thomas atoms theroy​

Answers

Answer 1

Answer:

Do you want to us to explain what it is

Explanation:

Answer 2

Answer:

APEX

Explanation:

The electron


Related Questions

plz tell me I will also give brainiest. forces can be ________ or unbalanced ​

Answers

Answer:

balanced

Explanation:

hope this helps

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{ \: Balanced}}}}}[/tex]

Explanation:

Forces can be balanced or unbalanced.

[tex] \bigstar {\sf{ \: \: Balanced \: force}}[/tex]

When a number of forces acting on a body do not change its state of rest or uniform motion in a straight line , the forces are said to be balanced forces. For example : In the game of tug of war, two teams pull a rope in opposite directions. When the two teams exert equal and opposite forces on the rope, the rope remains steady and does not move in any direction. It appears as if no force is acting on the rope. Thus, the two forces acting on the rope in this case are balanced forces.

[tex] \bigstar{ \sf{ \: Unbalanced \: force}}[/tex]

When a number of forces acting on a body change it's state of rest or uniform motion in a straight line, the forces are said to be unbalanced forces. For example, if we push a toy car towards east, it moves towards east. If it is pushed towards west, it moves towards west. This unbalanced force produces motion.

Hope I helped!

Best regards! :D

~TheAnimeGirl

Which subatomic particles were discovered, disproving the part of Dalton's atomic theory that said an atom is "indivisible?" Question 3 options: A) neutrons B) ions C) protons D) electrons E) isotopes

Answers

Answer:  D) Electrons

Explanation:

Daltons atomic theory was electrons

A heterogeneous mixture is

Answers

Answer:

simply any mixture that is not uniform in composition - it's a non-uniform mixture of smaller constituent parts

Explanation:

i think it may wrong

Which is one source from which metamorphic rocks form?

soil particles
igneous rock
molten material
sand particles

Answers

Answer:

Option B:igneous rock

Explanation:

Metamorphic rocks are formed as a result of heat and pressure transforming the original or parent rock completely into a new rock. Now this original or parent rock can either be sedimentary, igneous, or another metamorphic rock.

Thus, looking at the options, the only source of metamorphic rocks is from igneous rocks.

Answer:

B

Explanation:

Took the test

two samples of the same material are touching directly.

1.) Name the process is happening
2.) Describe in what direction the heat will flow and why

Answers

Answer:

1) The process that occurs were two items are in direct contact with each other is known as conduction. Conduction is the form of heat transfer that occurs or requires the direct contact of two bodies before it can take place

2) In heat transfer, heat would flow from the hotter sample sample through the process of conduction until thermal equilibrium is established

Explanation:

An atomic number stands for the number of _____. neutrons in the nucleus of an atom protons in the nucleus of an atom valence electrons in an atom protons plus neutrons in the nucleus of an atom

Answers

Answer:

atoms or electrons

Explanation:

but l guess electrons is the best answer

5. If a block of wood has a density of 0.6 g/cm3 and a mass of 120 g, what is its volume? (D= M/V)

Answers

Answer:

200 cm^3

Explanation:

V = M/D

V = 120g / (0.6g/cm^3)

V = 200 cm^3

In this case, the volume is 200 cm^3.

What is density?

Density is defined as the mass of a material substance per unit volume. The equation for density is d = M/V, where d stands for density, M for mass, and V for volume. Grams per cubic centimetre are a typical unit of density measurement.

For instance, the density of Earth is 5.51 grammes per cubic centimetre, but the density of water is 1 gramme per cubic centimetre. Kg/m3 is another way to measure density (in metre-kilogram-second or SI units). For instance, the air has a density of 1.2 kilogrammes per cubic metre.

Textbooks and manuals provide lists of the densities of common solids, liquids, and gases. The mass of a body may be calculated from its volume using density, and vice versa. The mass is equal to the volume multiplied by the density (M = Vd), whereas the volume is equal to the mass divided by the density (V = M/d).

You may calculate a body's weight by multiplying its mass by the acceleration of gravity, which is typical of more practical significance than its mass. Additionally, there exist tables that indicate the weight of various substances per unit volume; this amount is sometimes referred to as specific weight, weight density, or unit weight.

Instead of referring to the density of a single particle, the term "particle density" refers to the number of particles per unit volume and is typically written as n.

Therefore, here the volume is 200 cm^3.

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Which of the following is a reaction between an acid and a base?
HCI + NaOH + H2O + NaCl

CaCl2 + K25 + CaS + 2KCI

NaCl + AgNO3 →→ NaNO3 + AgCl

C3H8 + 502 + 3CO2 + 4H2O

Answers

The first one

HCl is a strong acid and NaOH is a strong base which will react and make H2O and NaCl

3. A gold ring has a mass of 67.0 grams. When
placed in a graduated cylinder containing 10 ml of
water, the water rises to 13.47 ml. Calculate the
density of the ring.
I

Answers

Answer:

The answer is

19.3 g/mL

Explanation:

The density of a substance can be found by using the formula

[tex]Density = \frac{mass}{volume} [/tex]

From the question

mass = 67 g

Volume of ring = new volume of water - original volume of water

Volume = 13.47 - 10 = 3.47 mL

Substitute the values into the above formula and solve

That's

[tex]Density = \frac{67}{3.47} \\ = 19.308357[/tex]

We have the final answer as

19.3 g/mL

Hope this helps you

is pepperoni pizza an element, compound,
heterogeneous mixture, or homogeneous mixture?

Answers

Pepperoni pizza is a heterogeneous mixture because you can see the ingredients.

Pepperoni pizza is a heterogeneous mixture. Therefore, option C is correct.

A heterogeneous mixture is a type of mixture that consists of visibly different substances or phases that are not uniformly distributed. In a heterogeneous mixture, the different components can be easily distinguished and separated. The composition and properties of the mixture can vary at different locations within the mixture.

In a heterogeneous mixture, the substances do not blend together at the molecular level, unlike in a homogeneous mixture where the components are uniformly distributed.

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In cooking or preparing food and drink, when have you observed solubility in action?

Answers

Answer:

Making lemonade with powder: The flavored powder is soluble and will dissolve into the water.

Explanation:

A scientist grew bacteria on gel in her lab.
She wanted to find out if bacteria would grow faster on gel A or gel B.
she placed a few bacteria on gel A and a few on gel B.
After 24 hours, she observed how many bacteria were present.
Identify the independent and dependent variables.​

Answers

Answer:

The independent variable is type of gel and the dependent variable is the number of bacteria.

Explanation:

An experiment generally tests how one variable is affected by another. The affected variable is called the dependent variable. In the plant experiment shown above, the dependent variable is plant growth. The variable that affects the dependent variable is called the independent variable. In the plant experiment, the independent variable could be fertilizer—some plants will get fertilizer, others will not. The scientists change the amount of the independent variable (the fertilizer) to observe the effects on the dependent variable (plant growth). An experiment needs to be run simultaneously in which no fertilizer is given to the plant. This would be known as a control experiment. In any experiment, other factors that might affect the dependent variable must be controlled. In the plant experiment, what factors do you think should be controlled? (Hint: What other factors might affect plant growth?)

What is the net charge of a nitrogen atom with 8 electrons

Answers

Answer:

– 1

Explanation:

From the question given above, we obtained the following:

Electron = 8

Net charge of nitrogen =.?

Nitrogen has atomic number of 7. This also means that nitrogen has 7 proton because atomic number of an element is the equal to number of protons in the atom of the element.

Thus, we can obtain the net charge of nitrogen with 8 electrons by calculating the difference between the protons and electrons of the nitrogen atom. This can be obtained as follow:

Proton = 7

Electron = 8

Net charge = Proton – Electron

Net charge = 7 – 8

Net charge = – 1

Therefore, the net charge of the nitrogen atom with 8 electrons is – 1

is carbon dioxide gas an element or a compound

Answers

Answer:

Carbon Dioxide gas is a compound.

If you burn a piece of wood, it becomes a different substance. What type of
property is this?
A. Electrical property
O
B. Chemical property
C. Physical property
D. Mechanical property

Answers

Answer:

B. Chemical property

Explanation:

Answer:

B

Explanation:

a reaction has taken place in which you can't get back what you started with

6) A giraffe walked 1 mile in 15 minutes. Find the unit rate. O A. 1 mi/15 min O B. 15 mi/min O C. 0.06 milmin 0 D. 2 mi/30 min​

Answers

Answer:

1 mil/ 15 min

A giraffe walked 1 mile in 15 minutes. So the unit rate for it will be 1mil/ min.

What is the unit?

Unit is some standards to measure the physical quantity of an object. There are two unit systems as SI unit and the CGS unit.

There are standard six quantities which have units :

Kilogram is the unit of mass.second is the unit of time.Meter is a unit of length.Ampere is the unit of current.Kelvin is the unit of temperature.Mole is the unit of the amount of substance.

Apart from this, some quantities have derived units. These quantities are force, energy, and power.

In the given question, the giraffe walked 1 mile in 15 minutes, therefore

Walking distance of giraffe= 1mile/ 15 min.

Therefore, A giraffe walked 1 mile in 15 minutes. So the unit rate for it will be 1mil/ min.

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3. The water in a beaker has a mass of 200 g. An electric current is
tumed on in the water for two hours. Afterward the water has a
mass of only 176 g. What happened to the missing mass?

Answers

Answer:

Through electrolysis, some of the water became hydrogen gas and oxygen gas

Explanation:

I just took a test on this online.

The passage of current through water results in the formation of hydrogen gas and oxygen gas. This both will evolves out and the remaining water will have lessor mass than the initial.

What is electrolysis?

Electrolysis is the process of conversion of electrical energy to chemical energy by applying an  electric field. Electrolysis involves an electrolyte which can conduct by furnishing ions.

Generally electroanalytical cells involves  two metallic electrodes which are immersed in a molten electrolyte containing the same metal ions.

When an electric  current is passed through water, it will undergo electrolysis and produce hydrogen and oxygen in gaseous state. These gases bubbles out from the water and therefore, there occurs a mass loss for water.

To find more about electrolysis, refer the link below:

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In which Group do most of the elements have 8 valence electrons?
A. Transition metals
B. Alkaline earth metals
C. Halogens
D. Noble gases

Answers

The answer would be D. Nobel Gases

Why will a toy train remain still if you push on the engine with
A force of 3 N and your friend push on the caboose with a
Force of 3 N?

Answers

Explanation:

Because when two equal forces are applied from opposite directions, they "eliminate" each other.

The train would go right if a 3N force was only applied in the right direction, and it would go left if the same force was only applied to the left.

If a 3N force was applied to the right and a 2N force to the left, it would equal a 1N force to the right (3-2=1).

But there it's 3-3=0, so in practice the force is 0N. Therefore the train won't move.

Why are scientific models important in the study of science?

Answers

Answer:

In science, amodel is a representation of an idea, an object or even a process or a system that is used to describe and explain phenomena that cannot be experienced directly. Models are central to what scientists do, both in their research as well as when communicating their explanations.

Explanation:

Answer:

They always involve critical mathematical calculations.

Explanation:

tell me if im wrong but this one makes the most since to me

how many balance electrons does sodium have

Answers

Answer:

1

Explanation:

Answer:

it has one valence electron

The subatomic particle that has a mass equal to the neutron but carries a positive charge is the:
1. Nucleus 2. Electron 3. Proton 4. Neutron
o1 o4 o2 o3​

Answers

Answer: PROTON

Explanation:

a stable subatomic particle that has a positive charge equal in magnitude to a unit of electron charge and a rest mass of 1.67262 × 10 −27 kg, which is 1,836 times the mass of an electron. Protons, together with electrically neutral particles called neutrons, make up all atomic nuclei except for the hydrogen nucleus (which consists of a single proton).

2. What is the ratio of protons to electrons in all normal atoms?

Answers

Given :

Normal atom.

To Find :

The ratio of protons to electrons in all normal atoms.

Solution :

Here normal atom means neutral atoms i.e atoms whose charge is zero.

Atom charge is zero when number of proton are equal to number of electrons.

[tex]N_p=N_e[/tex]

So, [tex]\dfrac{N_p}{N_e}=1[/tex]

Therefore, the ratio of protons to electrons in all normal atoms is 1.

Hence, this is the required solution.

Describe how molecular motion and distance between molecules change as ice is heated to become a liquid and then a gas

Answers

Answer:

Described in the explanation section

Explanation:

Ice is the solid phase of water and this phase, the water molecules usually have very little energy and therefore can't detach from each other. This is because the water molecules are closely packed together in a regular arrangement normally called lattice.

Now, when the ice is heated to become a liquid, the energy of the water molecules increases and thus some of them will have enough energy to overcome the intermolecular forces that had been keeping them closely packed in the ice phase. This will then make the water molecules to move further apart thereby forming liquid water.

Now, when the molecules are heated further, the liquid water will now turn into water vapor, which is the gas phase of water. The molecules in this gas phase will have more energy than in the liquid phase because the average distances between each of them will be much larger than the size of the molecules themselves.

What is the mass of a
12.31 cm3 piece of
copper having a density of
8.96 g/cm3

Answers

Answer:

110.30 grams

You have to multiply by 8.96.

12.31 x 8.96 = 110.30 grams.

Therefore, that is your answer.

(Sorry I had to answer twice it was because of LukeG1).

Based on what you observed, what ideas do you
have about the missing piece? What can you
visualize about the missing piece?

Answers

you hv to insert the image of the missing piece hope this helps

PLZ ANSWER WILL GIVE BRAINEST Based on the information in the table, which elements are most likely in the same periods of the periodic table?

-Boron and carbon are likely together in one period because they have very close atomic numbers, while gallium and germanium are likely together in another period because they have very close atomic numbers.

-Aluminum, boron, and carbon are likely together in one period because they were first isolated in the first half of the 1800s, while gallium and germanium are likely together in another period because they were first isolated in the second half.

-Boron and carbon are likely together in one period because they each end in “-on,” while aluminum, gallium, and germanium are likely together in another period because they each end in “-ium.”

-Aluminum, boron, and gallium are likely together in one group because they have the same number of valence electrons, and carbon and germanium are likely together in another group because they have the same number of valence electrons.

Answers

Answer:

Aluminum, boron, and gallium are likely together in one group because they have the same number of valence electrons, and carbon and germanium are likely together in another group because they have the same number of valence electrons.

Explanation:

Answer: The correct answer is

Aluminum, boron, and gallium are likely together in one group because they have the same number of valence electrons, and carbon and germanium are likely together in another group because they have the same number of valence electrons.

This is the only one that makes sense after reviewing the data. Hopefully this helps! Feel free to mark as brainliest!

Is the copper in a copper wire a homogeneous or heterogeneous mixture

Answers

Yes it is because it’s a copper wire and not brass
The answer is homogenous. Homogeneous means “the same” and heterogenous means the opposite. The copper in a copper object would make it the same

which of the following is a scientific law?

Answers

climate changing a

nodvnfosdjfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfvhnfv

its a

Answer:

Climate change

HELP ASAP

What is volume? O A. The measure of the amount of space a substance takes up B. The measure of the amount of space per unit of volume O C. The measure of the amount of matter per unit of volume O D. The measure of the amount of matter in a substance​

Answers

Answer:

A. The measure of the amount of space a substance takes up

Explanation:

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Why did Jamals teacher, Ms. Joyce, request a meeting with Jamals mother? finding forrester Which happened first in Hitler's rise to power? 1. Hitler began building up the German military in defiance of the Treaty of Versailles. 2. German took the Rhineland. Hitler was appointed chancellor of Germany. 3. Hitler wrote Mein Kampf while he was in prison. One of the most important skills to learn in writing is persuasion. For this project, you will write an essay comparing andcontrasting two things. They can be items (apples and oranges), events (Waterloo and Normandy), places (Hawall andAlaska), people two politicians), or anything you can think ofOBJECTIVESCompose a persuasive essay using regular triangle organizationUse comparison and contrast developmentAfter giving a balanced comparison of the two things you have chosen, decide which one you like better, and state yourreasons. Since you are trying to persuade others to agree, organize your reasons carefully, building in Importance, andclose with a convincing paragraph. The resulting essay will be organized as a regular triangle, much as a single paragraphcan be organized in that wayInstructionsOrganize your information before you begin writing. You may wish to divide a piece of paper into three columns. Labelthem: For Against other. As you plan,jot down your facts in the appropriate column. This helps you organize yourInformation and will aid you in your persuasive essayMake a brief outine written or mental) for the reasons you prefer one of the two. Organize the reasons from eastimportant for least persuasive to most important for most persuasive)Write one paragraph for each of your main points,Use connecting words at the end or beginning of each paragraphSummarize and conclude in a conclusion paragraphWrite an essay of at least 200 words with an introduction, body, and a conclusionYou will be graded on the following criter Clearly state your position and support it within the required number of words Make sure each paragraph contains one man idea and support Use complete sentences Include an introductory paragraph, proper transitions, and an appropriate conclusion Make sure your essay contains no errors in conventions such as spelling and grammar errors, and is at least 200words long why were the farmers upset? I cant figure out how to find the average. if you were a government leader at the end of the Civil War, what problem do you think you would have needed to solve first? Hey guys. I need help on something. TERRIBLE at American History and I need help! PLEASE HELP! Question 14 : Math the term to the correct description. : Descriptions : 1. Power is help by an economic elite, the people who control the "means of production". 2. Power is held by bureaucrats. 3. Power is concentrated among a 'power elite' made up of leaders from the military, government, and business. 4. Theory of government that makes the case that no single group of people controls the majority of government decisions. 5. Theory of government that argues that power is held by a small group of people. : Terms : 1. elitist theory 2. pluralist theory 3. Karl Marx's theory 4. Max Weber's theory 5. C. Write Mills' theory Please help! 10+ pts are rewarded! You all will be saving my day if this gets answered! Please help I'll mark brainlest Which phrase best describes scientific inquiry? a.based on opinions b.includes only a few possible paths c. involves asking and answering questions d. used only by scientists Select the appropriate definite article for each vocabulary word to achieve gender/number agreement. (el, la, los, las) 1. [ Select ] celular 2. [ Select ] biblioteca 3. [ Select ] destacador 4. [ Select ] cuadernos 5. [ Select ] reloj 6. [ Select ] lpiz 7. [ Select ] clases 8. [ Select ] librer what are the layers of hydrosphere? Which items are NOT found on adoor?*5 pointsCladdingMouldingWeatherstripCheck StrapStrikerAll of the aboveNone of the above Enter the value 15+(-29)-15-29 10 x 1/5 in simplest form Which scale factor was used to create triangle SRT? Give three examples of natural resources found in Latin America. Explain which industries use these natural resources and the environmental challenges that can occur as a result. Speed limit signs are placed every 58 mi on the highway. How many signs are there on a 75 mi stretch of highway? Which operation should be used to solve the problem? division multiplication Chinas government discourages population growth through all of the following measures except __________.A.subsidizing daycare for large familiesB. fining couples with more than one childC. offering maternity leave to one-child familiesD. requiring that all couples in urban areas have only one child Which features are formed by silt being deposited along riverbanks?deltasbluffssalt domesnatural levees 13. Emily has h + 15 minutes of homework tonight. Evaluate when h= 20.