Porrrrrrffffffaaaaaavvvvvvooooorrrrrrr

Porrrrrrffffffaaaaaavvvvvvooooorrrrrrr

Answers

Answer 1

Answer:

2.2)solido

2.3)Sólido cristalino

2.4)Sólido amorfo


Related Questions

What charge would Balloon #2 have? How did you determine this?

Answers

Answer:I belive it would be attracted seeing as how there are more magmatic charges on that side of no 2 and how there are more positive charges on the middle side of ballon no1.

Explanation:

Carbon (C): 1sH2sI2pJ
H=
I =
J =

Answers

Answer:

H =2; I = 2; J = 2  

Explanation:

Carbon is element 6 in the Periodic Table.  

Start at element 1 (H) and count from left to right until you reach element 6 (C).

You get the electron configuration

C: 1s² 2s²2p².

Thus,

H =2; I = 2; J = 2

Para la siguiente reacción: 2NH 3(g) + CO 2(g) ———> (NH 2 ) 2 CO (l) + H 2 O (l) a) ¿Cuántos gramos de NH 3 se necesitan para formar 720 g de (NH 2 ) 2 CO? b) ¿Cuántos moléculas de agua se obtienen a partir de 9 litros de CO 2 ayudenme porfa

Answers

Answer:

a. 408g de NH3 son necesarios

b. 2.42x10²³ moléculas de agua se obtienen

Explanation:

a. Basados en la reacción, 2 moles de NH3 producen una mol de (NH2)2CO. Para resolver esta pregunta debemos convertir la masa de (NH2)2CO a moles. Estas moles a moles de NH3 y su respectiva masa:

Moles (NH2)2CO -Masa molar: 60.06g/mol-

720g * (1mol / 60.06g) = 11.99 moles (NH2)2CO

Moles NH3:

11.99 moles (NH2)2CO * (2mol NH3 / 1mol (NH2)2CO) = 23.98 moles NH3

Masa NH3 -17.031g/mol-:

23.98 moles NH3 * (17.031g / mol) = 408g de NH3 son necesarios

b. 1mol de CO2 produce  1mol de agua. Se debe convertir el volumen a moles usando PV = nRT. Estas moles = Moles de agua. 1mol = 6.022x10²³ moléculas:

Asumiendo STP:

PV = nRT; PV / RT = n

Donde P = 1atm a STP

V = 9L

R = 0.082atmL/molK

T = 273.15K a STP

1atm*9L / 0.082atmL/molK*273.15K = n

n = 0.402 moles CO2 = Moles H2O

Moléculas:

0.402 moles agua * (6.022x10²³ moléculas / 1mol) =

2.42x10²³ moléculas de agua se obtienen

Which formula represents a hydrocarbon with a double covalent bond?

Answers

Answer:

c is the answer

step by step explanation is not

The formula which represent a hydrocarbon with a double covalent bond is C₂H₄.

Hence, option D is correct answer.

What is Double Covalent Bond ?

A double covalent bond is a type of covalent bond which involves the sharing of two pairs of electrons.

What is Covalent Bond ?

A covalent bond is a type of chemical bond that involves the sharing of electron pairs between the atoms.

Now lets check all options one by one

Option (A): CH₃Cl

In CH₃Cl carbon has 4 valence electrons and carbon shares its 1 electron each with three hydrogen atoms and carbon shares its 1 electron with chlorine. Here bonds are formed due to sharing of electrons between the atoms. Hence CH₃Cl is covalent bonded.

So, it is incorrect option.

Option (B): C₂H₃Cl

In  C₂H₃Cl, here two carbon atoms form double bond but they not form covalent bond.

So it is incorrect option.

Option (C): C₂H₂

In C₂H₂, each carbon has 4 valence electrons and each carbon shares its   one electron with each hydrogen atom here two carbon atoms are triple bonded.

So, it is incorrect option.

Option (D): C₂H₄

In C₂H₄, there are two carbon atoms and two hydrogen atoms, here two carbon atoms are double bonded.

So, it is correct option.

Thus, from above conclusion we can say that The formula which represent a hydrocarbon with a double covalent bond is C₂H₄.

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How many moles are in 4.01x10^24 particles?

Answers

Answer:

6.64

Explanation:

so moles

[tex] \frac{number \: of \: \: particles \: }{6.02 \times {10}^{23} } [/tex]

then do =4.01×10^24/6.02×10^23

you get the answer as 6.6445 u only need to write the answer to

3.S.F 6.64 moles

hope this make sense :)

Which of the following is a correct statement about water?
A)Hydrogen bonding causes water to be strongly cohesive.
B)Hydrogen bonding causes water to have a low surface tension.
C)Water is a universal solvent because polar and nonpolar solutes can dissolve in it.
D) Water is less dense as a liquid than as a solid because of changes in bond structure.

Answers

Answer:

D) Water is less dense as a liquid than as a solid because of changes in bond structure.

Explanation:

I hope I was able to help!

Have a nice day :)

The correct statements about water is that hydrogen bonding causes water to be strongly cohesive and is less dense as a liquid and solid.

What is hydrogen bonding?

It is bonding in between the hydrogen atom and most electronegative atoms like flourine, chlorine, oxygen atoms, etc.

In water molecule hydrogen bonding is present in the form of intermolecular as well as intramolecular force and makes it more cohesive to get attracted towards each other.Water molecule has a high surface tension, as a result of which it is able to form a drop of water.Water is not a universal solvent, else it is a polar solvent and able to dissolve only polar molecules.It is also true that water is less dense as a liquid than as a solid because of changes in bond structure.

Hence water is less dense as a liquid than as a solid because of changes in bond structure and hydrogen bonding causes water to be strongly cohesive.

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what's radioactivity with a clear definition​

Answers

The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei

URGENT!! 7.(06.02 MC)
A list of changes is shown.

A. Temperature decreases

B. Intermolecular bonds become weaker

C. Melting

D. Intermolecular bonds
become stronger

E. Temperature remains constant

F. Temperature increases

G. Vibration of molecules slows down

H. Molecules vibrate faster

Which of the above changes would be accompanied by an increase of the kinetic energy of particles in a solid? (5 points)

1. A, B, C, and H
2. A, C, D, and G
3. B, E, F, and G
4. B, C, F, and H

Answers

Answer:

3.B,E,F and G

Explanation:

1.A,B,C and H

Answer:

4. B, C, F, and H

Explanation:

Analyze the following chemical combinations
a) MgO
b)CaCl2
c) Na2O​

Answers

The answer is B for sure

Which BEST describes how the genetic color variation within the beetle population helps them to survive? A. The color variation helps them to locate food B. The color variation helps them avoid predators C. The color variation helps them compete for resources D. The color variation helps them find mates for reproduction

Answers

Answer: B

Explanation: The beetles would be able to use their genetic color to learn how to adapt to the environment and hide from predators.

The statement, that describes the genetic color variation within the beetle population helps them to survive is "the color variation helps them avoid predators."

What is genetic variations?

Genetic variations that can exist in a human population include skin color, hair color, dimples, freckles, and blood type. Human skin tone is a classic changeable characteristic that is regarded to be adaptive. Natural selection can result in major changes in the appearance, behavior, or physiology of individuals in a group in a matter of generations.

What is color variation?

Meiosis and sexual reproduction combine various alleles in novel ways to generate genetic variety once new alleles emerge. Because of natural selection, green beetles outnumber red beetles. Color diversity can involve camouflage, and beetles could utilize their genetic color to learn how to adapt to their surroundings and hide from predators.

Because this feature has a genetic foundation, the surviving beetles have progeny of the same hue. Brown coloring, which permits the beetle to have more offspring, becomes increasingly prevalent in the population.

Hence the correct option is B.

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¿Cuál de las siguientes configuraciones globales corresponde a un elemento químico que se comporta como metal? 1 punto [He]2s2 2p6 [Ar] 4s2 3d2 4p3 [Ne]3s2 [Ar] 4s2 3d10 4p4

Answers

Answer:

[Ne]3s2

Explanation:

ahora tenemos que mirar cada una de las configuraciones electrónicas de cada átomo de cerca antes de tomar una decisión.

considerando la configuración electrónica más externa de cada una de las especies mostradas;

para la primera configuración, ns2 np6 corresponde a un gas noble.

para la segunda configuración ns2 np3 corresponde a un elemento no metálico del grupo 5.

para la tercera configuración, ns2 corresponde a un elemento metálico del grupo 2.

para la cuarta configuración, ns2 np4 corresponde a un elemento no metálico del grupo 6

calculate the pressure in atm of .68 mol of H at 298K and occupying 4.5 L

Answers

Answer:

3.7 atm

General Formulas and Concepts:

Atomic Structure

Moles

Gas Laws

Ideal Gas Law: PV = nRT

P is pressureV is volumen is number of molesR is gas constantT is temperature

Explanation:

Step 1: Define

Identify variables

[Given] n = 0.68 mol H

[Given] T = 298 K

[Given] V = 4.5 L

[Given] R = 0.0821 L · atm · mol⁻¹ · K⁻¹

[Solve] P

Step 2: Find Pressure

Substitute in variables [Ideal Gas Law]:                                                          P(4.5 L) = (0.68 mol)(0.0821 L · atm · mol⁻¹ · K⁻¹)(298 K)Multiply [Cancel out units]:                                                                               P(4.5 L) = (0.055828 L · atm · K⁻¹)(298 K)Multiply [Cancel out units]:                                                                               P(4.5 L) = 16.6367 L · atmIsolate P [Cancel out units]:                                                                             P = 3.69705 atm

Step 3: Check

Follow sig fig rules and round. We are given 2 sig figs as our lowest.

3.69705 atm ≈ 3.7 atm

lime water turns milky when carbon dioxide gas passed through it and on further exposure to carbon dioxide the milkiness disappear, why​

Answers

Resultant carbon dioxide passed through limewater in the right tube, producing a milky solution due to precipitation of the insoluble suspension of calcium carbonate: ... The milkiness disappears since calcium bicarbonate is water-soluble.

sources of magnesium to plants​

Answers

Magnesium may be used as a plant fertilizer, in the form of Magnesium Sulphate.

balance the following equation.
C + H2 + 02 → C2H60

Answers

4C + 6H2 + O2 -> 2C2H6O

Answer:

4C + 6H2 + O2>>2C2H6O

Explanation:

there must be equal number of carbons, hydrogen and oxygen between products and reactants

Struggling on this problem.

Answers

Answer:

4Al + 3O2 ----> 2Al2O3

Explanation:

first blank 4

second blank 3

third blank 2

Hydrazine, N2H4, reacts with dinitrogen tetroxide, N2O4:

2 N2H4 (l) + N2O4 (g) → 4 H2O (l) + 3 N2 (g)

When 0.10 mol of hydrazone reacts with 0.10 mole of dinitrogen tetroxide, which of the following quantities would be consumed or produced?

Select one:

Answers

Answer:(I)+3 N2(g) that is correct

Explanation:

number 2 pls help me :):)

Answers

Answer:None of the tunes make a correct statement the third choice is closed but may still dating the pencil operates broken because the light been to a zoo from a straight line when it across the boundary between air and water

Explanation:

Indica en qué modelos se fueron descubriendo las partículas atómicas y las unidades en la que se expresan su masa y su carga eléctrica

Answers

Answer:

En total son 8 modelos, en la explicación los nombraremos por orden de antigüedad.

Explanation:

Modelo atómico de Demócrito (450 a.C.)

Modelo atómico de Dalton (1803 d.C.)

Modelo atómico de Lewis (1902 d.C.)

Modelo atómico de Thomson (1904 d.C.)

Modelo atómico de Rutherford (1911 d.C.)

Modelo atómico de Bohr (1913 d.C.)

Modelo atómico de Sommerfeld (1916 d.C.)

Modelo atómico de Schrödinger (1926 d.C.)

Question 9 (1 point)
If a mylar balloon is filled with gas to a volume of 2.9 L at a temperature of 20 degrees celcius and then heated with a heat gun to 150 degrees
celcius, what is the new volume (assume no air escapes the balloon)?

Answers

Answer:I’m not sure

Explanation:free trial

any artist out there?

I need help knowing what colors I should use for a painting.​

Answers

you can explain your question i can help if i know it

Answer:

You could use red, blue, yellow, white, black, brown, green, orange, purple

Other useful colors:

Payne grey

Yellow or golden ocher

Titanium buff or raw titanium

Explanation:

The lightest particle among the following is :

Answers

The question is incomplete, the complete question is;

The lightest particle among the following is:

• Electron •Proton • Neutron • Alpha​

Answer:

Electron

Explanation:

There three basic subatomic particles are electrons, protons and neutrons. Both protons and neutrons are found in the nuclear and both contribute towards the mass of the atom. The alpha particle has the same mass as the helium nucleus.

However, the electrons are found in orbiit and have a negligible mass compared to the mass of the protons and neutrons. The mass of the electron is about 9.11 × 10^-31 Kg. This makes it the lightest of all the particles listed among the options.

URGENT PLEASE HELPIf 25 grams of liquid water releases 75J of heat when water cools from 88 degrees Celsius what is the final temperature?​

Answers

Answer:

HEY RUBY!! WE ARE BOTH FAILING!!!!!!!

Explanation:

#&-78$#'☠️

the element magnesium has 3 orbital and 3 electrons true or false​

Answers

Answer: True

Explanation:

identify water resevoirs as usuable or unusuable on their current state

Answers

Oceans :unusable
Rivers :usable
Glaciers :usable
Freshwater: usable
Lakes :usable
Groundwater :usable
Answer: An usable form of water can be defined as the water that can be used for the commercial purposes and drinking purposes.
The water that cannot be used for the commercial purposes and drinking purposes is known as unusable water.
Explanation:
usable: Groundwater, freshwater lakes and rivers.
unusable: Glacier and ocean
The fresh water can be used for drinking purposes and the salty water is suitable for the drinking or commercial purposes

Which of the following has kinetic energy?

Answers

Answer:

c ) a gymnast doing a cartwheel. ........

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The electronegativities of carbon and sulfur are almost the same. Both elements form covalently bonded compounds with hydrogen. Why is hydrogen sulfide a polar compound while methane is a nonpolar compound?
a.Sulfur has a stronger attraction for electrons than does carbon
b.A hydrogen sulfide molecule has lone pairs of electrons
c.Sulfur forms ionic bonds with hydrogen while carbon forms covalent bonds
d.Sulfur ions are larger than carbon ions

Answers

Answer:

b. A hydrogen sulfide molecule has lone pairs of electrons

Explanation:

The presence of lone pairs indictates that the molecule will be polar unless its molecular geometry is linear or square planar. In the case of H2S, its shape is bent due to the lone pair and it is a slightly polar molecule.

Calculate how many methane molecules and how many carbon and hydrogen atoms are there in 25 g of Methane?​

Answers

From the formula of methane it is clear that one mole of methane has 4hydrogen atoms. So, 37.6×1023 hydrogen atoms are there in 25.0 g of methane. Therefore, 9.4×1023methane molecules and 9.4×1023 hydrogen and 37.6×1023carbon atoms are there in 25.0 g of methane.

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1. What metal is oxidized in the most common dry cell?
zinc
iron
carbon
copper

Answers

Answer:

the correct answer is zinc

Zinc is the correct I think

chemistry help best answer gets marked brainly

Answers

Answer:

C. The final substance in beaker A is a pure substance while in Beaker B is a mixture

Explanation:

A pure substance is a substance that contains a constant and definite proportion of a single substance. Elements and compounds are the two known pure substances while mixtures are substances of different compositions mixed together.

In this question, two beakers; A and B are said to contain different substances. Beaker A contains elemental sulfur (S) that forms a yellow powder while beaker B contains sand and water. From the explanation above, the final substance in beaker A is a pure substance (element) while in beaker B is a mixture of sand and water.

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4-9+8+7+9+10+11+21+33+25-3 minus -50-55+50 The table of values shown below represents a linear function. Which of these points could also be an ordered pair in the table, and why? Current information for the Healey Company follows : Beginning raw materials inventory Raw material purchases Ending raw materials inventory Beginning work in process inventory Ending work in process inventory Direct labor Total factory overhead $ 15,700 60,500 17,100 22,900 28,500 43,30030,500 All raw materials used were traceable to specific units of product . Healey Company's direct materials used for the year is : Para que sirve el reciclaje de componentes elctricos? Que realizas t para realizar los dispositivos informticos que ya no utilizas? Which number is GREATEST?0.270.0460.2970 0.3 Pleaseee Helpp. If the radius is 21 m and area of sector of the circle are 27.72 m2, calculate the angle at the centre of the circle. Thanes were a group of upperclass, free noblemen whom the king used for military service.TrueFalse PLEASEEEE ANSWER THIS IM BEING TIMED AND SHOW YOUR WORK ILL GIVE TOU BRAINLIST IF YOU DO!!!! Help pls!!!!!!!!!!!!!! the height of a tower is 15m more than tiwce the height of a building find the height of the building if tower is 255m tall EllusFind the range of the data.The ages of people eatingchocolate ice cream at a park.12, 2, 8, 5, 3, 2,5Range: [? ]Enter the number that belongs in the green box. Kathie buys a bottle of fruit juice for $2.50 and a few loaves of bread for $1.20 each.a. If she spent $8.50, how many loaves of bread did she buy?b. If she can spend AT MOST $20, how many loaves of bread can she buy? An older sibling has 3 beers at happy hour then drives home. This is an example of A: Drug Abuse,B: Drug Use, C: Intoxication, Drug Misuse, 1:Under what condition will the line px+py+r=0 mat be a normal to the circke x+y+2gx+2fy+c=02:prove that the two circles x+y+2ax+c=0 and x+y+2by+c=0 touch if [tex]\frac{1}{a}+\frac{1}{b}=\frac{1}{c}[/tex] PLS HELP! Two angles are complementary. Draw a diagram that illustrates the complementary angles. One angle measures 35 and the other measures (x + 15). What is the value of x? What type of solutions does the quadratic equation, 8v2 + 8 = -11v, have? whats the value of 13C11 Can 17, 9, and 11 be the side lengths of a triangle? How many milliliters of 5.0 M NaOH are needed to exactly neutralize 40. milliliters of 2.0 M HCl? List 5 examples of positive peer pressure