What is incorrect in the structure? Check all that apply. The middle hydrogen is surrounded by 4 electrons. Oxygen is surrounded by 8 electrons. The middle hydrogen is bonded to 2 elements. There are too many electrons in the final structure.

Answers

Answer 1

Answer: The middle hydrogen is surrounded by 4 electrons, the middle hydrogen is bonded to 2 elements, and there are too many electrons in the final structure are correct.

Explanation: I just did this question and got the correct answers.

Answer 2

The incomplete points about the structure H—H-O: is that the middle hydrogen is surrounded by 4 electrons, the middle hydrogen is bonded to 2 elements, and there are too many electrons in the final structure are correct.

For better understanding let's explain the Lewis structure

Lewis Structure is simply showing or the representation of a molecule that tell use how the valence electrons are putt in place (arrange) among the atoms in the molecule.

From the above we can therefore say that the answer The incomplete points about the structure H—H-O: is that the middle hydrogen is surrounded by 4 electrons, the middle hydrogen is bonded to 2 elements, and there are too many electrons in the final structure, is correct.

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Related Questions

pls this is my second time asking these questions, i'm sorry, but i really need help!!! 1. what happens to atoms when there is a chemical reaction? 2. what are the rules that have to be followed for atoms? 3. what do these rules mean for chemical reactions? sorry, chemistry isn’t really my best subject lol

Answers

Answer:

the atoms of the original substances gain, lose and even share their very own electrons. write the symbols of the elements that form the compound. Write down the valency, and lastly go over valencies. This is all I got so far. I hope this helps

Explanation:

HELP PLEASE 100 points!!!

Answers

Answer:

by the looks of it the answer you have is correct

Explanation:

Answer:

The answer B

.

Explanation:

On December 25th, 1776, General George Washington’s Continental Army crossed the Delaware River and defeated troops of Hessians (German soldiers fighting for the British). Here’s a fictionalized account of that historical event: “While our general stood bravely in the Christmas Day cold, I shivered from more than just the icy wind. Beyond the river were enemy soldiers from the most obscure corners of Europe. I could barely fathom the unknown monsters ahead.” How did the fiction author make the factual account more exciting? A The author altered the chronology of the historical events. B The author omitted the factual details, because readers already know them. C The author enhanced the drama by altering the description of the enemy troops. D The author created a sense of danger by changing the setting of the event.

Answers

Answer:the answer is C

Answer:

C

Explanation:

I'm doing this test now and I just got it right :)

How does the vacuole help the cell survive? (function)

Answers

Answer:

it stores water for the cell

which of the following instruments id used to describe how much matter is an object ​

Answers

Answer:

Mass measures the amount of matter in a substance or an object. The basic SI unit for mass is the kilogram (kg). Volume measures the amount of space that a substance or an object takes up.

Hope it help

The answer is triple beam balance.

How many moles of NaCl are in a 1 kg salt packet? Write the answer to one decimal place.

Answers

1Kg = 1000g

the molar mass of NaCl = 58.44 g/mol

number of moles = Mass / Molar mass

n = 1000g ÷ (58.44 g/mol)

n = 17.1115 mol

since you want the answer in one decimal place

then number of moles = 17.1 moles

Please I'm begging for help. I'll give you ALL MY POINTS. JUST PLEASE HELP.

Worksheet: Balancing Equations


Fill in the blanks with the most appropriate term:

A ________________ ________________ tells the story of a chemical reaction. ________________ are the starting substances in the reaction while ________________ are the new substances that are formed. The large numbers in front of some of the formulas are called ________________. These numbers are used to ________________ the equation because chemical reactions must obey the Law of ________________ of Matter. The number of atoms of each element on both sides of the equation must be ________________ because matter

cannot be ________________ or ________________. When balancing equations, the only numbers that can be changed are ________________; remember that ________________ must never be changed in order to balance an equation.


II. Balance the following equations:

1. Al + O2 Al2O3



2. C3H8 + O2 CO2 + H2O



3. P4 + O2 P2O3



4. KNO3 KNO2 + O2



5. O2 + CS2 CO2 + SO2



6. KClO3 KCl + O2



7. N2 + H2 NH3



8. NaF + Br2 NaBr + F2



9. Al + HCl H +AlCl3



10. WO3 + H2 W + H2O

Answers

Answer:

Explanation:

A Chemical Equation tells the story of a chemical reaction. Reactants are the starting substances in the reaction while Products are the new substances that are formed. The large numbers in front of some of the formulas are called Coefficients. These numbers are used to Balance the equation because chemical reactions must obey the Law of Conservation of Matter. The number of atoms of each element on both sides of the equation must be Equal because matter  cannot be Created or Destroyed. When balancing equations, the only numbers that can be changed are Coefficients; remember that Subscripts must never be changed in order to balance an equation.

Q1) 4Al + 3O2 ---> 2Al2O3

Q2) C3H8 + 5O2 -----> 3CO2 + 4H20

Q3) P4 + 3O2 -----> 2P2O3

Q4) 2KNO3 -----> 2KNO2 + O2

Q5) 3O2 + CS2 ------> CO2 + 2SO2

Try the rest out and tell me did you understand it?

A meniscus must be considered when making which of the following measurements?

Answers

Answer:

When you read a scale on the side of a container with a meniscus, such as a graduated cylinder or volumetric flask, it's important that the measurement accounts for the meniscus. Measure so that the line you are reading is even with the center of the meniscus. For water and most liquids, this is the bottom of the meniscus. For mercury, take the measurement from the top of the meniscus. In either case, you are measuring based on the center of the meniscus. For a flat meniscus, make sure the liquid is level. Usually placing the container on a lab bench does the trick.

You won't be able to take an accurate reading looking up at the liquid level or down into it. Get eye level with the meniscus. You can either pick up the glassware to bring it to your level or else bend down to take measurements in situations where you're concerned with dropping the container or spilling its contents.

Use the same method to take measurements each time so that any errors you make will be consistent.

Explanation:

Coral reef are threatened today mainly because

Answers

Answer: Pollution.

Explanation: Humans are polluting Earth's oceans with our toxic waste and plastic garbage. This trash kills the coral reefs that exist in said oceans.

Answer:

Really pollution because that includes a lot of things

Explanation:

Have a good day

What causes liquid water to freeze?

Answers

Answer:

Loss of energy to a colder material. Ice forms at 32°F /0° C.

Explanation:

As water cools, the natural movement between the molecules slows until it changes to a solid state (just as it boils to gas if they become too active). This movement doesn't completely stop until the material hits "absolute zero" at -460°F /-273° C. (0° Kelvin).

That's about the temperature "in the shade" in outer space.

A more interesting question would be, "why does water expand when it freezes?" The H - two - O molecule forms a triangle (with the O in the middle).

As it cools, the angle formed by the two H's gets larger. At around 36°F /2° C , the shrinking space between molecules gets overwhelmed by the expanding size of each molecule.

So, for those last few degrees before freezing, the overall volume gets bigger instead of continuing to decrease.

That's what causes potholes in roads (water settles into cracks, then makes the crack larger as it freezes). It's what damages the eaves trough around your roof, breaks leaves down into topsoil and splits boulders in half.

A buffer solution is prepared by adding NaC2H202
to a solution of HC2H2O2 (acetic acid).
HC2H2O2(aq) = H+ (aq) + CH3O2 (aq)
What happens if HCl is added?

Answers

Shift to reactants(left)

Further explanation

A buffer solution is a solution that can maintain a good pH value due to the addition of a little acid or a little base or dilution.

The buffer solution can be acidic or basic

Acid buffer solutions consist of weak acids and their salts.  

A buffer solution of NaC2H202    and HC2H2O2 (acetic acid) is included in the acid buffer

So :

a slight addition of acid (H⁺) will be balanced by the conjugate base

the addition of a small base (OH⁻) will be balanced by the weak acid

With the addition of acid (H +), the equilibrium will shift to the left, in the formation of CH3COOH. The added acid will be neutralized by the conjugate base component (CH3COO−).

How does heat transfer work?

Answers

Answer:

Conduction is one of the three main ways that heat energy moves from place to place. The other two ways heat moves around are radiation and convection. Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules

Explanation:

I've tried looking it up but I can't find an answer. Please help with this question.

Answers

Answer:

Hydrocarbons

Explanation:

Answer:

Monomers

Explanation:

An organism can occupy more than one niche in an ecosystem

A) True
B) False

Answers

Answer T

Explanation:

two students noted that the acceleration of a car was =40 k/m squared . the fiesta student , "that can't be right . you can't have a negativo acceleration ."second student said , "that can't be right , you can't have seconds squared .
what would you say to each student to help them More better understand how acceleration Is described

PLEASE ANSWER ASAP,FOR MY SCIENCE TEST ​

Answers

Answer:

First one: Yes, It can be negative.

Explanation:

First one: The reason you can have negative acceleration is that acceleration can slow down, or decelerate, causing the negative acceleration.

A tub is filled to the brim with water.
If you were to completely submerge
your body in this tub, how much water
would overflow out of the tub?

Answers

At least a quarter of it or maybe even two thirds it depends on your body mass/weight

The volume of water that would overflowed out of the tub is directly related to the volume of the object submerged on it. Thus it depends on the mass and density of the object.

What is Archimedes principle?

The Greek mathematician and inventor Archimedes discovered the physical law of buoyancy, which states that any body completely or partially submerged in a fluid (gas or liquid) at rest is subject to an upward, or buoyant, force whose magnitude is equal to the weight of the fluid displaced by the body.

The volume of fluid that has been displaced is equal to the volume of an object that is completely submerged in the liquid or to the portion of the volume below the surface for an object that is only partially submerged.

The buoyant force's strength is equal to the weight of the fluid that has been dispersed. A body floating in a liquid or gas experiences an analogous buoyant force.

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Why does the reaction proceed more quickly when the surface area is increased?

Answers

when particles collide with the surface of the solid.

The reaction proceed more quickly when the surface area is increased because the frequency of collision increases.

What is Collision theory?

Collision theory states that for a chemical reaction to proceed, it should achieve these conditions-

Molecules/atoms must collideThe particles must collide in right orientationThe particles must collide with enough energy

Increasing the surface area increases the probability of effective collisions. It thus increases the probability of the three conditions being achieved and results into increase in the frequency of collision and thus increases the rate of reaction.

Therefore, the reaction proceed more quickly when the surface area is increased because the frequency of collision increases.

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ASAP!!!!! Just answer the reasoning and the story is there if you need it (probably do though)

Answers

Ok so it’s A because if the bacteria got exposed to that same mold that killed the first colony then it will happen again

How many moles are found in 6.63 x 10^23 ions of Ca ^+2

Answers

Answer:

a milllion moles

Explanation:

Reyna is making a mixture of lithium chloride (LiCl)) and water (H2O). The lithium chloride completely dissolves in the water, LiCl (aq). What is the solvent?

Answers

Answer:

Water

Explanation:

The solvent that formed this mixture is the water. The solute is lithium chloride.

A solvent is the fluid medium which allows a solute to dissolve. A solute is a solid substance which is dispersed in the solvent

Since the solvent is the dissolving medium, it is stated in the problem that lithium chloride completely dissolves in the water.

Therefore, the water is the solvent.

How many atoms of Carbon are in 4 C3H5012?(10 points)

Answers

Answer:

In carbon there are 12 atoms.

Explanation:

You need to multiply the coefficient, in this case the coefficient is a 4 to Carbon's (C) Subscript which is 3, to find out how many atoms it has. (4)(3)=12

the half reaction of an oxidation-reduction shows that iron gains electrons. what does this electron gain mean for iron?

a. it’s neutralized
b. it’s oxidized
c. it has dissolved
d. it’s reduced
e. it has precipitated

Answers

Answer:

d. it’s reduced

Explanation:

An oxidation-reduction reaction, commonly known as REDOX reaction is a type of reaction that involves the transfer of electrons from one atom to another characterized by a change in oxidation number. The atom that loses electrons is said to be OXIDIZED while the atom that gains electrons is said to be REDUCED.

Therefore, in this question describing the half reaction of an oxidation reduction to show that iron atom (Fe) gains electrons. This indicates that the IRON atom is being REDUCED because it's oxidation number will reduce after gaining electrons.

The illustration above represents what concept?
A.) Natural selection
B.) Homologous structures
C.) Adaptation
D.) Variation

2.) A fossil that is characteristic of a particular span of geological time or a specific environment is called a(n):
A.) Index fossil
B.) Cast fossil
C.) Petrified fossil
D.) Mold fossil

3.) How is artificial selection different from natural selection? Select the best answer from the choices below.

A.) In artificial selection, animals. that are more likely to survive reproduce.
B.) In artificial selection, members of a species must complete to survive
C.) In natural selection, people impact. which traits are passed on
D.) In artificial selection, humans choose which organisms reproduce.
PLEASE HELP!!!​

Answers

Answer:

3 Is D

Explanation:

The pressure of a gas in a tank is 3.20 ATM at 22.0°C if the temperature is increased to 60.0°C what will the new pressure in the tank be

Answers

Answer:

P₂ = 3.61 atm

Explanation:

Given data:

Initial pressure of tank = 3.20 atm

Initial temperature = 22.0°C

Final temperature = 60.0°C

Final pressure = ?

Solution:

Initial temperature = 22.0°C (22.0 +273 = 295 K)

Final temperature = 60.0°C (60 +273 = 333)

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

3.20 atm / 295 K = P₂/333 K

P₂ = 3.20 atm × 333 K / 295 K

P₂ = 1065.6 atm. K /295 K

P₂ = 3.61 atm

Answer:

The answer is 3.61

Explanation:

reI did all the math and everything, the pressure is 3.61

Convert into decimal number system​

Answers

Answer:

Explanation:

I am sorry but please give detailed question

Answer:

Step 1 − Divide the decimal number to be converted by the value of the new base.

Step 2 − Get the remainder from Step 1 as the rightmost digit (least significant digit) of new base number.

Step 3 − Divide the quotient of the previous divide by the new base.

Step 4 − Record the remainder from Step 3 as the next digit (to the left) of the new base number.

Repeat Steps 3 and 4, getting remainders from right to left, until the quotient becomes zero in Step 3.

Explanation:

Match each type of mass movement to its description.
the rapid downhill flow of a mixture of rock,
soil, and water
slump
mudflow
the slow downhill movement of rock and soil
creep
the rapid downhill movement of a mass of
rock, debris, or soil
landslide
a loosely connected mass of rock and soil
that moves a short distance

Answers

Answer: np

Explanation:

Correctly matched are :

landside - rapid movement of rock, debris, and soil. mudflow - mixture of rocks, soil, water. slump - loosely mass of rocks and soil.What is a landslide?

A landslide is also called a land slip. It refers to several forms of mass wasting and may include a wide range of ground movements. They occur in a variety of environments characterize by gentle and steep slope gradients.

The mudflow is a mixture of rocks and soil along with water. While a creep is a slow downloads movement of rocks and soil.

Find out more information about the mass movement.

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If an exothermic reaction heats a calorimeter with a total mass of 10 grams from 20°c to 30°c what is the total enthalpy change for the reaction? assume that the specific heat capacity of the system is 2 j/g⋅k.

Answers

The total enthalpy change for the reaction is 200 J.

During an exothermic reaction, heat is released from the system which leads to an increase in its temperature.

The enthalpy change during an exothermic reaction is given by the equation,

Q= m × S × ΔT

Here, Q ⇒ Enthalpy change during a reaction

m ⇒ Mass of the substance

S ⇒ Specific Heat Capacity of the system

ΔT ⇒ Change in temperature of the system

On applying the given values in the above equation, we get the value of enthalpy as

Q= 10 x 2 x 10

  = 200 J.

Hence, the total enthalpy change for the reaction is 200 J.

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15. Which of the following would be comprised of atoms?
O emotions
Olight
O paper
O sound

Answers

Answer:

Paper

Explanation:

This is because out of all of the above it is the only physical substance

What happens when an object
returns to its original shape-does it
still have elastic energy?

Answers

Answer:

Elastic potential energy is energy stored as a result of applying a force to deform an elastic object. The energy is stored until the force is removed and the object springs back to its original shape, doing work in the process. The deformation could involve compressing, stretching, or twisting the object.

How does blood flow from a person's leg back to the person's heart?

A Gravity pushes the blood upward.
B Lungs pull the blood upward.
C Contracting leg muscles push the blood upward.
D Contracting heart muscles pull the blood upward.

Answers

Answer:A Explanation:A.  Gravity pushes the blood upwards when you walk, stand or move at all, the muscles squeeze the veins and the blood flows. OFF G00GLE JUST REWORDED A LITTLE.
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