¿Qué fase de la materia se muestra en la imagen? *

Answer:

25 percent

Explanation:

have a good day/ night

Answer:

25%

Explanation:

hope it helps

10 grams

mass does not change when cooking the egg

Answer:

B

Explanation:

The oxygen atoms have fewer protons than chlorine atoms:) hope this helps:))

According to the electronic configuration, oxygen atoms have fewer protons and electrons than chlorine atoms.

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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The number of moles of nitrous acid used to prepare the solution is 0.0021 moles.

pH of the HNO2 solution =  1. 96

Concentration of the HNO2 solution = Antilog(-1.96) = 0.011 M

We have to set up the ICE table as follows;

         HNO2(aq)   ⇄ H^+(aq)  +   NO2^-(aq)

I      0.011                    0                 0

C     -x                         +x               +x

E     0.011  - x              x                  x

The dissociation constant of the acid is 5.0 × 10−4

Hence;

5.0 × 10−4 = x^2/ 0.011  - x

5.0 × 10−4(0.011  - x ) = x^2

5.5  × 10^-6 - 5.0 × 10^-4x =  x^2

x^2 + 5.0 × 10^-4x - 5.5  × 10^-6 = 0

x= 0.0021 M

The concentration of the acid (H^+) in the solution is 0.0021 M. The number of moles of the acid is obtained from;

0.0021 M × 1 L = 0.0021 moles

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Answer:

Na2SO4

2×23 + 32 + 4×16

46 + 32 +64

=142g

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

f is the force

m is the mass

From the question we have

[tex]a = \frac{5}{10} = \frac{1}{2} = 0.5 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example.

Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed.

Complex disorders, where there are mutations in two or more genius.

Hope it help^^

Brainliest me pls

Answer:

The theory of continental drift is most associated with the scientist Alfred Wegener. In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting” across the Earth, sometimes plowing through oceans and into each other. He called this movement continental drift.

Explanation:

Answer:

try using this calculator

wolfram alpha lewis structure calculator

Explanation:

The best Lewis structure, adhering to formal charge rules, of IO₄⁻, has eight bonding pairs of electrons around the iodine atom.

A Lewis Structure is a very simplified representation of the valence shell electrons in a molecule. It is used to show how the electrons are arranged around individual atoms in a molecule.

The shared pairs of electrons are drawn as lines between atoms, while lone pairs of electrons are drawn as dots next to atoms.

They also display the total number of lone pairs present in each of the atoms that constitute the molecule.

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Answer:

plutonic rocks are formed when magma cools and solidifies underground This shows us if the rock is plutonic or volcanic. When magma cools underground, it cools super slow and when lava cools above ground, it cools faster. When magma and lava cool, mineral crystals start to form in the molten rock.

Explanation:

i hope this is correct

Answer:

Gravity

Explanation:

The following factors contribute to plate tectonics: The Mantle's Convection. Mountain push gravitational force at the spreading ridges, Block pull gravitational force in subduction zones. Hence, option B is correct.

The gravitational force, which is what pushes mass-containing objects toward one another. We frequently consider the pull of gravity from the Earth. Your body is kept on the ground by this force. However, all mass-bearing objects are pulled toward one another by gravity.

Population growth and changes in people's wants and activities are the main causes behind this. Changes in the overall levels of output and consumption are caused by these main movers.

The driving forces put strain on the environment through these modifications to production and consumption. In the direction of motion, gravity produces an active driving force.

Thus, option B is correct.

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Answer:

need points rn sorry bro hope u get ur answer

Explanation:

Answer:Butane > ethane > methane, because between bigger molecules there are stronger van der Waals forces and also higher molar mass means they need to be given more energy to have enough kinetic energy to move quickly, freely in gas.

There are multiple butene isomers (Butene) and some (2-Butenes - cis and trans) actually have higher boiling point than n-Butane (there is also Isobutane, of course, with quite much lower boiling point than all of them) and some (1-Butene, Isobutylene) have lower, so this isn't really a fair or simple question. But on simplest level, it can again be said that 1-butene has lower boiling point because it has very similar shape but slightly lower molar mass (2H less) than n-butane.

Explanation:

Intermolecular forces such as dipole-dipole forces, London dispersion forces exist between molecules and these depend on strength of electronegativity of molecule. Therefore, methane converts to gas on boiling due to weak intermolecular forces of attraction between the molecules.

Intermolecular forces of attraction is force of attraction that make two molecule come closer. Intermolecular forces of attraction is directly proportional to the electronegativity of the molecule.

Size of electronegative molecule is small so, if any other molecule or molecule come into contact with this molecule then this molecule attract the electron of other molecule very efficiently and therefore the force between the molecule increases.

Molecules of methane have weak intermolecular forces of attraction. When energy is applied, the methane molecules easily break apart and turn into gas.

Therefore, methane converts to gas on boiling due to weak intermolecular forces of attraction between the molecules.

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Answer:

Explanation:

Answer:

capable of being hammered out thin, as certain metals; malleable.

Explanation:

Answer:could u expand on the question

Explanation:

Answer:

Convection is the transfer of heat energy in a fluid. Air in the atmosphere acts as a fluid. The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air.

The heat capacity of the calorimeter is 133.76 J°/C.

A calorimeter is an apparatus employed when estimating the amount of heat required in a chemical reaction.

For the given calorimetric function:

These can be computed mathematically as:

[tex]\mathbf{m_wC_w\Delta \theta _w = m_cC_c\Delta \theta _c + C_{cal} \Delta_c}[/tex]

[tex]\mathbf{80 \ g\times 4.18 J/g^0 C \times (80-45)^0 \ C = 80 g \times 4.18\ J/g^0 \ \times (45- 20)^0 +C_{cal} \times (45- 20)^0 \ C}[/tex]

[tex]\mathbf{11704 \ J =8360 \ J+C_{cal} \times (25)^0 \ C}[/tex]

[tex]\mathbf{(11704 -8360) \ J= C_{cal} \times (25)^0 \ C}[/tex]

[tex]\mathbf{ C_{cal} = \dfrac{3344 \ J} { (25)^0 \ C}}[/tex]

[tex]\mathbf{ C_{cal} =133.76 \ J/^0 C}[/tex]

Therefore, the heat capacity of the calorimeter is 133.76 J°/C.

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Answer: The information about sequential order of the event occurred in the past can be obtained by using only relative dating method.

Explanation:

Relative dating method doesn’t give information about when it happened. It provides sequential order of the events. It is the art of deciding the overall happening of past occasions (i.e., the age of an item in contrast with another), without fundamentally deciding their outright age (for example evaluated age).

In topography, shake or shallow stores, fossils and lithologies can be utilized to correspond one stratigraphic segment with another.

Answer:

Co2(CO3)3

Hope this helps!!

Answer:

hope its help

Explanation:

melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1

Answer:

I hope you have your correct answer

4P(s)+5O2(g)-->2P2O5(s)

4 moles of P=2moles of P2O5

0.97 moles of P=(2*0.97)/4

=0.485 moles

The new concentration of the solution that has 400.0 mL of a 0.425 M solution of NaCl diluted to 900.0 mL is 0.189M

HOW TO CALCULATE CONCENTRATION:

C1V1 = C2V2

Where;

400 × 0.425 = 900 × C2

170 = 900C2

C2 = 170 ÷ 900

C2 = 0.189M

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Answer:

B  

Explanation:

Answer:

answers

B

Explanation:

Explicaciónexplicacaca

the answer isssssssssssssssssssssss... Nh3.

Answer: A.) NH3

Explanation:

Answer:   C2H4 + 3O2 → 2CO2 + 2H2O

Explanation:

2Al + 2O2 → 2AlO + O2            Not Balanced Properly:  2Al + O2 = 2AlO  

C2H4 + 3O2 → 2CO2 + 2H2O  Looks Good

2CH4 + O2 → 2CO + 4H2          Not Correct:  CO should be CO2

Ca + O2 → CaOH                        Not Balanced and No source for the H

Answer:

2H4+3O2 →2CO2+2H2

Explanation: