PLEASE HELP!!!!!!!!!!!!!


Which option would be an appropriate model of nuclear fission?

A. dividing a stack of paper equally between two people

B. taking a teaspoon of sugar from a bowl

C. disturbing a drop of water such that it breaks into smaller droplets

D. cutting a cake in half

Answers

Answer 1

Answer:C

Explanation:


Related Questions

Look at screen shot.

Answers

Answer:

If the cell was a city, what would the city have inside it for it to function as a cell?

Explanation:

The cell membrane can be a fence or wall around the city because it controls what enters and leaves the cell, and separates the cell from the outside.

The nucleus could be the city hall because it  protects DNA and controls the cell (city)

The mitochondria could be the greenhouse because it makes ATP energy from sugar + 02

The chloroplasts could be a farm or garden because it is where photosynthesis takes place and makes energy + sugar from sunlight

The ribosomes could be the factory to make stuff because it makes proteins

The endoplasmic reticulum could be a kitchen or restaurant because it helps finish proteins, and makes membranes.

The golgi apparatus could be the postal office because it finishes packages and ships proteins

The vacuoles could be a water tank because it storages water

I hope this helps. It is basically as if something was turning into a city-type thing. Like Lysosome could be a recycling center in a city.

lactase is an enzyme that breaks down a sugar found in dairy products known as lactose. Some people are lactose intolerant, and this can be due to not having enough lactase production. People who are lactose intolerant may not feel well after eating foods containing lactose. Illustrate the scenario and describe the relationship between the substrate and enzyme.

Answers

Answer

If people with lactose intolerance eat dairy products, the lactose from these foods pass into their intestines, which can lead to gas, cramps, a bloated feeling, and diarrhea.

Some people can have small amounts of dairy without problems. Others have a lot of stomach trouble and need to avoid all dairy products. Many foods, drinks, and digestive aids are available to help manage lactose intolerance.

Explanation:

Which of the following is a unit of length? O A. A liter O B. A kilogram C. A meter O D. A degree​

Answers

Answer:

C.) A meter

Explanation:

someone help me please i need to finish this

Answers

the answer is D hope it helps :)

➪What Is an Acid?❦⭐⭐❦​

Answers

Answer:

a chemical that burns stuff

Explanation:

acid is something that burns it like that it goes thru it

Answer:

Acid is a sour material which have pH value less than. 7

At this location, it is summer in the Northern Hemisphere because the North Pole is tilted

Away from the sun

Towards the sun

Answers

Answer:

This happens twice a year during Earth's orbit. Near June 21 the north pole is tilted 23.5 degrees toward our Sun and the northern hemisphere experiences summer solstice, the longest day of the northern hemisphere year.

...

Do other planets have seasons?

Uranus

30,589

97.8

Spring Equinox* 2050

Summer Solstice*

points toward the sun.

closer the earth is to the sun the more  hot it will be the closer it is to summer,

you can see at D northern hemisphere is closest to sun and the north pole is pointing toward the sun.

Use the periodic table to answer the question.

A chemical reaction produces a molecule in which all of the atoms have a stable configuration. Which molecule could be the product of the reaction?

(1 point)

SiO

PH3

MgBr

KCl2

Answers

The product of this reaction is PH3. All of the atoms in PH3 have a stable configuration.

According to the octet rule, atoms are stable when they have two or eight electrons around their outermost shell. A stable configuration is one in which the outermost shell is fully filled with eight electrons.

The reason behind chemical combination is to enable atoms attain this stable configuration. If we look at the compound, PH3, we will notice that phosphorus has eight electrons around its outermost shell while each hydrogen atom has two electrons around its outermost shell hence  all of the atoms have a stable configuration.

Learn more: https://brainly.com/question/10609459

Answer:ph3

Explanation:yeah

Q13. Which of the following is a balanced chemical equation for the reaction between potassium carbonate soletion and hyelrochlori acid. 1​

Answers

Answer:

Below

Explanation:

2HCl + K2CO3 -> 2KCl + CO2 + H2O

how many molecules of oxygen are needed to make 3.5 oxygens of water?​

Answers

Answer:

57.6g

Explanation:

So, if in one mole of water, 16 g of oxygen atom is present. Then, in 3.6 moles of water, the mass of oxygen present will be 3.6×16=57.6g. Therefore, the amount of oxygen present in 3.6 g water is option (B)- 57.6 g.

What types of safety procedures need to be followed when handling and transporting nitric acid?

Answers

Answer:

wear safety glasses, a face shield, gloves.

Explanation:

Nitric Acid Safety, Handling & First Aid When handling nitric acid in the workplace, we strongly recommend you wear chemical safety glasses, a face shield for splash protection, gloves, and an approved vapor respirator if adequate ventilation is not available. I found this online. Hope it helps!

Science science science science

Answers

Answer:

science?? i guess

:\

Explanation:

Answer:

The 5000 kilogram truck

Explanation:

The 5000 kilogram truck is using less force to move vs the 10000 kilogram truck because 5000 kilogram truck is lighter and so needs half the speed as the 10000 kilogram truck.

is mixing acid and base a chemical change or a physical change

Answers

Answer : chemical reaction

Mixing an acid with a base is a common chemical reaction.

Answer:

It is a chemical reaction.

Explanation:

Mixing acid and base is a common chemical reaction.

(I had my answer in the comments bc at the time I couldn't submit it as a answer so here ya go)

Hope this helps! :)

There are 300 light particles in an airtight container. Which adjustment would increase the speed of the particles?

A. keeping the volume constant and replacing the light particles with heavy particles

B. keeping the pressure constant and increasing the temperature

C. keeping the volume constant and cooling the container

D. keeping the temperature constant and increasing the container volume

Answers

There are 300 light particles in an airtight container. The adjustment that would increase the speed of the particle is keeping the pressure constant and increasing the temperature. Option B is correct.

The speed of a particle is the distance traveled by one molecule of a substance. Particles travel as a result of the kinetic energy they possess.

The kinetic energy attributed to each particle rises as the temperature rises.

As a result, in 300 light particles, the particles will travel more quickly when the temperature is increased while the pressure of the particle remains constant.

Therefore, we can conclude that the adjustment that would increase the speed of the particles is keeping the pressure constant and increasing the temperature.

Learn more about particles here:

https://brainly.com/question/2288334?referrer=searchResults


Select the coefficients necessary to balance each equation. Choose a coefficient for every compound.

Photo included

Need help, please teach me how to solve it!

Answers

Answer:

See below

Explanation:

2C2H6 + 7O2 = 4CO2 + 6H2O

2C2H2 + 5O2 = 4CO2 + 2H2O

A lot of this is trial and error.  I start from left to right.  For the first reaction, you had

C2H6 + O2  =  CO2  +  H2O

You have 2 carbons on the left so you can try adding a 2 in front of the carbons on the right and keep going from there.  Now you have

C2H6  +  O2  =  2CO2  + H2O

You now have 2 C on each side.  C2 is the same as 2C.

The next step is to look at the hydrogens on the left.  You have 6 so you need 6 on the right.  You can add a 3 in front of the H on the right.  The H already has a subscript of a 2 so having the 3 in front will now make it 6H.  You now have this

C2H6  +  O2  =  2CO2  +  3H2O

So your C are equal (2 on each side) and your H is equal (6 on each side).  All that is left is the O.  So far you have 2 on the left but you have 7 on the right (4 from the 2CO2 and 3 more from 3H2O).  Since you have an even number on one side and an odd number on the other, there is no way to make this work.  So it's time to start over.

My next step was to put a 2 in front of C2H6 and keep going as we did above.  Start with this

2C2H6   + O2  = CO2  + H2O

You have 4 C on the left.  So you need to add a 4 in front of CO2 to get 4 C on the right.  Now you have this

2C2H6  +  O2  =  4CO2  +  H2O

Now on the left you have 12 H (2 in front times the 6 subscript on the H).  You need to have 12 on the right.  We can get that by putting a 6 in front of the H2O ( again the 6 in front times the 2 subscript of the H is 12 total).  You have this now

2C2H6  +  O2  = 4CO2  +  6H2O

You now have 4 C on both sides, 12 H on both sides.  All that is left now is the O.

On the right side, you have a total of 14 ( 8 from the 4CO2 and 6 from 6H2O).  So you'd need to add 7 in front of the O2 to make it 14.

You're done.  4 C on both sides, 12 H on both sides and 14 O on both sides.

The second equation I just did the same process.

120 g of KI at 0 °C solution is

Answers

Answer:

i dont care to you

Explanation:

cause you are tuyo

solution is 9°5

Which statement is true about a neutral solution?
Its pH is less than 7.
Its pH is greater than 7.
It has the same concentration of hydronium and hydroxide ions.
It has a greater concentration of hydroxide ions than hydronium ions.

Answers

Answer:

C. It has the same concentration of hydronium and hydroxide ions.

Explanation:

A neutral solution means that it's a balanced substance that is neither a base nor an acid. For example, pure water is a neutral substance.

(I also did the test for this and I got it correct.)

Hope this helps any future people doing this! :)

Answer:same concentration of hydronium and hydroxide ions (C)

Explanation:

Where is the independent variable usually located in a scientific table?

Third through fifth columns
First and second columns
First column
Second column

Answers

Answer:

First column

Explanation:

In most cases, the independent variable (that which you purposefully change) is in the left column, the dependent variable (that which you measure) with the different trials is in the next columns, and the derived or calculated column (often average) is on the far right.

many substance are compound what is a compound

Answers

Chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. All the matter in the universe is composed of the atoms of more than 100 different chemical elements, which are found both in pure form and combined in chemical compounds.

Answer:

A compound is a unique substance that consists of two or more elements combined in fixed proportions.

Explanation:

okkk

Tom tells Greta that his father, an astronomer, is planning a scientific experiment to study another galaxy. Using a powerful telescope, Tom's father will record data of shifts in light patterns and track their different sources every 30 seconds. He will later study the data. Greta says that this is not an experiment. Which of these reasons supports Greta's statement?


It is not performed in a lab.


There are too many variables.


It does not have a control group.


It uses only theoretical predictions.

Answers

Answer:

it does not have a control group

A 10.35 kg block of ice has a temperature of −22.3 °C. The block absorbs 4.696 x 10^6 J of heat. What is the final temperature of the liquid water?

Answers

Answer:

: A 10.35 kg block of ice has a temperature of - 22.3 degree C. The block absorbs 4.696 times 10^6 J of heat. What is the final temperature of the liquid water?

Previous question: A 10.35 kg block of ice has a temperature of - 22.3 degree C. The block absorbs 4.696 times 10^6 J of heat. What is the final temperature of the liquid water?

Previous question: A 10.35 kg block of ice has a temperature of - 22.3 degree C. The block absorbs 4.696 times 10^6 J of heat. What is the final temperature of the liquid water?

Previous question: A 10.35 kg block of ice has a temperature of - 22.3 degree C. The block absorbs 4.696 times 10^6 J of heat. What is the final temperature of the liquid water?

Previous question

Explanation:

please help my little brother on this I don't get it either free brainless ​

Answers

Answer:

igneous rock is the correct answer

How deep is the real pond?
A. 24 cm
B. 63 cm
C. 18 cm
D. 7 cm

Answers

Answer:

24

Explanation:

The average size of most ponds is 10′ x 15′ (roughly 150 square feet) with the deepest point being 24″. If you have underwater shelves for plants they usually go 12″ down.

- BRAINLIEST answerer ❤️

63. B is your answer.

the HCO3 -1 ion is called

Answers

Answer:

Isn't that the bicarbonate Ion?

The element that is in the same family as element C (gas) is likely to have which properties. 2 valence electrons, solid, metal 6 valence electrons, gas, nonmetal, 6 valence electrons, solid, nonmetal, 2 valence electrons, solid, nonmetal

Answers

Answer:

that element is likely to be a non metaland a gas

what would the heat transfer be if you are making macaroni and it rises and falls in a pot on the stove ?

Answers

Convection

Convection is transfer of heat through fluid (liquid or gas) caused by their molecular motion. In convection, heat current flows in a vertically upward direction. Macaroni rising and falling in a pot of boiling water is due to convection

characteristic of compounds​

Answers

Answer:

Characteristics of a compound

The properties of a compound are different from the properties of its constituents. Formation of a compound is generally accompanied by evolution of energy in the form of heat or light. A compound has a fixed melting point and boiling point. A compound is always homogeneous in nature.

marking brainliest hurry !

What does Newton's first law of motion state?

Every action has an equal and opposite reaction.
A body at rest will stay at rest until it is acted upon by another object.
The amount of force acting on an object is equal to its mass times its acceleration.
All objects that have mass attract each other with a force that depends on their mass.

Answers

Answer:

B. A body at rest will stay at rest until it is acted upon by another object

Explanation:

Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.

What is an ionic bond?

A. A bond that forms when electrons are transferred from one atom to another
B. A bond that forms when the electrons of two different atoms repel each other
C. A bond that forms when two atoms with neutral charges come close to one another
D. A bond that forms when one atoms nucleus comes close to another atoms electrons

Please answer!!! No links please!!!

Answers

Answer:

A. A bond that forms when electrons are transferred from one atom to another

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Answer:

A. A bond that forms when electrons are transferred from one atom to another

✞What Is an Alloy?⭐⭐​

Answers

A alloy is a red chicken

what is the net ionic equation for ammonium chloride and sodium hydroxide

Answers

Answer:

In the complete ionic equation, soluble ionic compounds and strong acids are rewritten as dissociated ions. write the ionic and net ionic equation for this equation: Ammonium Chloride + Sodium Hydroxide NH_4Cl + NaOH = NH_3 + H_2O + NaCl There are so many chemical reactions that occur around us that we classify them into different types.

Explanation:

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