice melts, the amount off the volume off the water will be less than the amount of water displaced, so the level of water will decrease if it were if there were a grain of sand in the ice, so you would expect that the water level would tries if, uh, in the case off the air bubble. But it's the identity of baby. It is so small that it simply doesn't count.

Explanation:

Calculate the molarity of each of the following solutions.
1.30 mol of KNO3 in 250.0 mL of solution
0.500 mol of BaCl2 in 100.0 mL of solution
0.195 mol of Na2CO3 in 200.0 mL of solution
7.00 mol of C6H12O6 in 250.0 mL of solution

Answers

Answer:

5.2M, 5M, 0.975M, 28M

Explanation:

M = ( moles × 1000 ) ÷ volume

Molarity is affected by temperature. Its unit is mole/litre. It measure the concentration of any solute in a solution. Thus the molarity of [tex]KNO_{3}[/tex],[tex]BaCl_{2}[/tex],[tex]Na_{2}CO_{3}[/tex] and[tex]C_{6}H_{12}O_{6}[/tex] are 5.2mol/litre, 5mol/litre, 0.97mol/litre, 28mol/litre respectively.

What is molarity?

Molarity can be calculated by dividing  number of moles of solute by volume of solution in liter.

Other concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution

Mathematically,

Molarity= number of moles of solute/volume of solution in litre (1)

1) Molarity of [tex]KNO_{3}[/tex]= {1.30 mol ×(1000ml/l)}÷250.0 mL=5.2mol/litre

2)Molarity of [tex]BaCl_{2}[/tex]= {0.500 mol  ×(1000ml/l)}÷100.0 mL=5mol/litre

3)Molarity of[tex]Na_{2}CO_{3}[/tex]= {0.195 mol   ×(1000ml/l)}÷200.0 mL=0.97mol/litre

4)Molarity of [tex]C_{6}H_{12}O_{6}[/tex] = {7.00 mol  ×(1000ml/l)}÷ 250.0 mL=28mol/litre

Thus the molarity of [tex]KNO_{3}[/tex],[tex]BaCl_{2}[/tex],[tex]Na_{2}CO_{3}[/tex] and[tex]C_{6}H_{12}O_{6}[/tex] are 5.2mol/liter, 5mol/litre, 0.97mol/litre, 28mol/litre respectively.

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Please help me out I have 20 mins, show work !

Answers

Answer:

8)Dinitrogen tetraoxide

9)+5

10)NH4HSO4

Explanation:

please mark me as brainlest

How many different types of elements make up one molecule of potassium perbromate, KBrO4?

Answers

Answer:

3.

Explanation:

potassium

bromine

oxygen

Answer question based on the periodic table entry for gallium.
How many neutrons does gallium have?

a. 70
b. 39
c. 69
d. 31

Answers

The answer for this would be b.39

Answer:

b. 39 Neutrons would be correct.

What is polyethylene?

A.Thermoplastic polymer

B.Electroplastic polymer

C.Thermoplastic monomer

D.Single monomer

Answers

A. Thermoplastic polymer

Explanation:

thermoplastic polymer

Himalayan pink salt has a density of 1.03 g/mL.

Calculate the volume, in liters (L), per kg of that salt.

Answers

The volume, in liters, per kg of the Himalayan pink salt would be 0.97 L

Recall that: density = mass/volume

Hence: volume = mass/density

In this case, the density of the Himalayan pink salt is 1.03 while the mass we are working with is 1 kg.

1 kg is equivalent to 1000 g

Thus: volume = 1000/1.03

                           = 970.87 mL

Divide by 1000 to convert to L

                        970.87/1000 = 0.97 L

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What is the name of this compound?

Answers

Answer:

hexagon

Explanation:

Answer:

um how is this a question? is there no info on how many protons neutrons electrons and what elements are in the compound. how do you find out a compound if you don't know what the elements in it are

Draw an energy diagram showing the process involved in the production of an absorption spectrum. Use this diagram to help you construct a step-by-step written description of what is happening at the atomic level. Make sure to label the axis, energy levels, and cause of the electron transition.

Answers

Hydrogen molecule splits up into two atomsThese electrons absorb energy and get excited.When these excited electrons came back to ground state they emit electromagnetic radiation of discrete frequencies.

At the atomic level, electrons absorb a particular wavelength of energy and move from a lower to a higher energy level.

In the absorption spectrum, energy is absorbed causing a specie to move from a lower to a higher energy level. This is shown in the diagram attached to this answer.

At the atomic level, electrons absorb a particular wavelength of energy and move from a lower to a higher energy level.

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1) Is a moth bursting out of cocoon a chemical or physical change? (I put chemistry because i didn't know what else to put) 2) Is playing with purple and green slime chemical or physical change ​

Answers

Answer:

1)A moth bursting out of a cocoon is neither a chemical or physical change, it's a biological change.  If I had to chose it would be a physical change though.  Not to sure...

2)Playing with slime is a physical change.  

Explanation:

1)The reason why I would chose physical change is because the moth is changing it's physical state more than it's chemical composition, but you should say both if that's an option.  

2)A physical change is when the temperature, shape, or state of matter changes. A chemical change occurs when the actual substance changes.  An example of this is a chemical reaction.  Because the slime is changing shape and not substances, I would say that it's obviously a physical change.  

Hope this helps, sorry that I'm not too sure about the 1st question.  

Cho a g hhA (Na và Ca) vào y g H2O thì thu đc 6,72l khí (đktc) và ddB trg đó nồng độ M kiềm canxi. Tính x,y bt C% của Na là 8%

Answers

Answer:

t5gbt 4 tbg3rvb tjj5tb4b4bv

Explanation:fhtb v4bvtvhbvv bh

Who is the intended audience?​

Answers

Answer:

From Middle school to college

Usually who you want your paper to be read by. For example “students need to spend less time on their phones” that is directed towards students. So students are the intended audience.

18.Which shows chemical weathering?
A. Rocks are dissolved by acid.
B. Rocks are irregularly shaped.
C. Rocks are broken into pieces.
D. Rocks are changed into finer particles.

19. How long does it take for the moon to rotate on its axis?
A. 12 days
B. 20 days
C. 15 days
D. 28 days

20.Why is the moon important to human beings?
A. It help farmer know the right time to plant crops.
B. It makes planet earth beautiful.
C. It makes the earth climates bearable.
D. It makes earth a more livable planet and stay in its axis.

22.Which statement is NOT true?
A. Stars differ in size.
B. Red stars are the hottest star.
C. The sun is a medium sized yellow star.
D. Supernovas are exploding stars.

24.What is the effect of the northeast monsoon in the country?
A. Brings rainfall.
B. Cold weather and little rainfall.
C. No rainfall and cold weather.
D. Little rainfall and warm weather.

Answers

Explanation:

18 A

19 C

20 C

22 A

24 B

hope this helps you.

A video camera would be most beneficial to someone who investigates?

Answers

Answer:

a person or persons murder

Answer: the aerodynamics of hummingbird wings.

Explanation: i got it right

The greater your capacity to love, the greater your capacity to feel the pain.​

Answers

Answer:

that's true

Explanation:

accurate. but to those who fall in love too easily, they also fall out of love as quick. there’s no pain it passes as if it’s nothing

What is made when certain wavelengths of light, or colors, are given off by hot gases and can be thought of like a fingerprint for elements?

constellations

nebulae

supernovas

emission lines

Answers

The emission lines of an element is characteristics of the element and can be thought of like a fingerprint for elements. Emission spectra is used to identify the elements.

What is emission spectrum ?

The electromagnetic radiation spectrum produced when an electron changes from a high energy state to a lower energy state is known as the emission spectrum of a chemical element or chemical compound.

The energy difference between the two states is equal to the photon energy of the emitted photon. Each atom contains a large number of potential electron transitions, and each transition has a distinct energy difference.

An emission spectrum is made up of a variety of transitions that result in various radiated wavelengths. The emission spectra of each element is distinct. Therefore, option d is correct.

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The worldwide record of earthquake activity indicates that _____.

a. the frequency of activity is stable (constant)
b. the frequency of activity is diminishing
c. the frequency of activity is slowly increasing
d. the frequency of activity is increasing rapidly

Answers

Answer:

My answer is d. hope this'll help

What is the energy of a photon with a wavelength of 260nm?

Answers

Answer:

4.76

Explanation:

Thủy phân hoàn toàn 62,5 g dd saccarozo 17,1%, trong môi trường axit

vừa đủ ta thu được dung dịch X. Cho AgNO,NH, vào dd X và đua nhẹ thu

được khối lượng Ag là

Answers

Answer:

có trong vietjack nè má, vô coi đi

Explanation:

https://khoahoc.vietjack.com/question/7374/thuy-phan-hoan-toan-62-5-gam-dung-dich-saccarozo-17-1-trongmoi-truong-axit

How many mass would be contained in 0.01mol of NaOH

Answers

Answer:

Explanation:

1mol NaOH---->40

0.01mol NaOH------>x

X=40×0.01=0.4

when you leave orange juice in the fridge for a while, the pope begins to sync to the bottom of the container. Why does this happen?

Answers

Orange Juice is a heterogeneous mixture. This means the orange juice contains more than one component.

This is true because orange juice contains two components. They are:

The juiceThe pulp

The reason why the pulp in orange juice sinks to the bottom is because the pulp is denser than the juice. So it is heavier and sinks to the bottom.

Density is how dense or heavy a substance is.  Orange juice is a mixture of pulp and juice.

When you leave orange juice in the fridge for a while, the pulp begins to sync and settle at the bottom and this is because the pulp is heavier or denser than the orange juice.

So the heavier component which is the pulp sinks to the bottom.

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A cylinder was found in a storeroom of a manufacturing plant. The label on the cylinder was gone, and
no one remembered what the cylinder held. A 0.00500-gram sample was found to occupy 4.13 mL at 23°C
and 745 torr. The sample was also found to be composed of only carbon and hydrogen. Identify the gas

Answers

The gas that is to be identified in the problem is C2H2

From the ideal gas equation;

PV = nRT

P = pressure of the gas = 745 torr or 0.98 atm

V = volume of the gas =  4.13 mL or 0.00413 L

n = number of moles of the gas = ?

R = gas constant = 0.082 atm Lmol-1K-1

T = temperature of the gas = 23°C + 273 = 296 K

n = PV/RT

n = 0.98 atm ×  0.00413 L/0.082 atm Lmol-1K-1 × 296 K

n = 0.00405/24.272

n = 0.000167 moles

Recall that;

Number of moles = mass/molar mass

molar mass = mass/Number of moles

molar mass = 0.00500-gram/0.000167 moles

molar mass = 30 g/mol

Since it is a hydrocarbon;

[12 +1]n = 30

n = 30/13

n = 2

The gas is C2H2

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distingush between conduction, convection, and radiation.

Answers

Answer:

Conduction is between solids, convention is between liquid and radiation between the sun and a body on the earth

Answer:

In conduction, heat transfer takes place between objects by direct contact. In convection, the heat transfer takes within the fluid. In radiation, heat transfer occurs through electromagnetic waves without involving particles. ... The heat transfer occurs through a heated solid object.

Explanation:

Explain the difference between accuracy and precision.

Answers

Answer:

Accuracy is the degree of closeness to true value.

Precision is the degree to which an instrument or process will repeat the same value.

Hope it helps....

Answer:

Accuracy and precision are alike only in the fact that they both refer to the quality of measurement, but they are very different indicators of measurement. Accuracy is the degree of closeness to true value. Precision is the degree to which an instrument or process will repeat the same value

Beautiful vases, figurines, and plate are some of the households which are useful. These objects are produced from a special kind of mixture. What kind of mixture do they possess?
Solution
Suspension
Colloid
Particles

Answers

Beautiful vases, figurines, and plate are a kind of mixture called colloid.

A colloid comprises of the dispersion of one substance in another. Therefore in a colloid there must be;

The dispersed substanceThe dispersing medium

These beautiful vases, figurines, and plate  are made of ceramics. In ceramics, composite materials and fibers are dispersed in a polymer matrix. Hence these beautiful vases, figurines, and plate are made of colloids.

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