True or false: The subatomic particles in an atom do not move. *

Answers

Answer 1

Answer:

True

Explanation:

hope this works:)

have a nice day:)

May I have brainlist

Answer 2

Answer:

true he got it right

Explanation:

i just know ok


Related Questions

helppppppppppppppppppppppppp

Answers

Answer:

lose 1 2+

Explanation:

I honestly don't know

The trend towards smaller atomic radii as one moves to the right in a period is _____. A) faulty, as atomic radii in a period are nearly uniform in size. B) because of electron pair repulsion causing the expansion of the orbitals. C) wrong. Atomic radii increase across a period left to right as the larger d and p orbitals are occupied after the s orbital. D) due to the effective nuclear charge decreasing. E) due to the effective nuclear charge increasing.

Answers

Answer:

It’s E. Nuclear charge increasing

Explanation: it just is

There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. Option E is correct option.

What is periodic table?

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

As we go from left to right in periodic table the atomic radii decreases because of increase in effective nuclear charge . There is no increase in number of shells only the number of electrons increases which increase the number of protons in the nucleus and hence the effective nuclear charge of the atom which makes the size of atom contract.

Therefore, the trend towards smaller atomic radii as one moves to the right in a period is due to the effective nuclear charge increasing. The correct option is option E.

Learn more about periodic table, here:

https://brainly.com/question/11155928

#SPJ2

Velocity has both speed and direction, so it is a what

Answers

Answer: Velocity is a mathematical vector. That means it has both a magnitude (speed) and a direction. Scientists need to consider an object’s velocity to calculate its momentum — its velocity multiplied by its mass. Scientists use measures of velocity in everything from figuring out how much rain is falling to sending a rocket to space.

Explanation: Hope this help:)

Phản ứng nào sau đây chuyển glucozơ và fructozơ thành một sản phẩm duy nhất?
A. Phản ứng với Cu(OH)2, t0. B. Phản ứng với dung dịch AgNO3/NH3. C. Phản ứng với H2/Ni, t0. D. Phản ứng với Na.

Answers

Answer:

Aaaaaaaaaaaaaaaassplee

Why are engineers called applied scientist?​

Answers

Answer:

Applied science is a discipline that is used to apply existing scientific knowledge to develop more practical applications, for example: technology or inventions. In natural science, basic science (or pure science) is used to develop information to explain phenomena in the natural world.

Answer:

• Because engineers apply science and its theories into practical situation

Take an example of;

A generator: When creating a generator, electromagnetic induction theorem is applied. [ self and mutual inductance ]

A plane: The wings are made in considerance of Bernoulli principle and viscous drag

[tex].[/tex]

In a varve, summer is represented by _____.

sediment from melting glaciers being deposited in lakes

clay from wind-blown dust

ash from nearby volcanoes

None of these

Answers

Answer:

answer b

Explanation:

i took the test

Answer:

Hey let's talk here if you want

Can someone help please?

Copper occurs naturally as a mix of two isotopes: Copper-63 with a mass of 62.930 amu and copper-65 with a mass of 64.928 amu. The percent abundance of copper-63 is 69.09%.
Calculate the atomic mass of copper.

Answers

Take the weighted average of the individual isotopes.Explanation:63Cu has 69.2% abundance.65Cu has 30.8% abundance.So, the weighted average is 62.93×69.2% + 64.93×30.8% = 63.55 amu .If we look at the Periodic Table, copper metal (a mixture of isotopes but 63Cu and 65Cu predominate) has an approximate atomic mass of 63.55 g⋅mol−1 , so we know we are right.

Answer: 63.55

Explanation:

The attached chart shows the calculation.  The orange line points to the % abundance of Cu-65, which is the difference of 100% less the % Abundance of Cu-65 (since there are only 2 isotopes).

The weighted average contribution of each istope is calculated (blue arrow) and then summed to find the atomic mass of copper.

The overall chemical reaction for photosynthesis
is shown below:
6CO2 + 6H2O → C6H1206 + 602
What mass of glucose (C6H1206) can form from
71.89 g CO2? (Molar mass of C6H1206 = 180.18
g/mol; molar mass of CO2 = 44.01 g/mol)
71.89 g CO2 =
Ig Cg H 1206
DONE

Answers

Answer:

49.05 g

Explanation:

6co2+6h20-c6h120+602

What was John Dalton's contribution to the development of the atomic theory?

A
Dalton recognized that tiny atoms combined to form complex structures.

B
Dalton recognized the presence of electrons around a nucleus.

C
Dalton recognized the presence of protons in the nucleus.

Answers

Answer:

A. Dalton recognized that tiny atoms combined to form complex structures.

A dry soil sample has a volume of 500 mL. After 400 mL of water are added to the soil, the soil becomes saturated with 150 mL of surface water left on top. What is the porosity of the soil?

Please help me

Answers

The Answer is 50. hope this helps

WILL MARK AS BRAINLIEST IF CORRECT
The temperature of an enclosed gas at constant pressure changes from 400 K to 100 K atm. What happens to the volume of the gas?

a
The volume will increase to 4 times its original volume.
b
The volume will stay the same.
c
The volume will decrease to 1/2 of its original volume.
d
The volume will decrease to 1/4 of its original volume.
e
The volume will increase to 2 times its original volume.

Answers

Answer:

a

Explanation:

they are directly proportional. if one goes down the other goes up while pressure is constant

What mass of glucose would you need (in g) to have 0.8 mol, given that the molar mass of glucose is 180 g mol-1?

Answers

Answer: 144 g

Explanation:

  Mass of glucose = moles × molar mass

∴ Mass of glucose = 0.8 mol × 180 g mol⁻¹

                               =  144 g

∴ the mass of glucose you need to have 0.8 mol of glucose = 144 g

The types of projection that are useful for making maps of the United States are called __________. (Choose 2)

Answers

Answer:

Mercator projection, geologic projection

BaCO3(s) → BaO(s) + CO2(g)

(a) A student heated a 10.0 g sample of barium carbonate until it was fully decomposed.

(i) Calculate the number of moles of barium carbonate the student used.

moles of barium carbonate =

Answers

number of moles = mass

molar mass

BaCO3 molar mass = 197.34 g/mol

mass = 10g

n = 10/197.34

n = 0.05moles.

The number of moles of barium carbonate used are 0.05moles.

A flagpole is an example of what type of pulley system?

A. Movable pulley
B. Fixed pulley
C. Block and tackle?​

Answers

Answer:

B

Explanation:

i learned the pulley system in school

Answer:

B. Fixed pulley 

Explanation:

if the reactants of a reaction have an initial mass of 25g what should the mass of the products be

Answers

Answer:

It remains the same

Explanation:

The law of conservation of mass states that, during a chemical reaction, the total mass of the products must be equal to the total mass of the reactants.

If repeated measurements agree closely but differ widely from accepted value these measurements are?

Answers

d. precise, but not accurate

What are the Characteristics of handwriting?

Answers

Line quality: Examiners determine whether the letters flow in a smooth manner, or in an erratic or shaky way.

Spacing: Examiners determine whether the letters have equal spaces from each other or crowded.

Size consistency: Examiners check the consistency in terms of the ratio of the letter's height to its width.

once an enzymatic reaction is completed, the enzyme releases what?

Answers

Answer:

Once an enzymatic reaction is completed, the enzyme releases substrates.

Explanation:

The enzyme will always return to its original state at the completion of the reaction. One of the important properties of enzymes is that they remain ultimately unchanged by the reactions they catalyze. After an enzyme is done catalyzing a reaction, it releases its products (substrates).

For X + Y → XY, if [XY] is increasing at a rate 0.10 M s-1, predict the rate of depletion of both reactants.

Answers

It’s 819. UWu Jan thanks s whhakswn shoaakb

Does someone know the combustion in a jacket potato???

Answers

Answer:

Some varieties of potato, such as Russet and King Edward, are more suitable for baking than others, owing to their size and consistency. Despite the popular misconception that potatoes are fattening, baked potatoes can be part of a healthy diet.[2]

8. Explain why fluorine has a smaller atomic radius than chlorine.

Answers

Answer:

Explanation: Fluorine has a smaller atomic radius than oxygen because fluorine has a larger nuclear charge. Fluorine has a smaller radius than chlorine because it has eight fewer electrons.

There are various kind of elements that are present in periodic table. Some elements are harmful,  some are noble gases. The size difference between chlorine and fluorine can be explained on the basis of number of shells.

What is periodic table?

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

As we go down along the periodic table the number of shells increases.

Atomic number of F= 9

Electronic configuration of F=2, 7

Atomic number of Cl= 17

Electronic configuration of chlorine = 2,8,7

So, there are total 2 shells in Fluorine while chlorine has 3 shells. The distance of shells increases with increase in number of shells. This makes the size of chlorine more bigger than fluorine.

Therefore, the size difference between chlorine and fluorine can be explained on the basis of number of shells.

Learn more about periodic table, here:

https://brainly.com/question/11155928

#SPJ2

what is the scientific notation of (41 e 23) (8.0 e 3)

Answers

Answer:b

Explanation:

Please help!
Answer please!

Answers

Answer: a

Explanation: a

What is the resultant force of a motorcycle travelling at 500 N with an air resistance of 50 N

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The resultant force is equal to :

[tex]500 - 50[/tex]

[tex]450 \: \: N[/tex]

If 12.2 kg of Al2O3(s), 57.4 kg of NaOH(l), and 57.4 kg of HF(g) react completely, how many kilograms of cryolite will be produced?

Answers

Answer:  kilograms of cryolite ≈ 50.23 kg

Explanation:

Write the balanced equation

Let's start off by writing the reaction for the formation of cryolite:

Al₂O₃  +  6NaOH  +  12HF    →    2Na₃AlF₆  +  9H₂O

Determine the limiting factor

moles = mass ÷ molar mass

moles of Al₂O₃ = 12200 g ÷ 101.96 g/mol = 119.65 mol

moles of NaOH = 57400 g ÷  39.997 g/mol = 1435.11 mol

moles of HF = 57400 g ÷ 20.01 g/mol = 2868.57 mol

Since Al₂O₃ has the smallest number of moles in the reaction, it is the limiting factor. As such we will have to use the moles of Al₂O₃ to determine the moles of cryolite that will be produced.

Find the mole ratio between the limiting factor and the cryolite

The mole ratio of Al₂O₃ : Na₃AlF₆ based on the balanced equation is 1 : 2

∴ since the moles of Al₂O₃ = 119.65 mol

        the moles of Na₃AlF₆ = 119.65 mol × 2 = 239.3 mol

Calculate the mass of the Cryolite

Mass cryolite = moles × molar mass

                      = 239.3 mol × 209.9 g/mol

                      =  50229.07 g

      ∴ kilograms of cryolite ≈ 50.23 kg

what is daltons theroy

Answers

Answer:

A theory of chemical combination, first stated by John Dalton in 1803. It involves the following postulates: (1) Elements consist of indivisible small particles (atoms). (2) All atoms of the same element are identical; different elements have different types of atom. (3) Atoms can neither be created nor destroyed.

Explanation:

Which is a valid velocity reading for an object?
45 m/s
45 m/s north
0 0 m/s south
0 m/s
Save and Exit
Next
Sunt
Mark this and retum

Answers

Next is the answer to the question

LIST TWO REASONS WHY WE SHARE OUR RESULTS A SCIENTIFIC INVESTIGATION​

Answers

Publishing results of research projects in peer-reviewed journals enables the scientific and medical community to evaluate the findings themselves. It also provides instructions so that other researchers can repeat the experiment or build on it to verify and confirm the results.

Convert 9.79 kilograms (kg) to decagrams (dg).
А
0.979 dg
B 97.9 dg
C979 dg
D
9,790 dg

Answers

Answer:

C) 979 dg

Explanation:

1 Decagram = 0.01 Kilogram, and 1 kilogram = 100 Decagram.

Hope this helps :)

Answer:

fsf

Explanation:

sdfsd

Other Questions
Can someone help me with this one please Help? Slope= 9, (-5,2) Do your best to type a claim to the following question:What is the best way to have fun during the quarantine? A type of memory address that identifies the actual physical location of a specific data element inmemory is known as: why are sedimentary rocks important? How does voting differ from the house and senate? excample of things fact or none fact Help me please.. for this 7. Michael deposited $200 into his bank account. He then wrote checks for$20 and $30. Then he deposited $40 dollars more. Which of the followingrepresents the changes in the value of Michael's account?a) 200 - 20-30 + 40b) 200 - 20 + 30 + 40c) 200 + 20 - 30 - 40d) 200+ 20 - 30 + 40 what does it mean to say thay the forces acting on an object are balanced 1. Susan can get good marks easily because she always studies hard. Susan is ___________________________________________________________________________2. Those bags are very heavy. Susan cannot carry them. Those bags are not_________3. That house is very expensive. I cannot buy it. That house is not _ ___________________________4. We were extremely busy last summer. We could not take a holiday. We didn't have ________________________________________________________________________5. The milk is very hot. Mary cannot drink it quickly. The milk is not ________________________________________________________________________6. I cant go to the gym nowadays because Im very busy with my new website. I don't have enough ____________________________________________________________________7. Your bag was extremely heavy, so I couldn't pick it up. Your bag was not _____________________________________ Please helpits like 11:30 and this is due at 11:59 a visitor to the grand canyon hiked the south kaibab trail and the river treauk on one day.the next day she hiked bright angel South kaibab. 10.1River 2.7Bright angel 12.6North kaibab 22.9 Solve the inequality for z. 11 z - 9 A company charges $3.00 for every 2 pounds of oranges sold plus a $3.00 shipping fee. Based on this information, which graph best shows this relationship between the cost of oranges, y, and the number of pounds, x? f(x)=9/square root of x^2-144 jelaskan isu dan idea perjuangan yang dibangkitkan oleh akhbar dan majalah sebagai penyalur maklumat dan penyampai berita. Analyzing What language did the speaker use that points to the focus of the human experience on earth-part of Renaissance values-versus the unreachable divine presence? A painter earns $15 per hour. What is the minimum number of hours he must work to earn at least $200? Write an inequality to represent this situation and solve. Show your work.PLEASE DO STEP BY STEP BECAUSE IT NEEDS ME TO SHOW MY WORK!BEST ANSWER GETS BRAINLIEST! :) TYSM I NEED ANSWER ASAP please help me please