what is a consquence of electron pair repulsion around an atom

Answers

Answer 1

Answer: Option c

Explanation:


Related Questions

How may moles are in 88.4 grams of Al(OH)3?

Answers

Answer:

1.133mol Al(OH)3

Explanation:

88.4/78.003 = 1.133

define the term pure substance​

Answers

Answer:

Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure. Pure substances are further classified as elements and compounds. An element is a substance that consists of only one type or kind of atom

Answer:

define the term pure substance​ :

A pure substance does not have to be of a single element or compound, This can either be one single element or one single compound, but every sample of this substance that you examine must contain exactly the same thing with a fixed, definite set of properties

Explanation:

Why does the moon have a stronger gravitational effect on the earth then the sun?

Answers

Explanation:

The tidal forces of the Moon are much stronger than the Sun's because it is so much closer to our planet, causing a much greater variation in the gravitational force from one location to another. The Sun's gravitational force, on the other hand, varies much less because the Sun is so far.

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WHAT CAN BE USED TO REPLACE OIL? help 30POINTS!!!!! ASAP

Answers

Answer:

Melted butter

Explanation:

Answer:

Look below

Explanation:

The following may be substituted cup for cup for vegetable oil in baked goods:

Applesauce, preferably unsweetened.

Banana, ripe and mashed.

Butter, melted.

Cauliflower – unseasoned, cooked, and pureed.

Ghee.

Margarine, melted.

Mayonnaise.

Pumpkin, cooked and pureed.

Complete the missing information in the reactions. Then, label the reaction one of the following:
Alpha Decay
Electron Capture
Beta Decay
Positron Emission
.
14
N +
0
Type:
238
92
234
90
Th +
Type:
15
0
15
N +
7
Type:
8
0
32
15
Type:
105
Ag +
47
105
Pd
46
Type:
40
Type:
20
I
244
94 Pu -
Type: :

Answers

50 i’m not sure though sorry

In a city, the buildings, streets, air,
and water are all ______
parts of the environment.

Answers

Answer:

living part of the environment

A reaction is first order with respect to reactant A and second order with respect to reactant B. Starting with [A] = 0.175 M and [B] = 0.00250 M, the reaction rate is 2.83 x 10−5 M.S−1. What is the rate constant k? Show your work.

Answers

Answer:

[tex]k=25.9M^{-2}s^{-1}[/tex]

Explanation:

Hello there!

In this case, since rate laws are written by considering the rate constant, concentration and specific orders of reaction of the concentration of the species contributing to the rate of reaction, we write:

[tex]r=k[A][B]^2[/tex]

Since it is first-order with respect to reactant A and second-order with respect to reactant B. In such a way, given the rate and concentrations of both A and B, the involved rate constant k turns out to be:

[tex]k=\frac{r}{[A][B]^2} \\\\k=\frac{2.83x10^{-5}M/s}{(0.175M)(0.00250M)^2}\\\\k=25.9M^{-2}s^{-1}[/tex]

Best regards!

6th grade science plz help Major grade Need help with 4,5, and 6

Answers

4=population, 5 and 6 are ecosystem

Identify one factor represented in the diagram that is used to classify the ten types of clouds

Answers

Low clouds
Stratus clouds are uniform grayish clouds that often cover the sky. Usually no precipitation falls from stratus clouds, but they may drizzle. When a thick fog “lifts,” the resulting clouds are low stratus. Nimbostratus clouds form a dark gray, “wet” looking cloudy layer associated with continuously falling rain or snow. They often produce light to moderate precipitation.

Middle clouds
Clouds with the prefix “alto” are middle-level clouds that have bases at 6,500 to 23,000 feet up. Altocumulus clouds are made of water droplets and appear as gray, puffy masses, sometimes rolled out in parallel waves or bands. These clouds on a warm, humid summer morning often mean thunderstorms by late afternoon. Altostratus clouds, gray or blue-gray, are made up of ice crystals and water droplets. They usually cover the sky. In thinner areas of them, the sun may be dimly visible as a round disk. Altostratus clouds often form ahead of storms that produce continuous precipitation.

High clouds
Cirrus clouds are thin, wispy clouds blown by high winds into long streamers. They are considered “high clouds,” forming at more than 20,000 feet. They usually move across the sky from west to east and generally mean fair to pleasant weather. Cirrostratus, thin, sheetlike clouds that often cover the sky, are so thin the sun and moon can be seen through them. Cirrocumulus clouds appear as small, rounded white puffs. Small ripples in the cirrocumulus sometimes resemble the scales of a fish, creating what is sometimes called a “mackerel sky.”

Vertical clouds
Cumulus clouds are puffy and can look like floating cotton. The base of each is often flat and may be only 330 feet above ground. The top has rounded towers. When the top resembles a cauliflower head, it is called “cumulus congestus.” These grow upward and if they continue to grow vertically can develop into a giant cumulonimbus, a thunderstorm cloud, with dark bases no more than 1,000 feet above ground and extending to more than 39,000 feet. Tremendous energy is released by condensation of water vapor in a cumulonimbus. Lightning, thunder and violent tornadoes are associated with them.

I used a stick of (vegan) butter as our example of thinking about how temperature changes the properties of something when it is wamer or cooler.

1. What is something else you could use to describe how temperature affects the properties of when it is warmer or cooler? How does this change whether it is warm or cold. Describe it.

Answers

Oh ok it says it hablar to be 20 characters

What type of energy must you add to a substance to make the particles of the substance
move faster?

A. thermal

B. potential

C. mechanical

D. geothermal

Answers

Answer: thermal  energy a}

Explanation:

Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.

A. thermal
B.potential

Answer is A


URGENT!!! ANSWER ASAP!!!!
A student with the flu was given medication that tasted bitter. Other than taste, which other test would confirm which type of compound was in the medication? Chose the two statements that apply.

A. It feels slippery
B. It reacts with metal
C. It turns blue litmus red
D. It turns red litmus blue

HINT!!! it is not B and D.... one of them could be right. but the other is wrong. pls help meeeee!!!!


PLS HELP

Answers

Answer:

C

Explanation:

 i hope i helped you and have a nice day...

what is my name?
chetana
ikshya
grishma
bhumika
puja​

Answers

they're name of bunch of girls.

__MgCl2 +
_Na3PO4 -->
NaCl
_Mg3(PO4)2 +
---
In the reaction above, how many moles of sodium chloride would be produced
if you started with 20 grams of magnesium chloride and excess sodium
phosphate? The equation is not balanced.
(If anyone can answer in depth if appreciate it )

Answers

Answer:

24.5 g of NaCl

Explanation:

We begin from the balanced reaction:

3MgCl₂ +   2Na₃PO₄  →    6NaCl   +  Mg₃(PO₄)₂

If the sodium phosphate is in excess, then the limting reagent is the magnessium chloride.

We convert mass to moles:

20 g . 1mol / 95.2g = 0.210 moles.

3 moles of MgCl₂ can produce 6 moles of NaCl

0.210 moles of salt, may produce (0.210 . 6) /3 = 0.420 moles

Ratio of reactant is twice the product

We convert the moles to mass:

0.420 mol .  58.45 g/mol = 24.5 g

please help im so bad at science

Answers

a.bond energy

c. endothermic reaction

d. exothermic reaction

f.exothermic

g.endothermic

What is the percent composition of water found in tin (IV) oxide octahydrate?

Answers

Answer:

tin (IV) oxide octahydrate contains 8 part water

What is the percent composition of water found in tin (IV) oxide octahydrate?

The answer to this question

Answers

Answer:

C. seems to be the answer as ionic comlopunds have high melting points becuase of the anion cation bond which is not seen in covalent bonds that share electrons in polar arragnements.

Explanation:

Answer:

I think is B hopefully is

How many molecules of water are there in 10 lbs of water?

Answers

55.556

Explanation:

or something like that

2 Na + Cl2 --> 2 NaCl
What is the mole ratio of chlorine to sodium chloride?

Answers

Answer:

1 : 2 ratio

Explanation:

Chlorine has a coefficient of 1, and sodium chloride has a coefficient of 2.

Can I find the state of Ca3N2 using the solubility rules? If so how because there is no Nitride in the solubility tables, I don't understand.

Answers

Answer:

The day I was in the shower and I will be there at remove the day I was in the shower and I will be there at remove the day to see if you have any questions please feel free to contacts and the day I was in the shower and I will be there at remove the day I was in the shower and I will be there at remove the days of the week are you

Explanation:

because the calcium is combine with the nitride so the total solubility will change forming Ca3N2

3 of 12
Assessment: Force and Motion CBA
Four students recorded the time it took them to walk to school from their homes as shown in the table
below.
Student
1
2
3
Motion of Four Students
Distance (meters) Time (minutes)
1,100
20
1,026
19
848
16
795
15
4
Which student had the greatest average speed?
Student 1
Student 2
Student 3
Student 4
1
2
3
4
5
6
7
8
9
10
Next

Answers

The answer is 1,026 students hope this helps

help help like rn pls!!!!

Answers

Answer:

1.T

2.T

3.T

4.F

5.F

6.T

7.T

8.F

9.T

10.T

11.F

12.S

13.T

maaf kalo salah

which gas would diffuse rapidly at the same temperature and pressure UF6 or CL2

Answers

Answer:

UF6

Explanation:

i need to write a brief paragraph on why this lab is important, please help!! here is the question!
How can the properties of acids and bases be used to classify solutions?

Answers

Answer:

Acids and bases aqueous solutions will conduct electricity because they contain dissolved ions. Therefore acids and bases are electrolytes. strong acids and bases will be electrolytes. weak acids and bases will be weak electrolytes.

9. Circle the atom in each pair that has the greater ionization energy.

A) Li or Be
B) Ca or Ba
C) Na or K
D) P or Ar
E) Cl or Si
F) Li or K

Answers

A: BE has more ionization energy than LI

B: CA has more ionization energy than BA.
C: NA has more ionization energy than K

D: AR has more ionization energy than P

E: CI has a more ionization energy than SI
F: LI has more ionization energy than K


If any of these are wrong feel free to correct me in the comments.

A) Be

B) Ca

C) Na

D) Ar

E) Cl

F)  Li

This question simply deals with ionization energy trends across the periodic table or down the group.

Ionization energy is the energy that is needed to remove an electron from its orbital around an atom in such a manner that it will no longer be associated with that same atom.

Now, from studies, it has been found that Ionization energy decreases down a group but it tends to increase as we go from the left to right going across the periodic table.

A) Li(Lithium) and Be(Berrylium) belong to the same period which is period 2 on the periodic table. Berrylium comes after berrylium in that period and as such from the rule earlier, berrylium will have the greater ionization energy.

B) Ca(Calcium) and Ba(Barium) belong to the same group 2 in the periodic table with barium further down the group. Thus, from the trend, Ca(Calcium) will have the greater ionization energy.

C) Na(Sodium) and K(Potassium) belong to the same group 1 in the periodic table with potassium further down the group. Thus, from the trend, Na(Sodium) will have the greater ionization energy.

D) P(Phosphorus) and Ar(Argon) belong to the same period which is period 3 on the periodic table. Argon comes after Phosphorus in that period and as such from the rule earlier, argon will have the greater ionization energy.

E) Cl(Chlorine) and Si(Silicon) belong to the same period which is period 3 on the periodic table. Cl(Chlorine) comes after Si(Silicon) in that period and as such from the rule earlier, Cl(Chlorine) will have the greater ionization energy.

F) Li(Lithium) and K(Potassium) belong to the same group 1 in the periodic table with potassium further down the group. Thus, from the trend,  Li(Lithium) will have the greater ionization energy.

Read more at: brainly.in/question/13610645

PLZZZZZZZZ HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ PLZ PLZ PLZZZZZZZ these are satellite images taken of the same area in 1986 and in 2020 what can these images be used to monitor

Answers

C. How land use has changed over time.

Answer:

I believe it is how land use changed over time

Explanation:

The images only show us the labels of communities and farm land/ forests. There is no evidence to support that this map would be monitoring water quality, pollution, etc. The only visible change is the change in land.

The pH of a solution is 9.67. Calculate [H+] for the solution

Answers

Answer:

2.14 x 10^-10 M

Explanation:

[H+] = 10^(-pH) = 10^-9.67 = 2.14 x 10^-10 M

What is the average speed of a race car if it travelled a total of 500 miles in 3.5 hours

Answers

Answer:

speed = 142.8571 miles per hour OR 142.8571 mi/h

Explanation:

speed= [tex]\frac{distance}{time}[/tex]

distance = 500,    time = 3.5hours or 210 minutes

speed= [tex]\frac{500}{210}[/tex]  = 142.8571

hope this helps!!!!

Determine the products when aqueous solutions of CoCl2 and Na3PO4are reacted together.

Answers

Answer: NaCl+Co3(PO4)2

Complete the sentence:
The north pole of a magnet____ the north pole of another magnet.
-will attract
-may repel, attract, or not affect
-will not affect
-will repel

Answers

the north pole of the magnet will repel the north pole of another magnet

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The triangle and the trapezoid have the same area. Base b2 is twice the length of base b1. What are the lengths of the bases of the trapezoid? The area of the triangle is 65 cm squared PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!Where theres hope theres life. It fills us with fresh courage and makes us strong again. Anne FrankDo you agree with this quote Why or why not? Why do you think hope can be so powerful? Explain in 3-5 sentences. (I give branliest) Why does the author state that you should, "go ahead and let yourself, like Persephone, be tempted by the pomegranate".? Imagine that you are an exchange student calling home to tell your parents about your experience in New country. In 5-6 complete Spanish sentences talk about two or three of the following points. what you typically do every day. Some thing interesting you did last week. Where you are right now and what you were doing. Your feelings about being in a new country. Correct this sentence 1. Waterhouse Hawkins's dinosaurs were considered a remarkable artistic and scientific achievement in the 1800s. What modern-doy artistic or scientific achievement might be considered remarkable? How does it compare to Waterhouse Hawkins's dinosaurs? If f(x) = 4x - 6, what is f(6)?A. 32B. 3oC. 4O D. 18 a 1.4g sample of pure gas occupies a volume of 981 mL at 42C and 117 kPa. Determine the molar mass of the compound. Hey! I just got back from my student med internship and my French teacher assigned me a crazy assignment, does anyone mind helping me with this? Which of the following types of words must be capitalized?O The first and last word of every sentenceO First, last and main words in a book titleO All pronouns that are used in dialogueO I, only at the beginning of a sentenceExtremely easy! but I am not sure which one to pick. Please help ASAP! Only answer if you know the answer! Thank you! :) Please help its urgentAlexandra finds out that she can give 3 haircuts and 2 hair dyes in 315 minutes.Giving 2 hair cuts and 4 hair dyes takes 450 minutes.How long does it take her to do 1 haircut. 3x+2y=315 2x+4y=45030 minutes45 minutes60 minutes 3x+4y=450 90 minutes 2x+4y=315 why do you think meteors leave a trail of light as they move through the sky? PLEASE PLEASE PLEASE HELP I NEED HELP WITH THIS :((i will give brainliest:) Albino trees exist in nature, but theyre rare. These trees contain a gene mutation that causes them to lack chlorophyll, so their leaves are white. In California, albino redwood trees are parasites. They survive off the energy from nearby redwood trees. Why do you think they need to use energy from other trees to survive? Find the missing angle Look at this image.Gases extend away from a star and spiral into the center of a black hole. What is the main purpose of the arrow shown in the image?to create interest in the topic of astronomyto point out the effect of a black hole on a starto explain the formation of starsto reveal what will happen next Solve for the missing variable given the rhombus (8x+58) if a density of a wood is 0.5g/cm what is the mass of 2cm Select the Equation that has a solution of: (b=6)A.6+b = 8B.Sb = 48C.70 - b = 61D.11-6=4 How did Texas act to manage problems arising from the Dust Bowl in the 1930's?halted cattle drives through the PanhandleMoved major agricultural production out of the PanhandleBuilt windmills to power water pumpsChanged agricultural techniques to prevent erosion