can anyone do this?i dont understand it!

Answers

Answer 1

Sorry but I didn’t understand it

Related Questions

The table below shows two conclusions about atoms based on experiments by Rutherford and Thompson. Which of these statements best explains why Rutherford and Thompson visualized the atom differently? Atoms of different elements contain different particles. New experimental processes provide new scientific evidence. A single model of an atom cannot be agreed upon by all scientists. Scientists believe in proposing theories which contradict current theories.

Answers

Answer:

Scientists with varied experimental processes and interests perceive things differently.

Explanation:

Scientists believe in proposing theories which contradict current theories. So the correct option is D.

What are the atomic models?

Recently, the structure of atoms has been discovered. Before the ideal model of an atom was found, several others were proposed and abandoned.

Atomic Model of J.J. Thomson

In his hypothesis, Thomson compared the definition of an atom to that of a Christmas pudding.He claimed that atoms are made up of a positively charged sphere with embedded electrons.Additionally, he claimed that because the magnitudes of positive and negative charges are equal, an atom as a whole is electrically neutral.

Atomic Model of Rutherford

Rutherford experimented with α-particle scattering on a gold sheet.He noticed that the majority of the negative ions did not deflect when they travelled through the gold foil.Small angles were experienced by certain α-particles, whereas almost 180° was experienced by others.This experiment led Rutherford to the conclusion that an atom's nucleus, a positively charged spherical centre with a radius of 10-10 metres, contains almost all of the atom's mass (having a radius of 10–15 m).

Therefore the correct option is D.

Answers

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

In the dichromate ion, the oxidation number of chromium is+6. The sum of the oxidation numbers in Cr2O72-, a polyatomic ion, is -2, the charge of the ion.

HEEEELP!!! THIS IS DUE TODAY
What is one of the most important forms of energy? Give two examples of how this type of energy is used in our lives.

Answers

Public transportation uses electrical energy.
Refrigeration used electrical energy.

Answer:

"There is no God but Allah, and Muhammad is his messenger." This is the basic statement of the Islamic faith: anyone who cannot recite this wholeheartedly is not a Muslim. When a Muslim recites this they proclaim: That Allah is the only God, and that Muhammad is his prophet.

I hope u find the right path

Explanation:

This substance attaches to oxygen and carbon dioxide gas in the blood.

Answers

The answer would be hemoglobin

Answer:

If given a choice between blood cells, hemoglobin, plasma, platelets, the correct answer would be hemoglobin. Otherwise, the correct answer is hemoglobin.

The magnification of a light microscope can be found by multiplying the power of the eyepiece by the power of the objective lens. Calculate the magnifications of a microscope that has an 8X eyepiece, and 1OX and 40X objectives.

Answers

To calculate the total magnification of a microscope, we multiply the magnification of the eyepiece by the magnification of the objective.

For the 10X objective:

Total magnification = Eyepiece magnification x Objective magnification
Total magnification = 8X x 10X
Total magnification = 80X

So the total magnification for the combination of the 8X eyepiece and the 10X objective is 80X.

For the 40X objective:

Total magnification = Eyepiece magnification x Objective magnification
Total magnification = 8X x 40X
Total magnification = 320X

So the total magnification for the combination of the 8X eyepiece and the 40X objective is 320X.

Answer: For 10X objective =80X

For 40X objectives =320 X

Explanation: The magnification of a light microscope can be computed by multiplying the power of the eyepiece by the power of the objective lens.

For the 10X objective = power of eyepiece × power of objective lens

= 8X × 10X

= 80X

For the 40X objective = power of eyepiece × power of objective lens

= 8X × 40X

= 320X

Can NiF2 react with K to produce KF and Ni? Why or why not? Question 3 options: A) No, because Ni and K have lower activity than F B) Yes, because K has higher activity than Ni C) Yes, because K has lower activity than Ni D) No, because F and Ni have the same activity

Answers

Answer:

The correct option is;

B) Yes, because K has higher activity than Ni

Explanation:

The chemical equation for the reaction is as follows;

NiF₂ + K → 2KF + Ni

Based on chemical reactivity of the metals nickel and potassium involved in the reaction, we have;

On the activity series, potassium is higher up and therefore more reactive than nickel such that it can displace hydrogen from cold water while hydrogen will be evolved from only an acid in the case of nickel

Hence, the potassium will be able to replace Ni in the NiF₂ compound due to its higher reactivity such that we have;

2k (s) + Ni⁺² (aq) → 2k⁺ + Ni (s)

Answer:

Yes, because K has higher activity than Ni

Explanation:

How does an atom change if all of its electrons are removed?
p.s. I'll mark the first answer the brainliest if it is correct! ;)

a. The atom’s volume increases.

b. The atom’s mass increases.

c. The atom becomes positively charged.

d. The atom becomes negatively charged.

Answers

c. The atom becomes positively charged

if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom

C the atom becomes positively charged

If a substance has a density of 19 g/cm3, then what is the mass of 8 cm3 of this substance?

Answers

The mass is 2.375 grams

The mass is 3.375 grams

Q10. Calcium fluoride can be made from the reaction of calcium metal with fluorine gas. The image shows this reaction. Explain how the product is formed in terms of electron movement and what the final electron configurations are

Answers

Answer:

The answer to your question is given below

Explanation:

In this reaction, the calcium metal, Ca loses two electrons to form calcium ion, Ca^2+ and two fluorine atoms, F receives the two electrons to form two fluoride ion, F^-.

This is illustrated by the following equation:

Ca —> Ca^2+ + 2e

2F + 2e –> 2F^-

Ca + 2F + 2e —> Ca^2+ + 2F^- + 2e

Cancel out 2e

Ca + 2F —> Ca^2+ 2F^-

Thus, the electronic configuration can be written as follow:

Before combination:

Calcium, Ca (20) => 2, 8, 8, 2

Two fluorine atom, F (9) => 2, 7 and 2, 7

After combination:

Calcium ion, Ca^2+ => 2, 8, 8

Two fluoride ion, F^- => 2,8 and 2,8

G
A substance occupies one half of an open container. The atoms of the substance are closely packed but are still
able to slide past each other.
What is most likely the phase of the substance?
gas
liquid
solid and gas
O liquid and solid
Mark this and return
Save and Exit
Next
Submit

Answers

Answer:

Solid and gas

Explanation:

The total answer is solid and gas

Organisms in the abyss are very different from the surface organisms we live with. What factor listed below is NOT a reason for this?

A; Temperature is much lower in the abyss

B; Sunlight does not reach to the abyss

C; Organisms in the abyss are aliens

D; Pressure is very high in the abyss

Answers

Answer:

The answer is C

Explanation:

Good luck!

Answer:

llega al abismo C; Los organismos en el abismo son extraterrestres

Explanation:

Physical science studies the relationships between __________, ___________, and ___________.

Answers

Science study of matter and energy

12a. How does the model of the volcano provide evidence for the cycling of Earth materials through the rock cycle?

12b. Explain how the process you described in 12a results in rock formation.

Answers

Answer:

lava is coming from the crust

Explanation:

volcano's explode with lava because the crust pushes it out

help me fill this page with the right answer please (17 lines minimum please)

Answers

I am water moleculeI have to first bear the heat of sun .Then the heat evaporates me into vapours I am send to the atmosphere with my brothersThen I have to form clouds Then precipitation or density of our brothers increasesWe keep increasingThen once a time comes when we are full We then condensed down to earthWe comes back in the form of rainThen either we are stored in some place or undergroundThen people collects us from different places like pond,river etc

Hey Lenny lately I’ve been having a rough time in the water cycle. It all started when I was chilling in my favorite location the “glaciars” and suddenly the sun turned me into liquid form. Next thing I know I am hurdling down a river straight into a massive lake. Personally this is my least favorite stage of the water cycle because of kids and bacteria that lurk in the water, very scary things. I didn’t stop at the lake very long, and instead sunk into the soil in a process called collection so I could become ground water. Underground reservoir’s are much more peaceful then lakes and I wanted to stay there. However I was forced up a water well pump shortly after and sent through a long tube. Me and couple of the friends I met on the way were all dispersed over a giant grass feild. Many molecules in the group were captured by the hostile plants but I escaped through the means of evaporation. Currently I have condensed into cloud form and I am roaming the skies looking for you, when you get this let me know and I’ll percipitate in your area! P.s I found this photo of us freezing over in the ice age lollll.

In this cellular respiration process, some chemical bonds between atoms in oxygen and glucose molecules are _____. As atoms are rearranged, new chemical bonds are _____ between different atoms to produce carbon dioxide gas and water. This process releases energy.

The blank options are broken, and formed.
IXL N.2 7th Grade Science
Understanding the chemistry of cellular respiration

Answers

Answer:

In this cellular respiration process, some chemical bonds between atoms in oxygen and glucose molecules are broken. As atoms are rearranged, new chemical bonds are formed between different atoms to produce carbon dioxide gas and water. This process releases energy.

Answer:
In this cellular respiration process, some chemical bonds between atoms in oxygen and glucose molecules are broken. As atoms are rearranged, new chemical bonds are formed between different atoms to produce carbon dioxide gas and water. This process releases energy.

How are the brain and spinal cord related?
The brain interprets immediate danger and sends a message to the spinal cord to react.
The spinal cord directs activities of the body after receiving information from the brain.
The brain uses the spinal cord to communicate with the rest of the body.
They are both protected by the vertebrae.

EXPLAIN FOR BRAINLIEST

Answers

Answer:

The brain uses the spinal cord to communicate with the rest of the body

Explanation:

The brain and spinal cord are your body's central nervous system. The brain is the command center for your body, and the spinal cord is the pathway for messages sent by the brain to the body and from the body to the brain.

(from www.uab.edu)

they are connected and the brain uses the spinal cord to communicate to the rest of the body

7: How many times can a volcano erupt?

Answers

Answer:

Some small volcanoes only erupt once in their lives,

while other volcanoes erupt multiple times. Kilaeua volcano in Hawaii, which has been erupting continuously since 1983, is the world's most active volcano. While some volcanoes erupt at regular intervals, there are always exceptions to the rule

Answer:

small volcano's only 1 time while big volcano's mutiple times

Explanation:

Help i got 5 mins!!!!!!!!!!
No bots or report

Answers

Answer:

first option

Explanation:

Bro A
Explanation
Did this before

Research on measures taken to reduce the impact of thermal and nuclear electricity.

Answers

Impact of thermal: instead. Of burning to get energy we use natural resources like wind

What is NOT true about genes and chromosomes?

Genese are located on chromosomes

Chromosomes are in the nucleus

A single chromosome can contain hundreds of genes

All of these are true

Answers

Let us go option by option :

1) Genes are located in chromosomes. TRUE

Chromosomes are in cell nucleus. A chromosome contains hundreds and thousands of genes. A normal have 23 pairs of chromosomes, and a total of 46.

2) Chromosomes are the in nucleus.

TRUE

Chromosome is structure found in nucleus of the cell. It is made up of protein and DNA.

3) A single Chromosome can contain hundreds of genes.

TRUE

single Chromosome can contain hundreds of tgenes.

4) All of the above

TRUE

As all the statements above are true. The correct option is 4.

Answer:

all of them are true

Explanation:

this is because chromosomes contain genetic materials and it is present in the nucleus.
Therefore, the correct option is 4) all of these are true

no problem

Sometimes a cloud may form at or near the ground when the ground cools at night. This cloud is known as...

Question 1 options:

Fog

nimbostratus

Cirrus

Answers

Answer:

im belive the answers fog

fog shsndndndndndndbdbdbdbdbdbdbdhdhxbf

Give one example of fast erosion and one example of slow erosion. Use complete sentences.

help me! :)

Answers

An example of erosion is the Grand Canyon, which was worn away over time by the Colorado river.

Fast erosion include the Grand Canyon and the slow erosion include wind

What is the purpose of a code of ethics?

A. To keep journalists from making the law

B.To give newspapers and TV stations a reason to fire journalists

C. To help journalists act ethically and retain credibility

D. To explain what ethics is to the public
journalism actually answer dont ask for brainly

Answers

Answer: A code of ethics sets out an organization's ethical guidelines and best practices to follow for honesty, integrity, and professionalism. For members of an organization, violating the code of ethics can result in sanctions including termination.

Explanation:

A to keep journalists from making the law

The density of gold is 19.3 g/cm3. What is the volume of a 13 g gold nugget? (Density: D = )

.25 cm3
.67 cm3
1.48 cm3
2.50 cm3
Explain how you found your answer

Answers

It is .67 cm3 cause that’s right

Volume = mass/density
V = 13/19.3
V = 0.67

Why is melting a physical property of the wax from a burning candle, but flammability is a chemical property?

Answers

Explanation:

, , ' . .

Answer:The physical change is quite often and can be seen clearly. When the wax melts slowly and the candle gets smaller and smaller. This is the physical change of the burning candle. This wax that melts slowly comes together back into solid and the sticks to the candle. This is also a physical change.

Explanation:

Two brothers are participating in a race. The older brother's average speed is 6 miles per hour and he finishes the race in 1 hour and 20 minutes. If the younger brother's average speed is 4 miles per hour, how long will it take him to complete the race?

A.) 45 min

B.) 2 Hours

C.) 4 Hours

D.) 30 min

Answers

B). 2 Hours
Explanation if the older brother can run 6 MPH and it’s takes him a hour and twenty minutes you automatically can say it’s at least 6 miles then you have to see how many he can run in 20 minutes which is roughly 2 miles so that would mean he run for 8 miles if the younger brother can run 4 MPH then you just have to add that by 2 too see how long it will take to run 8

The answer is 45 for this just plug in your variables to the equation

Hello i need help with #2

Answers

I'm sure it's the top answer. If you're not sure it's as easy as googling it up.

Explanation:

For the following reaction:
CaO(s) + CO2(g) ⇄ CaCO3(s) ΔH = -178.5 kJ

Which of the following changes would increase the rate of the forward reaction?

Add CaO
Remove CaO
Add CO2
Remove CO2
Add CaCO3
Remove CaCO3
Increase temperature
Decrease temperature
Increase pressure
Decrease pressure

Answers

Increase the temp I think

The concept Le Chatelier's principle is used here to determine the effect of change of concentration, pressure and temperature on the state of equilibrium.

What is Le Chatelier's principle?

According to Le Chatelier's principle, If a system in equilibrium is subjected to a change in concentration, pressure or temperature the equilibrium shifts in the direction that tends to reduce the effect of the change.

Here adding CaO increases the rate of forward reaction. If the concentration of any reacting species is increased, the equilibrium will shift in the forward direction.

The given reaction is exothermic in forward direction. So the increase of temperature shift the equilibrium to the backward direction and the decrease in temperature shift the equilibrium to the forward direction.

Here increasing pressure will shift the equilibrium to the forward direction accompanied by a decrease in the number of moles.

To know more about Le Chatelier's principle, visit;

https://brainly.com/question/29559426

#SPJ3

Individual organisms have a variety of traits that make them different from each other. Traits such as fur color and eye color vary from one individual to another. What determines the traits of an individual organism?

Answers

Answer:

Traits can be determined mostly by genes but can be by environmental factors, or a combination of both. Traits can be qualitative (such as eye color) or quantitative (such as height or blood pressure) A given Trait is part of an individual's overall phenotype.

I hope this helps you out!

Phenotype, dna I think I’m not really sure but I tried, I’m just starting this

Please help, I’ll give brainliest!

Answers

Answer:

the coefficient of NO3 is going to be 2

Explanation:

Cu+2NO3−+2H2O→Cu2++2NO2+4OH−

The coefficient of NO3 will be 1

Other Questions

Help me please, it's for physics and I really need help. By using the yield to maturity on DuPont's debt, we found that its pre-tax cost of debt is 3.66%. If DuPont's tax rate is 35%, what is its effective cost of debt? DuPont's effective cost of debt is Answer guys add an Independent clause to a dependent clause help any sentence can I add A culture of bacteria has an initial population of 980 bacteria and doubles every 9 hours. Using the formula P_t = P_0\cdot 2^{\frac{t}{d}}P t =P 0 2 d t , where P_tP t is the population after t hours, P_0P 0 is the initial population, t is the time in hours and d is the doubling time, what is the population of bacteria in the culture after 13 hours, to the nearest whole number? suppose the resort has the property rights to the lake. that is the resort has the right to clean lake. in tbis case, assuming the two firms can bargain at no cost, the tannery will not use/use the recycling and will pay tbe resort $0, between 0 and 300 between 300 and 700 or between 700 and 1000.now, suppose the tannery has the property rights to the lake. the tannery will use/not use the recycling method and the resort will pay the tannery $0, between 0 and 300 between 300 and 700 or between 700 and 1000.the tannery will make the most economic profit when the resort has the property rights to a clean lake/ it has property rjghrs to pollute the lake. Please answer asap I will mark the brainly. Can you please explain step by step Why is GDP difficult to measure? 1.) How did weather in the Sierra Nevada Mountains contribute to California's water crisis?2.) is it fair to make farmers use less water? Why or why not? The density of the element mercury is 13,6 g/mL. If a sample of mercury has a mass of 4.6 grams, what is its volume? The ratio of green to blue is 6 to 9. The number of blue is 54. The number of green is ? what is the volume of the box with a high of 3/2 inches a length of 7/2 inches and a with of 5/2 inches please help graph this equation A family decides that they can spend 5/12 of their monthly income on house payments. If their monthly income is $2,160 , how much can they spend for house payments ? NO LINKS!! Please help me with this problem Part 1e a grocery store is sponsoring a sales promotion where the cashiers give away one of the letters a, e, l, s, u, and v for each purchase. if a customer collects all six (spelling values) the customer gets $25 worth of free groceries. what is the expected number of trips to the store customer needs to make in order to get a complete set? (assume the different letters are given away randomly.) If fixed costs are $1,200,000, the unit selling price is $240, and the unit variable costs are $110, the amount of sales (units) required to realize an operating income of $200,000 is a.10,769 units b.5,833 units c.12,000 units d.9,231 units what increases the amount of h (protons) in the thylakoid lumen? (select all that apply)splitting of water production of ATP sunlight transport via the cytochrome complexthe influx of CO2 1. A rapid procedure for determining the degree of sensitivity or resistance to a number of antibiotics on an agar plate is known as the A) Ames's test B) minimum inhibitory concentration (MIC) test C) the Kirby Bauer test D) broth dilution test E) none of the above = identify 2. An exotoxin produced by a gram positive spore forming bacteria, which may be (7o ral"Pound in fre sol. is best associated with the following A) #lacoid paralysis, B) rice water stools C) presence of IGA D) all of the above E) none of the above identify. 3. Faecalibacterium prausnitzii an anaerobic variable Gram staining rod in the gut microflora, produces short chain fatty acids from the fermentation of dietary fiber, is believed to play a protective role against the development and possible treatment of colorectal cancer would characteristically be expected to: A) produce colorless colonies on MaConkey's agar incubated aerobically B) growth only in the bottom of thioglycollate broth C) dispersed cloudy appearance in SIM media D) all of the above E) none of the above = identify 4. Lactose fermenters on TSI agar correspond to the following: A) pink colonies on MaConkey's agar C) coledess colonies on EMB agar D) hemolysis on blood agar 'E) none of the above # identify 5. Lactobacilli, often used in the production of various cheeses and milk products, retains the crystal violet iodine complex after washing with acetone/alcohol. Therefore this organism A) will produce colerless colonies of EMB B) will not grow on blood agar C) produces colerless colonies on EMB agar D) will not grow on MacConkey' agar E) none of the above =identify 6. Which of the following is not true for microorganisms such as Renicillum. Sacchacemuces or Plasmodium? A) have a plasma membrane B) the genome is a single circular DNA molecule C) the genome is arrange in chromosomes D) have mitochondria E) all of the above 7. This disease is found only in person who wear shoes A) tinea cruris Trichophyton metagraphytes B) tinea corporis - Microsporium gypsum C) tinea barbae - Micresporium canis D) onychomycosis - I Candidia albicans E) tinea pedis Epidermophyton floccosum 8. Direct examination results can possibly save a patient's life with an acute disease If a fungus was observed the physician can immediately begin treatment. Why is this important? A) Once diagnosed. mycotic diseases progress rapidly B) Most fungi require a long incubations period for growth C) The immune response of the host will cause the fungal agent to convert to dimorphic forms thus rendering treatment difficulty. D) all of the above E) none of the above = identify 9. Growth of Serratia species all around a disc impregnated with streptomycin A) the rate of diffusion was very slow B) the organism is resistant C) glucose was fermented D) possess flagella E) none of the above = identify Retail salespeople do not usually have to go through the ______ step in the selling process. Two linearly independent solutions of the differential equation y" - 4y' + 4y = 0 are (Select the correct answer). ii) Write the general solution. a. y, re", y = * Ob. y =e, y = xenn | d. y = "", y = xe ey, = e. Yn = xe**