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Answer:

A & D

Explanation:

all of the other things are made up of atoms, not what atoms themselves are made of.  they are not large, and they make up all matter

An atom is made up of a nucleus and revolving electrons. Inside the nucleus protons and neutrons are located. Thus the components of an atom are protons, electrons and neutrons. Thus, option A is correct.

An atom is the basic unit of every substances. Atoms combine together to form molecules, molecules then forms compounds and so on.

The inner core of an atom is called nucleus which contains positively charged particles namely protons and neutral particles neutrons. There are circular paths of fixed energy surrounding the nucleus.

The circular paths around the nucleus is called orbits through which the electrons are revolving. Electrons are negatively charged particles and they neutralize equal number of positive charges.

A neutral atom have equal number of protons and electrons and this number is called its atomic number. The sum of number of protons and neutrons is called the mass number.

Hence, an atom is made up of protons, electrons, and neutrons and option A is correct.

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Answer:

B

Explanation:

The carriage has potential energy

Answer:

a)oxygen and chlorine

b) H20+NaCl= NaOH + O+ Cl

c) Cl2+ Ca(OH)2=CaOCl2+CaCl2 +HCL

Explanation:

electricity splits up the molecules for water and hydrogen displaces chlorine because its is more reactive.

Answer: Copper sulfate is also called blue vitriol, Roman vitriol, Salzburg vitriol, blue copperas or bluestone, which is an inorganic or chemical compound comprised of Copper, Sulphur and Oxygen.  It is an odorless crystalline substance, electric blue and highly toxic, which is produced in industries by treating the copper metal with hot concentrated sulfuric acid or treating its oxides with dilute sulfuric acid. It can be produced by slowly leaching low-grade copper ore in air and bacteria may be used to hasten the process.

Answer:

Symbol for tin- Sn

No. of protons =50

Explanation:

Hope this helps you

Crown me as brainliest

Answer:

The correct option is;

c. Bromine, zinc, calcium, radium

Explanation:

The atomic radii of the elements as arranged in the periodic table decreases across the period and increases down the groups

The location of each of the elements are;

Zinc: Period 4, Group 12

Calcium: Period 4, Group 2

Radium: Period 7, Group 2

Bromine: Period 4, Group 17

Therefore, the element with the largest atomic radius = Radium

The element with the smallest atomic radius = Bromine

Calcium comes before zinc on period 4, therefore, the atomic radius of calcium is larger than that of zinc

The rank of the elements from smallest to largest atomic radius is therefore;

Bromine, zinc, calcium, radium.

Answer:

c. object y is made of a different substance than x and z

Explanation:

why well i did the study island and it told me the answer why so don't ask

Answer:gravity

Explanation:

Answer:

the gravity speed up because the friction didn't speed up

Answer:

commission

Explanation:

Employers benefit from paying a commission to their employees because it means that they only pay the employee if there is a sale. ... It also improves the cash flows of the business because it means that employees are only paid when money is coming in from a sale.

If i were a maneger I would love commision For the reason that is stated above, but if I was just an employe I would rather work from tips.

We have that for the Question,it can be said that How much hydrogen chloride was used in the reaction is

From the question we are told

Magnesium (24.30g) reacts with hydrogen chloride (xg) to produce hydrogen gas(2.04g) and magnesium chloride (96.90g).

Generally the equation for the Reaction is  is mathematically given as

Mg+2HCl-----MgCl2+H2

Grams of MgCl2=[tex]\frac{96.9*24.30}{2.04}\\[/tex]
Grams of MgCl2=1154.25g

Therefore

ON cK -12

How much hydrogen chloride was used in the reaction is

x=74.42

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solids have more dens than any type of matter and I am sure btw

Answer:

Explanation:

If you are asking which state of matter is more dense of which, then this is the order.

- Liquid is more dense than Gas

- Solid is more dense than Liquid

- Gas is less dense than Air

Just to let you know, Solid is the most dense of them all, making Gas the least dense of the three.

Hope this helps! ^^

Answer: Bipalium kewense is a species of flatworm that can reproduce sexually; however, instead it usually breaks into two pieces, each of which becomes a fully functioning adult.

What is the main method of reproduction for these flatworms?

binary fission

fragmentation

sporulation

fertilization

Answer:

The correct answer should be :D). Gene on edg.

To see the number of atoms of an element in a given molecule we need to multiply stoichiometry to the number that is written on the foot of the element that is stoichiometry. The correct option is option A.

Atom is the smallest particle of any element, molecule or compound. Atom can not be further divided. Atoms contains nucleus in its center and electron that revolve around the atom in fixed orbit. Atoms can make many different molecules, just like letters can make many different words.

In the nucleus, proton and neutron are present. Electron has -1 charge while proton has +1 charge. Neutron is neutral that is it has no charge. So overall the charge of nucleus is due to only proton, not by neutron.

Therefore, the correct option is option A that is Atoms can make many different molecules, just like letters can make many different words.

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Answer:

An oxidising agent oxidises something else. Oxidation is loss of electrons (OIL RIG). That means that an oxidising agent takes electrons from that other substance.

Explanation:

Answer:

1:1

Explanation:

The ratio of metal cationic atom to non-metal anionic atom in the compound is 1:1.

This is an ionic compound.

Answer:

Therefore,900 C of charge produce produce chlorine=(71g)(1.93×105C)×(900C)=0.331g.

Explanation:

Follow me..........

Answer:

B

Explanation:

I think B is false because you should communicate with all sorts of people, in order to learn different views/sides of something.

Answer:

This question is incomplete

Explanation:

This question is incomplete but one can assume the answer from the definition of quantum mechanics. Quantum mechanics is the science that describes particles in nature at the atomic and subatomic particle (electron, proton and neutron) level. Thus it can be assumed that atoms and subatomic particles are used to broadly describe particles.

Answer:

water, lead, and wood

Explanation:

All are correct on Edg 2020

Answer:

Which material has the highest specific heat?

water

Which material has the lowest specific heat?

lead

Which material has the ability to absorb twice as much heat as aluminum when placed in the same environment of mass and temperature?

wood

Explanation:

Answer:

a positive nucleus gets smaller the negative electrons are attached closer in

Explanation:

Answer:

When you add so much solute that no more dissolves you have a SATURATED SOLUTION.

Answer:

iIt is called as point of saturation or saturated solution

Answer:

Chemical weathering because the landform changed color

Explanation:

Answer: A) Chemical Weathering

Explanation:

I took the test :)

Answer:

a state of balance between continuing processes.

Explanation:

Dynamic equilibrium only occurs in reversible reactions, and it's when the rate of the forward reaction is equal to the rate of the reverse reaction.

Answer:

cocooooooooooooooooooooooooooo

Explanation:

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Answer: The empirical formula is [tex]C_3NH_5O[/tex].

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of C = 50.69 g

Mass of N= 19.71 g

Mass of H = 7.09 g

Mass of O = 22.51 g

Step 1 : convert given masses into moles.

Moles of C = [tex]\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{50.69g}{12g/mole}=4.22moles[/tex]

Moles of N=[tex]\frac{\text{ given mass of N}}{\text{ molar mass of N}}= \frac{19.71g}{14g/mole}=1.41moles[/tex]

Moles of H=[tex]\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{7.09g}{1g/mole}=7.09moles[/tex]

Moles of O = [tex]\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{22.51g}{16g/mole}=1.41moles[/tex]

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C =[tex]\frac{4.22}{1.41}=3[/tex]

For N = [tex]\frac{1.41}{1.41}=1[/tex]

For H = [tex]\frac{7.09}{1.41}=5[/tex]

For O =[tex]\frac{1.41}{1.41}=1[/tex]

The ratio of C:N:H: O = 3:1:5:1

Hence the empirical formula is [tex]C_3NH_5O[/tex].

Answer: 3.01 * 10^35

Explanation:

500,000,000,000 * 6.02 * 10^23

There are 3 [tex]\rm \times\;10^3^5[/tex] moles of silver present in the 500,000,000,000 atoms of silver.

According to the concept of molar mass:

1 atom = [tex]\rm 6.023\;\times\;10^2^3[/tex] moles

500,000,000,000 atoms of silver can be written as:

5 [tex]\rm \times\;10^1^1[/tex] atoms of silver.

1 atom = [tex]\rm 6.023\;\times\;10^2^3[/tex] moles

5 [tex]\rm \times\;10^1^1[/tex] atoms = 5 [tex]\rm \times\;10^1^1[/tex] [tex]\times[/tex] [tex]\rm 6.023\;\times\;10^2^3[/tex] moles

5 [tex]\rm \times\;10^1^1[/tex] atoms = 30.115 [tex]\rm \times\;10^3^4[/tex] moles

= 3 [tex]\rm \times\;10^3^5[/tex] moles.

The moles of silver are present in the 500,000,000,000 atoms of silver are 3 [tex]\rm \times\;10^3^5[/tex] moles.

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Answer:

A. Kinetic Energy

Explanation:

Thermal energy is when the molecules and atoms are vibrating faster due to higher temperatures.

Kinetic energy fits this because the meaning of it is the energy of a moving object.

Since thermal energy comes from moving molecules and atoms, it is therefore a for of kinetic energy.