What statements below correctly describes plasma

Answer:

The other technique which used to separate the coffee or tea is Filtration.

Filtration is a physical, biological or chemical operation that separates solid matter and fluid from a mixture with a filter medium that has a complex structure through which only the fluid can pass.

Solid particles that cannot pass through the filter medium are described as oversize and the fluid that passes through is called the filtrate.

Answer:

47 L will be the volume STP

Explanation:

Objects with more mass have more gravity. Gravity also gets weaker with distance. So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass.

Answer:

the moon or the sun

Explanation:

Answer:

Earth is made of several subsystems or "spheres" that interact to form a complex and continuously changing whole called the Earth system.  to thousands of kilometers, and on time scales that range from milliseconds to billions of years of the Earth; earthquake; Examples of long term - making coal; plate tectonics

Explanation:

During burning, elements in the coal are  converted to compounds called oxides.

An oxide is a compound formed by combination of an element with oxygen. Usually, when an element is burnt in oxygen, it combines with oxygen in the presence of heat to form oxides.

Coal contains carbon, nitrogen and sulfur. When coal is burnt, these elements combine with oxygen to form oxides. The products of combustion of coal are oxides of sulfur, oxides of carbon and oxides of nitrogen.

Learn more: https://brainly.com/question/2673886

Answer:

Cell or cellular

Explanation:

Heyy!! Not sure, but cell and cellular are the same. They carry out particular jobs and functions. Hope this helps, thank you :) !!

Answer:

The only force on it is its weight, w=9800N

Explanation:

Answer:

I am looking for this as well. Can someone please help!

Explanation:

Answer:

here you go :)

Explanation:

i know it isn't pretty but i hope you use it well

Answer:

1) combustion

2) double replacement

3) combination

4) combustion

Explanation:

The combustion of a compound refers to the reaction of that compound with oxygen to produce heat and light. In reactions (1) and (4) above, ethanol and methane reacted with oxygen to yield carbon dioxde and water. This is a combustion reaction.

Reaction(2) is a double replacement reaction because the both cations exchange their anion partners in the product.

Reaction (3) is a combination reaction. It involves the joining of two elements to form a new compound.

Answer:

PHOTOSYNTHESIS

Explanation:

Photosynthesis is the process by which plant take in Carbondioxde and water in the present of sunlight in order to produce glucose and oxygen

Answer:

the number of moles of ethanol is 18 g sample is 0.390 mol

Explanation:

The computation of the  number of moles of ethanol is 18 g sample is shown below:

= Mass of ethanol sample ÷ molar mass of ethanol

= 18 g ÷ 46.064=84 g

= 0.390 mol

Hence, the number of moles of ethanol is 18 g sample is 0.390 mol

Answer:

Heat deals more with thermal energy whereas temperature deals with molecular kinetic energy.

Answer: ΔH for the dissolution of [tex]NH_4NO_3[/tex] is +26.0205 kJ/mol

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

[tex]Q=m\times C\times \Delta T[/tex]

Q = Heat released by solution  = ?

C = heat capacity = [tex]4.18J/g^0C[/tex]

Initial temperature of water  = [tex]T_i[/tex] = [tex]25.008^0C[/tex]

Final temperature of water  = [tex]T_f[/tex]  = [tex]23.348^0C[/tex]

Change in temperature ,[tex]\Delta T=T_f-T_i=(23.348-25.008)^0C=-1.66^0C[/tex]

Putting in the values, we get:

[tex]Q=75.0g\times 4.18J/g^0C\times -1.66^0C=-520.41 J[/tex]

As heat released by water is equal to heat absorbed by dissolution of [tex]NH_4NO_3[/tex]  

[tex]\text{Moles of}NH_4NO_3=\frac{\text{given mass}}{\text{Molar Mass}}=\frac{1.60g}{80g/mol}=0.02mol[/tex]  

Enthalpy change for 0.02 moles of [tex]NH_4NO_3[/tex] = 520.41 J

Enthalpy change for  1 mole of [tex]NH_4NO_3[/tex] = [tex]\frac{520.41}{0.02}\times 1=+26020.5J=+26.0205kJ[/tex]

ΔH for the dissolution of [tex]NH_4NO_3[/tex] is +26.0205 kJ/mol

Answer: A I believe

Explanation:

Answer:

35.68g CO2

Explanation:

we use the combustion equation with CH4:

CH4+ O2= CO2 + H2O

And then balance it:

CH4+ 2O2= CO2 + 2H2O

Using this equation we can use sociometry:

[tex]13g CH4*\frac{1molCH4}{16.032gCH4} *\frac{1mol CO2}{1molCH4} *\frac{44g CO2}{1mol CO2}=35.68g CO2[/tex]

We know that  16.032 is how many grams there are in one mole of CH4 by adding the weights of the atoms (12 +1.008+1.008+1.008+1.008). These weights can be found on the periodic table. The same goes for the amount of grams per CO2.

The important thing about sociometry is to make sure your units cancel out until you are only left with the unit you want. If grams of CH4 is in the numerator, the next fraction you multiply by should have grams of Ch4 in the denominator. If moles of CO2 are in the numerator, the next fraction should have moles of CO2 in the denominator.  

Oxygen

hope that helped.

Answer:

[tex]P=0.346atm[/tex]  

Explanation:

Hello!

In this case, since the ideal gas equation is:

[tex]PV=nRT[/tex]

And we are asked to compute the pressure, we obtain:

[tex]P=\frac{nRT}{V}[/tex]

Thus, since the temperature must be expressed in Kelvins, we plug in to obtain:

[tex]P=\frac{0.150mol*0.08206\frac{atm*L}{mol*K}*250.15K}{8.90L}\\\\P=0.346atm[/tex]

Best regards!

Answer:

Scientific theories are the results of many experiments and observations.

Explanation:

I think this is ti sorry if I'm wrong :|

Answer:

1. 0.1712M

2. 6.86mg/mL Ca, 12.14mg/mL Cl, 6860000ug/L Ca, 12140000ug/L Cl, 6860mg/L Ca, 12140mg/L Cl, 6860ug/mL Ca, 12140ug/mL Cl.

3. 6860ppm Ca and 12140ppm of Cl.

4. 1.5mL of the 1000ug/mL barium standatd must be taken.

Explanation:

1. Molarity is defined as the amount of moles of solute (Calcium chloride) present in 1L of solution.

The moles of CaCl₂ are:

1.9g CaCl₂ * (1mol / 110.98g) = 0.01712 moles

In 100mL = 0.10L:

0.01712mol / 0.10L = 0.1712M

2. The masses of Calcium and Chloride ions are:

1.9g * (40.078g Ca / 110.98g) = 0.686g Ca

And:

1.9g - 0.686g Ca = 1.214g Cl

mg/mL:

686mg Ca / 100mL = 6.86mg/mL Ca

1214mg Cl / 100mL = 12.14mg/mL Cl

ug/L:

686000ug / 0.1L = 6860000ug/L Ca

1214000ug/ 0.1L = 12140000ug/L Cl

mg/L:

686mg Ca / 0.1L = 6860mg/L Ca

1214mg Cl / 0.1L = 12140mg/L Cl

ug/mL:

686000ug Ca / 100mL = 6860ug/mL Ca

1214000ug Cl / 100mL = 12140ug/mL Cl

3. ppm are defined as mg/L, the ppm of Ca are 6860ppm Ca and 12140ppm of Cl

4. The solution must be diluted from 1000ug/mL to 30ug/mL, that is a dilution of:

1000ug/mL / 30ug/mL:

33.33 times must be diluted the solution.

As final volume of the diluted solution must be 50mL, the volume of the standard needed is:

50mL / 33.33 times = 1.5mL of the 1000ug/mL barium standatd must be taken

Answer:

When reading the meniscus of a volumetric flask, your eye should be level with the etched line.

If the volumetric flask is over-filled with solvent above the etched line, the solution should be discarded as it is now inaccurate.

Once solid is dissolved, fill the volumetric flask with solvent until the bottom of the meniscus is touching the etched line. Then mix the solution. Preparation of the solution is now complete.

Explanation:

When preparing a solution of a solid, the solid must be accurately weighed. After the solid is weighed, it is now carefully transferred to the volumetric flask.

The person preparing the solution must ensure that his/her eyes is at the same level as the flask. In event of adding water above the etched line. The solution must be discarded because it has exceeded the required concentration.

Once the solid has been transferred to the flask, water is added until the bottom of the meniscus is touching the etched line. The solution is now mixed and preparation of the solution is now complete.

Answer:

your answer should be the bottom

sorry if im wrong

Explanation:

Answer:21

Explanation:sadadasdasdad

Answer:

Facial hair growth is largely propelled by testosterone, a hormone. Testosterone levels can vary. For men between 19 and 38, the normal range is 264 to 916 nanograms per deciliter

Answer:

D) Trees

Explanation:

I'm sure its trees, because once you cut all trees you cant regenerate, or replenish them. hope im right, sorry of its wrong!!

Answer:

0.1334

Explanation:

The number of atoms per unit (n) is given by:

[tex]n=\frac{\rho a^2bN_a}{A} \\\\where\ a=5.83*10^{-8}cm,b=a=3.18*10^{-8}cm,\rho=7.3\ g/cm^3,\\N_a=Avogadro\ number=6/022*10^{23} mol^{-1},A=atomic\ weight\\=118.68 \ g/mol\\\\n=\frac{7.3* (5.83*10^{-8})^2*(3.18*10^{-8})*6.02*10^{23}}{118.69}\\\\n=4\ atoms/unit[/tex]

The atomic packing factor (APF) is:

[tex]APF=\frac{n(\frac{4\pi R^3}{3} )}{a^2b} \\\\But\ R=atomic\ radius=1.51*10^{-8}\ cm\\\\APF=\frac{4(\frac{4\pi (1.51*10^{-8})^3}{3} )}{(5.83*10^{-8})^2*3.18*10^{-8}}\\\\APF=0.1334[/tex]

Answer:

Plant cells are surrounded by a cell membrane and outside this is a fairly rigid cell wall. The cell wall gives the plant cell a more definite shape than an animal cell. Animal cells do not have a cell wall.

Explanation:

True because It is flexible, but provides strength to the cell which helps protect the cell against physical damage. It also gives the cell its shape and allows the organism to maintain a certain shape o

Answer:

A: 2.37 % (m/v) NaCl Solution: crenation.

B: 0.59 % (m/v) glucose Solution: hemolysis.

C: distilled H2O Solution: hemolysis.

D: 9.39 % (m/v) glucose Solution: crenation.

E: 5.0% (m/v) glucose and 0.9% (m/v) NaCl: neither.

Explanation:

A red blood cell should be placed in an isotonic solution to avoid crenation or hemolysis. An isotonic solution has the same solute concentration as the one in the interior of the cell. As a result, the solvent does not have to move toward the place with a higher solute concentration to balance it.

When the red blood cell is in a solution that has a higher concentration of solutes than the one inside the cell, in other words, the cell is in a hypertonic solution. The solvent will flow from the cell to the solution causing a crenation of the cell.

When the red blood cell is in a solution with a lower solute concentration than the one inside the cell, also known as a hypotonic solution. The solvent will flow from the outside to the inside of the cell. As a result, the cell suffers hemolysis.

The isotonic solution for the cell should be 5.0% (m/v) glucose and 0.9% (m/v) NaCl, to avoid crenation or hemolysis.

Answer:

i dont know

Explanation:heheheheh