PLS HELP!! ASAP!! 10 POINTS!!

From Dalton's atomic theory, a few parts were disproven over the course of years of experiments. Which part was modified by the discovery of subatomic particles?

That matter is made of atoms.
If the same elements are in a two different compounds, their ratio will always be the smallest whole number ratio for that compound.
That atoms cannot be divided.
That all atoms of an element are exactly the same

Answers

Answer 1

The indivisibility of an atom was proved wrong: an atom can be further subdivided into protons, neutrons and electrons. ... According to Dalton, the atoms of same element are similar in all respects. However, atoms of some elements vary in their masses and densities. These atoms of different masses are called isotopes.


Related Questions

If you put 8 protons and 8 neutrons, which element did you make?

oxygen
sulfur
berllium
gadolinium

Answers

u make the element oxygen

how would you differentiate between acid and bases if the list of their chemical formula is given to you​

Answers

To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has increased that substance is the base (accepts hydrogen ions).
CAN U HEP ME I HAVE A WLEEP APRAFOY AR I CANT GETA WRIS ODNIT PLEASE HWLP

How does bacteria from a fecal transplant help the patient with an C. difficile infection?

Answers

Answer:

difficile infection. By reintroducing a healthy diversity of bacteria, fecal transplantation can re-establish colonization resistance to prevent C. difficile from gaining a foothold and becoming a dominant organism in the environment of the gut.

Explanation:

the action force always acts in the ____ direction as the reaction force

Answers

Answer:

opposite

Explanation:

Newtons law explains that for every action force there is an equal and opposite reaction.

which is a characteristic of the part of the atom marked A

Answers

Answer:

Please upload the picture and I can answer

Explanation:

Answering: it is mostly empty space

Explanation:

Help fast!
Determine the density of a liquid if it’s mass is 50.5 grams.

Answers

Answer:

do we have the volume ?

Explanation:

How is a scientific theory different from everyday theories proposed by random individuals?
A.
Everyday theories can be proven beyond doubt.
B.
Everyday theories are based on facts, not opinions.
C.
Scientific theories must be supported by evidence or data.
D.
Scientific theories are not different from everyday theories.

Answers

It should be C because you need evidence or an explanation of an important fact.

Mountain ranges are the result of many different

Answers

Answer:

yea that answer he gave is correct

Explanation:

How does sediment form?



Molten rock cools below Earth’s surface.



Chemical changes cause sediment to cement together.



Loose material is compacted by pressure.



Weathering breaks down rock and other material.

i will give brainlest also if this get answer becuase i said this no one should have to say that but i will

Answers

Answer:

Loose Material is compacted by pressure.

Which student is responses are correct?​

Answers

Answer:

Neutrons: Electron cloud

Explanation:

If a box of 500 washers weighs 125.0g how many boxes would you have if you have 18.0kg of washers? How many washers would this be?

Answers

Answer:

144 boxes, 72,000 washers

Explanation:

I'm not sure if this is right but convert the 18kg to g and then divide it by the grams. You get 144 and then multiply it by 500 for the total number of washers

Write the half reactions and the balanced equation for the galvanic cell Cu(s)| Cu2+(aq)|| Cu+(aq)| Cu(s). What is the smallest possible integer coefficient of Cu+(aq) in the combined balanced equation?

Answers

Answer and Explanation:

The galvanic cell is:

Cu(s)| Cu²⁺(aq)|| Cu⁺(aq)| Cu(s)

The first two species before the double bar (||) constitute the anodic half reaction (oxidation):

Cu(s) ⇒ Cu²⁺(aq) + 2 e-

The two species after the || constitute the cathodic half reaction (reduction):

Cu⁺(aq) + e- ⇒ Cu(s)

If we multiply the reduction half reaction by 2 (to obtain the same number of electrons than oxidation reaction) and then we add the two half reactions, we obtan the balanced equation:

Reduction (cathode) : 2Cu⁺(aq) +2 e- ⇒ 2Cu(s)

Oxidation (anode) :     Cu(s) ⇒ Cu²⁺(aq) + 2 e-

                                  ------------------------------------

Total equation:         2Cu⁺(aq) + Cu(s)2Cu(s) + Cu²⁺(aq)

Cu(s) is in both reactants side and products side, so we cancel that in both opposite sides to obtain:

2Cu⁺(aq) ⇒ Cu(s) + Cu²⁺(aq)

If we divide the balanced equation into 2, the smallest possible integer coefficient for Cu⁺(aq) is 1:

Cu⁺(aq) ⇒ 1/2 Cu(s) + 1/2 Cu²⁺(aq)

On July 8th, I will be 8.51472x108 seconds old. How old will I be in years? (Assume 365 days in a year.)
step by step

Answers

Answer:

You will be 27 years old (✿◠‿◠)

state four difference between the series and parallel connection?​

Answers

Answer:

1- The components in a series circuit are arranged in a single path from one end of supply to another end. However, the multiple components in a parallel circuit are arranged in multiple paths where the two end terminals of the battery.

2- In the series circuit, different voltage exists across each component in the circuit. Whereas in the parallel circuit, the same voltage exists across the multiple components in the circuit.

3- The equivalent resistance in case of a series circuit is always more than the highest value of resistance in the series connection. While the equivalent resistance in the parallel circuit is always less than any of the individual resistances in parallel combination.

4- A fault in one of the components of the series circuit causes hindrance in the operation of a complete circuit. As against fault in a single component in a parallel network do not hinder the functioning of another part of the circuit.

The detection of a fault in case of a series circuit is difficult, but it is quite easy in parallel circuits.

How does a rain gauge measure rainfall?
A.
by collecting rain in a measuring container
B.
by counting raindrops
C.
by measuring the sound of rainfall
D.
by measuring the darkness of clouds

Answers

a) by collecting rain in a measuring container
(explanation) a rain gauge is just a cylinder that will catch rain.
A, by collecting rain in a measuring container.

How
myny moles are present in 5.6x1022 atoms of Ne? (0.09 moles Ne)
Sot ne10.05

Answers

Answer:

mole = no of atoms/ 6.02E23.... so therefore answer= 5.6E22/6.02E23= 0.093✨

Which of the following is a natural source of electricity?
A deep mines
B ligthening
C coal
D car batteries

Answers

Answer:

c

Explanation:

by burning it we get steam from.it electricity ..........

Explain how the mid-ocean ridge supports
the theory of sea floor spreading.
help plzzz:(

Answers

the ridge of mid ocean b is the answer hope this helps

Urgent help meee ;(((

Answers

Answer:

C

Explanation:

A homologous series is a group of molecules with the same general formula and the same functional group.

there are 20 _______ amino acids (9)

(fill in the blank)

Answers

Answer: different

Explanation: There are 20 different amino acids.

how much electrons are present in MnO4-

Answers

The correct answer is 5

Which body system is similar to the nucleus?

Answers

Answer:

the brain

Explanation:

What are some ways you can avoid the health risks of too much radiation
exposure?

Answers

Answer: when you go outside protect your skin with sunscreen, protective clothing, a hat, and sunglasses

Explanation:

How to do ionic equations

Answers

Answer:

Write the ionic equation by breaking all the soluble ionic compounds into their respective ions. Each ion should be shown with its charge and an to show that it is present in solution. Use coefficients to show the number of each ion present.

Explanation:

Hope this helps and I hope you have a wonderful day! Spread the love!

3-4 sentences if you give me 3-4 ill like if you give me 5 ill give 5 star if you give me 6 ill do all and branliest pls help. Why is the study of human movement important?

Answers

Human Movement is important because it most commonly used to insure optimal athletic ability. It can also be used to identify the cause of most common sports injuries and movement-related problems. The name for this type of study is called Kinesiology. This is a very necessary part of students understanding dance, sports, and physical well-being. Studying Kinesiology results in better physical performance, as well as many cardiovascular improvements. Kinesiology is used to answer many still unknown question about human movement.

When Silver (Ag) forms a metallic bond with other Silver atoms, what do the valence electrons move into? A. the all go to the same Silver atom B. the bond with the oxygen in the atomsphere C. they escape to free space D. the sea of electrons

Answers

Answer:

D. the sea of electrons

Explanation:

Metallic bonds are defined as the bonds formed between two or more metals. Silver atom form metallic bond with other silver atoms.

In metallic bond, the free electrons or valence electrons present in s and p orbitals delocalize. The valence electrons do not move around the atoms or enter the atoms whereas they form a sea of electrons in which they surround the nuclei (positively charged) of the metal ions interacting. The valence electrons are then freely move in the space between the atomic nuclei.

Hence, the correct answer is "D. the sea of electrons".

I need help with my chemistry homework

Answers

Speed in excess of 100 km/h, which is 208.8 km / h

Further explanation  

Linear motion consists of 2: constant velocity motion with constant velocity and uniformly accelerated motion with constant acceleration  

• An equation of uniformly accelerated motion  

[tex]\large {\boxed {\bold {x=xo+vo.t+\frac {1} {2} at ^ 2}}}[/tex]

vt = vo + at  

vt² = vo² + 2a (x-xo)  

x = distance on t  

vo / vi = initial speed  

vt / vf = speed on t / final speed  

a = acceleration  

I think it's not chemistry but physics

Known

Δx = 290 m

vf = 0⇒stop

Δt = 10 s

We use the formula in the question

[tex]\tt \Delta x=\dfrac{1}{2}(vf+vi)\Delta t\\\\290=\dfrac{1}{2}(0+vi).10\\\\vi=58~m/s=\boxed{\bold{208.8~km/h}}[/tex]

What is the independent variable in this experiment?

Answers

Answer:

D

Explanation:

because it was the variable that was changed in the experiment. distance was controlled and speed changed with time.

If a cube has an edge length of 0.843 cm what is the volume of the cube? (Answer should be 3 decimal places)

Answers

Answer:

0.600

Explanation:

Hope this helps!

One of the pieces of evidence supporting energy quantization was the line spectra of elements. Why does this demonstrate energy quantization?
a) Photons are packets of energy that act both as a particle and a wave.
b) The spectra is continuous and shows emission at all wavelengths.
c) There are sharp emission lines demonstrating discrete energy levels.
d) All compounds emit light in the ultraviolet and visible regions specifically.​

Answers

Answer:

c) There are sharp emission lines demonstrating discrete energy levels.

Explanation:

When an element emits energy in the form of radiation, it produces a spectrum of colors on a photographic plate. This spectrum can either be continuous or discrete. In continuous spectrum the spectrum continues without any discrimination between two regions. This represents the continuous emission of radiation, and thus the continuous emission of energy without any break.

On the other hand, the line spectrum consists of discrete and sharp lines, which shows the emission of radiation in a certain amount in a certain time, with a break between emission. Hence, the line spectra supports the quantization of energy.

The correct option is:

c) There are sharp emission lines demonstrating discrete energy levels.

Other Questions
who can answer this????? According to Article II of the Constitution, one of the presidents duties is toserve as commander in chief.create laws and interpret them.set up and manage the courts.serve in the House and Senate. choose and highlight the correct word for each sentence Please help me with this Is the media mostly fair?Back up with your opinion and facts Plss help i dont understand :( por favor aydeme!! Which of the following is an example of work: bowling or reading? How do you know? what is the answer ? Why are doctors required to report some, but not all, illnesses to governmentagencies?O A. Certain illnesses are infectious and dangerous to the public, andhealth agencies need to prevent them from spreading.B. Doctors are actually not allowed to report any illnesses togovernment agencies.C. Doctors are actually required to report all illnesses to governmentagenciesD. Certain illnesses occur more commonly in the general population,such as heart disease and cancer Simplify (84)16. (1 point)86482081284 PLEASE HELP ON EOS!!!!Adam works as a municipal police officer, and is thus a member of the countrys local law enforcement. Which jurisdiction falls under Adams control?A. stateB. multiple citiesC. multiple statesD. cityE. nation How many protons, neutrons, and electrons are in C -14 plz help? will give u brainliest! Which causes the rain shadow of the Great Plains?Rocky MountainsSierra MountainsAndes MountainsAppalachian Mountains 100 POINTS HELP!!!!!!!!!!!!!!!!!!!! 9. The prefix mono- means "one" and the prefix poly-means "many." Some lipids are monounsaturated, andothers are polyunsaturated. Explain the differencebetween the fatty acids in these different types of lipids. Which statement accurately describes the role that money played in the 2016 presidential election?O A. Hillary Clinton's campaign spent less money than did Donald Trump's campaign.OB. Donald Trump's campaign raised more money from outside groups than did Hillary Clinton's campaign.O C. The campaign that spent the most money won the election.OD. Donald Trump's campaign spent less money than Hillary Clinton's campaign spent. Photography: Hurry please, Compare and contrast the film strip on which recording takes place as opposed to a digital storage device, such as a hard disk.Describe the process of transferring or converting a video from analog to digital format. what are the synonyms of happy What is the point of view of this passage? How does this point of view help create suspense for the reader?PassageLiana and Coen walked barefoot through the grass to the old oak tree on the edge of the property. They'd been looking forward to this all day. Liana spread a blanket at the foot of the tree and sat down, closing her eyes as she leaned against the tree's trunk. She couldn't remember a time that she had been this exhausted.Coen watched his sister, choosing to stretch out on the ground. He thought about the long day they'd had, taking care of their mom, but they were glad for the chance to relax and have a little time to themselves. With any luck, they wouldn't be needed for another hour or so and could spend the time chatting and watching the sun set behind the mountain.As they talked about nothing in particular, neither sibling noticed the umbrella-like hive hanging 15 feet above their heads, nor did the siblings hear the buzzing emerging from its depths. The wasps' nest began to vibrate as Coen turned up the volume on his portable radio.