What is the geometric shape of this molecule based on this diagram?

Answer:

Area = 51.74cm ² 

Explanation:

5.6 × 9.4 = 51.744

Round above answer

= 51.74

Answer:

white phosphorus is P4 in a tetrahedral shape and there are some really cool videos of it reacting in air and some not very cool ones where it was used militarily it is not stable, it needs to be stored underwater

red phosphorus is a larger more complicated network solid with many more phosphorus and is very stable

they are allotropes of phosphorus

Explanation:

wind power is:- Wind power or wind energy is the use of wind to provide mechanical power through wind turbines to turn electric generators for electrical power. Wind power is a popular sustainable, renewable source of power that has a much smaller impact on the environment compared to burning fossil fuels

it's work :-Wind turbines work on a simple principle: instead of using electricity to make wind—like a fan—wind turbines use wind to make electricity. Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity.

Disadvantages:-

The wind is inconsistent. ...

Wind turbines involve high upfront capital investment. ...

Wind turbines have a visual impact. ...

May reduce the local bird population. ...

Wind turbines are prone to noise disturbances. ...

Installation can take up a significant portion of land. ...

Wind turbines can be a safety hazard

Advantages:-

Wind power is cost-effective. ...

Wind creates jobs. ...

Wind enables U.S. industry growth and U.S. competitiveness. ...

It's a clean fuel source. ...

Wind is a domestic source of energy. ...

It's sustainable. ...

Wind turbines can be built on existing farms or ranches.

Answer:

Nylon

Explanation:

Nylon was the first synthetic fiber made in the "fully synthetic" sense of that term. It was made by Wallace Carothers, an American researcher at the chemical firm DuPont in the 1930s.

Answer:

MnO₂

Explanation:

Answer:

Melting ice speeds up climate change.

Explanation:

The Arctic helps to regulate the world's temperature, so as more Arctic ice melts the warmer our world becomes.

Answer: Mg is a cation and Cl is an anion

Explanation: In more detail, if you look at the periodic table, the group number (or columns) of the elements, describe how many valence electrons, or how many electrons the element has available to have a complete an electron shell. Magnesium being in group 2, it has one 2 electrons that will be "donated" to an anion that it bonds with. However, Chlorine being in group 17, (look at the single digit number for double digit groups), it has 7 valence electrons. Knowing that a full electron shell is usually 8 electrons, it needs only one. Since Magnesium has 2 valence electrons to give away, two atoms of Chlorine gas will then bind to the Magnesium, where the 2 Chlorine atoms will take the electrons to fill their shells. Magnesium Chloride, in terms of charges when in ions, [Mg]2+ and 2 [Cl]-1

Magnesium chloride is formed when magnesium ion formed from the loss of two electrons and two chloride ions formed by accepting one electron each are held together by electrostatic attractive forces.

Magnesium chloride is an ionic compound which consists of magnesium ions and chloride ions.

Therefore, magnesium chloride is formed when magnesium ion formed from the loss of two electrons and two chloride ions formed by accepting one electron each are held together by electrostatic attractive forces.

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Answer:

The heat would flow from the hot solid to the cool solid until all temperatures are near equal.

Answer:

CaCO3 + 2 HCl => CaCl2 + CO2 + H2O

Explanation:

CO2 will burst out when the reaction occurs in water, and the ions will be dissociated: Ca(2+) + 2 Cl (-)

Answer:

two hydrogen bonds ,Intramolecular hydrogen bonding is partly responsible for the secondary and tertiary structures of proteins and nucleic acids.

Answer:

none

Explanation:

mmonia (NH 3): Hydrogen bonds form between hydrogen of one molecule and nitrogen of another. In the case of ammonia, the bond that forms is very weak because each nitrogen has one lone electron pair. This type of hydrogen bonding with nitrogen also occurs in methylamine.

Answer:

chemical is fire

and ductility is physical

Explanation:

give me brainliest please

Answer:

a

Explanation:

commensalism

Answer:

1st step : find the number of moles for the known substance

number of moles =mass/ relative molecular mass

n=23/Li2O2

n=23/(14+32)

n =23/46

n= 0,5moles

2nd step : balance the equation

2Li202 +2H20-----> 4LiOH +O2

3rd step : find the mole ratio of the known or stated using the balanced equation

Li2O2 : O2

2 : 1

4th step :find the number of moles for the asked using the mole ratio using simple proportion

Li2O2 :O2

2 :1

0,5 :???

0,5/2 ×1

= 0,25moles for (O2)

5th step : find the asked either mass , volume , concentration

number of moles = volume/molar gas volume

volume = number of moles × molar gas volume

v = 0,25moles × 28dm^3

v= 7 dm^3 of (O2)

Answer:

All of the consumers and producers eventually become nourishment for the decomposers.

Explanation:

Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.

Answer:

The force of the atmosphere 200 KN.

Explanation:

Pressure is the ratio of force applied to the area  to which the force is applied.

i.e Pressure = [tex]\frac{Force}{Area}[/tex]

But, Pressure = 100000 pa (100000 N/ [tex]m^{2}[/tex]), and surface area = 2.0 [tex]m^{2}[/tex]

Thus,

100000 = [tex]\frac{Force}{2.0}[/tex]

⇒ Force = 100000 x 2.0

              = 200000

Force = 200 KN

The force of the atmosphere 200 KN.

Answer:

tsunamis

they are literally water earthquakes that force tons of water ashore and wipes out cities and towns

Answer:

0.683 moles of the gas are required

Explanation:

Avogadro's law relates the moles of a gas with its volume. The volume of a gas is directely proportional to its moles when temperature and pressure of the gas remains constant. The law is:

V₁n₂ = V₂n₁

Where V is volume and n are moles of 1, initial state and 2, final state of the gas.

Computing the values of the problem:

1.50Ln₂ = 5L*0.205mol

n₂ = 0.683 moles of the gas are required

Answer:

In chemistry and physics, a valence electron is an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond if the outer shell is not closed; in a single covalent bond, both atoms in the bond contribute one valence electron in order to form a shared pair.

approximately 3 liter

because when we round of 2.67it will be 3

Answer:

A

Explanation:

solute- thing being disolved

solvent- thing doing the disolving

so water is a solvent and salt is solute.

which is A

if my answer helps please mark as brainliest.

In the solution of salt and water, Water is the solvent; Salt is the solute. That is option A.

A solute is defined as the part of a solution that is being dissolved by the solvent. A typical example of solute is base and salts.

A solvent is defined as the dissolving part of a solution which is usually liquid in form. A typical example is water.

Therefore, the solute and solvent of a solution would be salt and water respectively. That is option A.

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Answer:

there is no 2d so the first one is no good

the other 2 look good

Explanation:

Answer:

Heating a substance can cause the substance to change state

The way particles move changes when the substance's thermal energy changes.

Particles in all states of matter are constantly

moving.

Those are all correct and apply to water in all three phases

Answer:

1.25 moles of tungsten carbide

Explanation:

Tungsten carbide, WC, is a substance that is produced prom carbon and tungsten as follows:

W + C → WC

Based on the reaction, 1 mole of Carbon produce 1 mole of tungsten carbide. That means if 1.25 moles of carbon are added in excess of tungsten, the moles of tungsten carbide produced are:

Answer:

.....

Explanation:....