What can we say about
protons?
A. They are in the nucleus and never
leave.
B. They move around outside the nucleus.
C. They move in and out of the nucleus.

Answers

Answer 1

Answer:

A. They are in the nucleus and never leave.

Explanation:

Protons as well as neutrons are located in the nucleus of the atom.

hope this helps!


Related Questions

can any one tell me same for ALCL3 I need it urgently plzzz ​

Answers

Lets Form bonds

Al=2,8,3

Lets Write actual configuration or modern

[tex]\\ \sf\longmapsto 1s^22s^22p^63s^3[/tex]

It has valency +3Cl:-2,8,7

Let's write configuration

[tex]\\ \sf\longmapsto 1s^22s^22p^63s^23p^5[/tex]

It has valency -1

Now Criss cross valency (Refer to attachment)

We get

[tex]\\ \sf\longmapsto AlCl_3[/tex]

Help!! due tomorrow













.

Answers

Answer:

It's B. The molecules in the system have more kinetic energy than a solid.

In your conversion from Milli- to Centi- units, would you move the decimal point to the left or the right?

Answers

Answer:

one unit to the left

Explanation:

cm are 10 times mm, so to convert you have to divide by ten

Examples

100 mm = 10,0 cm

0.50 mm = 0.05 cm

What is the change of state in which a gas becomes a liquid?

Answers

Answer:

Condensation

Explanation:

Answer:

Condensation

Explanation:

When a gas changes to a liquid it is known as condensation. It happens when molecules in a gas slowly reduce their movement speed.

HOPE THIS HELPED

there are 3 isotopes of the element Gz: Gz-80,Gz-81,Gz-83. the average atomic mass of Gz is 82.74. what is the most abundant isotope of Gz? (please type the mass number only )

Answers

The most abundant isotope is Gz-83 because the average atomic mass of Gz is closer to 83.

The average atomic mass is defined as the weigthed mean of the isotopes.

The mass of the isotopes is 80, 81 and 83 uma, respectively.

As the average atomic mass (82.74uma) is closer to the atomic mass of Gz-83 than the mass of the other isotopes, you can interpretate that the most abundant isotope is Gz-83.

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cuantos gramos de soluto y solvente tendra 127 gramos de solición cuya concentración es 14% m/m ayuda para resolverlo

Answers

banetshegtsjegsgeheb

Describe the color change that would be observed in water in left hand beaker

Answers

Answer:

is there supposed to be a photo with this?

Explanation:

Which of the following statements about alcohols is false?
A. Ethanol is soluble in water.
B. Ethanol has a higher boiling point than ethane.
C. Ethanol produces hydrogen when it burns.
D. None of these

Answers

Answer:

It's C. Ethanol produces hydrogen when it burns

When burned, ethanol produces water and CO2.

will mark brainliest if correct
Which methods separate a mixture according to the size of the particles?

a
filtration and chromatography
b
distillation and chromatography
c
filtration and evaporation
d
distillation and evaporation

Answers

Answer:

filtration and chromatography

Explanation:

I hope this will help you :-)

ANSWER QUICK PLEASE!!!! 25 POINTS
Acrylonitrile and ethyl acetate have the same boiling point: 77.2ºC. In one to two sentences, explain what outcome you would expect if a mixture of these two substances were distilled.

Answers

The two substances can never be separated by distillation because distillation depends on difference in boiling point.

Distillation is a separation method that depends on difference in boiling point between two substances.

Usually, the substance having a lower boiling point is collected first as the temperature is gradually raised. The substance having a higher boiling point then follows.

However, since the two substances have the same boiling point, they can not be separated by distillation because they will be converted to vapor simultaneously thereby making separation impossible.

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Which of the following statements is not true about ecosystems?

a. A healthy ecosystem can support an unlimited number of life forms.
b. Predators play a role in balancing the earth's ecosystems.
c. People's activities can improve the health of an ecosystem.
d. The parts of an ecosystem depend on each other.

Answers

Answer:

A

Explanation:

though an ecosystem can support life forms,when they become over populated or unlimited there will be competition for food,Shelta and other basic necessities which will lead to many of these life forms dying

gots another for you guys thanks inn advance

Answers

Answer:

c. the center of curvature of the two sides of the lens

what is sublimation ​

Answers

Explanation:

Sublimation is the conversion of a substance from the solid to the gaseous state without its becoming liquid. ... Freeze-drying of food to preserve it involves sublimation of water from the food in a frozen state under high vacuum. See also vaporization; phase diagram.

A sample of brass weighing 1.203g was analyzed. The zinc in the alloy was reacted with 35.123g of HCl in excess, according to the balanced equation:
Zn (s) + 2HCl(aq) - > H2(g) + ZnCl2 (aq)
After all the zinc reacted, the mass of the remaining solution weighed 36.309g

What was the mass of H2 produced?
What mass of Zn reacted?
What was the percentage of Zn (by mass) in the alloy?

Answers

The number of moles of reactants and products can be used to obtain the mass of products formed. The results obtained are as follows;

The mass of hydrogen produced is 0.0174 gramsThe mass of zinc produced is  0.5688 gramsThe percentage by mass of zinc in the brass alloy is 47.3 %

The question says that HCl was in excess. It means that after the reaction, we will have unreacted HCl(aq) and  ZnCl2(aq) in the remaining solution.

Hence;

Mass of ZnCl2(aq) formed = 36.309g - 35.123g  = 1.186g

Number of moles ZnCl2(aq) formed = [tex]\frac{mass of ZnCl2(aq) formed}{molar mass of ZnCl2}[/tex]

[tex]\frac{1.186g}{136.286 g/mol}[/tex] = 0.0087 moles

From the reaction equation;

[tex]Zn (s) + 2HCl(aq) - > H2(g) + ZnCl2 (aq)[/tex]

To obtain the amount of Zn reacted

1 mole of Zn yields 1 mole of ZnCl2

x moles of Zn yields 0.0087 moles of ZnCl2

x = 0.0087 moles of Zn

a) 1 mole of Zn yields 1 mole of H2

0.0087 moles of Zn yields 0.0087 moles of H2

Mass of H2 = 0.0087 moles of H2 * 2 g/mol = 0.0174 grams

b)

Mass of Zn reacted =  0.0087 moles of Zn * 65.38 grams/mole = 0.5688 grams

c)

Percentage of Zn in the alloy = 0.5688 grams/1.203g * 100 = 47.3 %

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Vapor pressure of any liquid _______. A. increases with increases in temperature B. increases with decreases in temperature C. is not affected by changes in temperature D. increases with increases in volume of the liquid E. None of the Above

Answers

Answer:

increase with increases in temperature

Explanation:

please mark me brainleast

Solid solid soluton example​

Answers

Explanation:

rice and rice coatssalt and sugarsand and mudwheat flour and corn flour

What are the answers to these?

Answers

Answer:

1)physical change

Explanation:

2)chemical change

WILL MARK BRAINLEST IF CORRECT!
1) Burning toast physical or chemical
2) Cooking eggs: physical or chemical
3) Melting butter: physical or chemical
4) Removing the pulp (solid) from the orange juice using a juice strainer.: physical or chemical
5) Cutting the toast with a knife: physical or chemical
6) Digesting the food: physical or chemical

Answers

Boi what the hell boi
1) Chemical
2) Chemical
3) Chemical
4) Physical
5) Physical
6) Chemical

Come up with 2 examples of derived units from everyday life.

Answers

Answer:

answer

Explanation:

Area : Square Meters,

Volume : Cubic Meters,

Density : Kilograms per Meter Cube,

Velocity : Meters per Second Squared,

Force : Newtons (Mass multiplied by Acceleration or Mass multiplied by Displacement divided by Time squared)…..

Which of the following are decomposition reactions?
A. CH4 (9) +202 (9) - CO2 (g) + 2H20 (9)
B. N2 (9) + 3H2 (9) ► 2NH3 (9)
C. CaCO3 (s) - Cao (s) + CO2 (9)
D. 2H20 (1) ► 2H2 (9) + O2 (9)

Answers

Answer:

C and D

Explanation:

A reaction is said to be decomposed, if the reactant is broken down to liberate single element.


May someone help me with the answer to this question I’ve been stuck on it

Answers

Explanation:

No, that would be incorrect

Answer:

There arre two main parts of the atom, the nucleus and the orbital rings. The three subatomic particles are contained in each of these, the proton and neutron together in the nucleus and the electrons orbiting in the rings.

Which of these answers describes a scientific law?
(Pls)

Answers

Answer:

big ablsolty long pp

Explanation:

dong

Give an example of a non-biological chemical reaction that involves carbon. Name the process that converts a solid compound into a gas.

Answers

Answer:  The combustion of methane (CH4) with O2.

Explanation:  This is a chemical reaction involving carbon:

 CH4 + 2O2 = CO2 + 2H2O

What is the approximate mass of one electron?

Answers

Answer:

9.1093837015 × 10^−31 kg

Very small mass

what happens to the food dye in hot water?

Answers

Answer:

The food coloring mixes through the hot water faster than it mixes with the cold water. The reason for this is because  in hot water, the water molecules have more energy and are moving faster than the molecules of cold water. This makes it way more easier for the dye to get mixed throughout the hot water.

Explanation:

A pan containing 20.0 grams of water was allowed to cool from a temperature of 95.0 °C. If the amount of heat released is 1,200 joules, what is the approximate final temperature of the water?
75 °C
78 °C
81 °C
87 °C

Answers

Answer:

81 °C

Explanation:

This is a calorimetry question so a few things you will need for this. The calorimetry equation q=mcΔT & the specific heat of water (4.2J/g•°C). Other definitions are:

q = heat added/released by a sample

m = mass of sample

c=specific heat of sample

ΔT = change in temperature

from here we can rearrange the equation to state:

q/(mc) = ΔT

1200J/((20.0g)(4.2J/g•°C)) = ΔT

14°C = ΔT

If the starting temperature was 95.0°C and we know that the temperature was cooled by 14°C then the final temperature of the water would be 81.

Answer:

C. 81 c

Explanation:

took the test :)

Chemical changes can change which properties of a substance?
Group of answer choices

Reactivity

Color

Malleability

All of the above

Answers

Answer:

» Reactivity and color

Explanation:

though color is very minor answer because it also relates to a physical property.

[tex].[/tex]

Freezing water cracking limestone

a
Chemical Change
b
Physical Change

Answers

Answer:

Freezing water and cracking limestone are physical changes.

If you burn a citronella candle near your picnic will it keep mosquitoes away

Answers

Answer:

Thanks!!!

Explanation:

Answer:

true

Explanation:

(Physical Science)

Which group of metals includes elements with one valence electron? (1 point)

A. alkaline earth metals
B. rare earth metals
C. alkali metals
D. transition metals​

Answers

Answer:

C

Explanation:

alkali metals are the Group I elements, which have 1 electron in their valence shells

Answer:

Alkali metals are the elements which have only one valence electron in their outermost or ultimate shell.

Explanation:

Alkaline Earth metals have 2 valence electron in their outermost shell and readily give up their 2 electron to achieve stability.

Rare Earth Metals have 3 valence electron in their outermost shell and they have high magnetic moments and divert range of magnetic structure.

Alkali Earth metals have 1 valence electron.

Transition metals generally have 2 valence electron .

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