list three properties if the elements that are useful in sorting the elements.

Answers

Answer 1

Hello There!

Melting point - The temperature at which the substance melts or turns liquid
Boiling point - The temperature at which a substance boils or turns into gas
Density - Mass per unit.

Hope This Helps You!
Good Luck :)

- Hannah ❤

Answer 2

Three properties of elements that can be used in sorting elements are; density, refractive index and melting/boiling point.

The properties that can be used to sort elements are intensive properties. These are properties that do not depend on the amount of substance present.

They are unique to each element and can serve as a kind of finger print to identify an element.

Three of such properties are;density, refractive index and melting/boiling point.

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Related Questions

What is a common characteristic of the transitions elements?

Answers

The next to outermost electron shell begins to fill up.

Blank water is a term used to describe water that is safe to drink

Answers

safe water is the answer

identify two mass balance equations for NaOCl
a. [Na+]
b. [OCl-]
c. [Na+] + [OCl-]
d. [OCl-] + [HOCl]
e. [Na+] + [HOCl]

Answers

Upon review of the provided chemical equations, each one is found to be balanced, with an equal number of each type of atom on both sides of the equation.

When determining if each chemical equation is balanced, we can confirm the balance by ensuring that the same number of each type of atom appears on both sides of the arrow. Here are the equations examined for balance:

a. 2Na(s) + O₂(g)
ightarrow 2Na₂O(s) - Each side has 4 Na atoms and 1 O₂ molecule, so this is balanced.b. CH4(g) + 2O₂(g)
ightarrow CO₂(g) + 2H₂O(l) - Each side has 1 C atom, 4 H atoms, and 4 O atoms, making it balanced.c. AgNO3(aq) + 2KCl(aq)
ightarrow AgCl(s) + KNO3(aq) - We have 1 Ag atom, 1 N atom, 3 O atoms, 2 K atoms, and 2 Cl atoms on both sides, so it is also balanced.

Name and DESCRIBE the four forces that are at work within the nucleus of an atom

Answers

There are four forces (Electromagnetic, Strong, Weak, and Gravity) that are responsible for the behavior of the particles and thus keep the atom together.

What is the STM in science

Answers

If you mean STEM, S is science, T is technology, and M is math.

Final answer:

STM in science stands for Scanning Tunneling Microscope, a device that allows visualization of atomic-level details on surfaces, revealing individual atoms and contributing to nanotechnology research.

Explanation:

In science, STM refers to a Scanning Tunneling Microscope, an instrument for imaging surfaces at the atomic level. An STM uses a sharp tip that scans a surface at a constant potential. As the tip moves close to surface atoms, electrons tunnel from the surface to the tip, creating a current that varies based on the distance between the tip and the surface. This tunneling-electron current is monitored and used to construct an image of the specimen with atomic-scale resolution. With an STM, scientists can literally see individual atoms, such as those on a sheet of gold, and structures like carbon nanotubes, providing profound insights into the physical world at the nanoscale.

When determining an element's identity, what is the most important subatomic part to examine?

A) electrons
B) neutrons
C) valence electrons
D) protons

Answers

D protons. the identity of an element is determined by the total number of protons present in the nucleus of an atom contained in that partial element.
._.

pls help will give crown to best answer

Answers

I dont know for sure but i think its A. adding heat energy to the reactants if not then D. using a highly concentrated solution of the reactants

The answer is a cause when you add heat too th reactants it will form a new reaction hope that helps

Which electrons participate in chemical bonding?
a. core electrons
b. valence electrons
c. the innermost electrons
d. any electrons

Answers

B.) Valence Electrons. The nucleus of the valence electrons attracts and pulls atoms together.

Answer:

Explanation:

I took the test

When you blow dry your hair is it physical or chemical change

Answers

When you blow dry your hair you will get a physical change

A physical change. The hair does not undergo any compositional changes.

The greeks believed that fire was a state of matter. how did atomists describe fire?

Answers

Atomists before Leucippus and Democritus described fire as being one of the four origins of matter, but Democritus and Leucippus described fire as being just likeeverything else and being composed of atoms.

Answer: atomists before Leucippus and Democritus described fire as being one of the four origins of matter, but Democritus and Leucippus described fire as being just likeeverything else and being composed of atoms.

Explanation:

In this forest, trees block much of the sunlight from reaching the ground. The branches of trees grow up and out to reach as much sunlight as they can. Which challenge of life does this example represent?

Answers

This example represents the challenge of survival of the fittest. In this situation, the trees have a distinct advantage due to their above average height. This puts them in the best position to gain the resources that they need to survive, most notably, the sun. The smaller plants, however, do not have this advantage, and lose out to the trees.

What are some catchy projects titles for the question, "What liquids cause the most tooth decay?"

Answers

Do you have tooth decay? Then lets find which liquids are doing that the most

in a chemical reaction 48.6 grams of magnesium reacts with 32.0 grams of oxygen to form magnesium oxide how many grams of magnesium oxide would be produced from this reaction

A) 82.6 grams

B) 80.6 grams

C) 16.6 grams

D) 18.6 grams

Answers

B. 80.6 the mass of the product is equal to the mass of the reactants

In the chemical reaction below, calcium (Ca) and water (H2O) react to form calcium hydroxide (Ca(OH)2) and hydrogen gas (H2).

Ca (s) + 2H2O (l) → Ca(OH)2 (aq) + H2 (g)

Calcium and water are the reactants in this chemical reaction, whereas calcium hydroxide and hydrogen gas are the products that are formed. Once the reaction reaches completion,

Finish The Sentence...

A.
the products of the reaction will have changed back into the reactants.

B.
the total mass of the products will be greater than the original mass of the reactants.

C.
the total mass of the products will be equal to the original mass of the reactants.

D.
the total mass of the products will be less than the original mass of the reactants.

Answers

c
because the mass never changes, it is always equal on both sides.

why is the solubility of a neutral organic compound unaltered by exposure to aqueous acid or base?

Answers

Neutral organic compounds are those whose pH are neither acidic nor basic. Having said so, the pH is approximately at 7. These neutral organic compounds are known not to react with the Bronsted lowry acids and Bronsted lowry bases.

Because it does not form any reaction, it can be concluded that the neutral organic compound's solubility cannot be changed or altered.

What is the volume of 220 grams of an object with a density 55g/cm3

Answers

Density = mass / volume

55 = 220 / x

55x = 220

x = 4

So, the volume is 4

The volume of 220 grams of an object having density of 55 g/cm³ is 4 cm³.

What is the relation between Mass and Volume ?

Mass and volume of a body are related as follows -

M = D x V

D - density of element

M - mass of element

V - volume of element

Given is an object that has mass of 220 grams and density of 55 g/cm³.

Mass and volume are related as -

M = D x V

Rewrite the relation as follows -

V = M / D

Mass of metal object [M] = 220 g

Density [D] = 55 g/cm³

Substitute the values -

V = 220/55

V = 4 cm³

Therefore, the volume of 220 grams of an object having density of 55 g/cm³ is 4 cm³

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a glass marble has a mass of 18.5 g and a volume of 6.45 cm^3

Answers

Well since you're giving me the mass and volume, I'm going to assume that you're looking for the density.

Density = mass/volume

D = 18.5/6.45

D = 2.86822...grams/cm^3

The density of the glass marble is 2.87 [tex]g/cm^3[/tex].

Given the following data:

Mass of glass marble = 18.5 gramsVolume of glass marble = 6.45 [tex]cm^3[/tex]

In this exercise, you're required to determine the density of the glass marble.

Density can be defined as mass per unit volume of an object.

Mathematically, the density of an object is given by the formula;

[tex]Density = \frac{Mass}{Volume}[/tex]

Substituting the given parameters into the formula, we have;

[tex]Density = \frac{18.5}{6.45}[/tex]

Density = 2.87 [tex]g/cm^3[/tex]

Therefore, the density of the glass marble is 2.87 [tex]g/cm^3[/tex].

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What is the Complete Ionic Equation?

Answers

2Li+ + I- +Pb+2 + 2NO3- + ➡PbI2 (s) + 2Li+ + NO3-

A 0.5376 g sample of an unknown compound is found to contain 0.3044 g of carbonate. Could this compound be calcium carbonate?

Answers

Calcium carbonate has the formula: CaCO3
From the periodic table:
mass of calcium = 40 grams
mass of carbon = 12 grams
mass of oxygen = 16 grams
Therefore,
molar mass of CaCO3 = 40 + 12 + 3(16) = 100 grams
molar mass of carbonate = 12 + 3(16) = 60 grams

One mole of calcium carbonate contains one mole of carbonate. Therefore, 100 grams of CaCO3 contains 60 grams of CO3.
If the 0.5376 grams of the unknown substance is CaCO3, then the amount of carbonate will be:
amount of carbonate = (0.5376*60) / 100 = 0.32256 grams

Based on the above calculations, the sample is not CaCO3

If the weight of displaced liquid and the weight of an object are the same, the object will

Answers

Archimedes principle states that the upward force that is exerted on a body immersed in a fluid. whether full or partial is equal to weight of the fluid that the body displaces

Answer:

float, but be submerged

Explanation:

Anhydrous calcium chloride removes water vapor from the air inside a container having an air-tight seal called a desiccator. Explain

Answers

Anhydrous calcium chloride is hygroscopic and can attract water from the atmosphere. After anhydrous calcium chloride gets water, it will become hydrous calcium chloride. This allows the anhydrous calcium chloride to reduce water vapor continuously in the air-tight sealed container. It can be used to protect substance that can react with water or preserve food by lowering the humidity.

How many moles of carbon are in 2 moles of caffeine

Answers

I think 16 I hope its right

science question down below hurry

Answers

I think the answer is C bcuz I did Biology and it mentioned it in the book. I am also doing chemsity!

Describe the energy transformation that occurs in a digital clock?

Answers

it is electrical to mechanical

Answer:

electrical to mechanical

Explanation:

please help
balance this equation
Cu(NO3)2➡️CuO+NO2+O2

Answers

Balanced equation:
2 CU(NO3)2 = 2 CUO + 4 NO2 + O2
Reaction type: decomposition

Final answer:

The balanced chemical equation for the decomposition of copper(II) nitrate into copper(II) oxide, nitrogen dioxide, and oxygen is 2 Cu(NO3)2 ➔ 2 CuO + 4 NO2 + O2. This illustrates the conservation of mass by ensuring equal numbers of each type of atom on both sides of the equation.

Explanation:

The question you've asked pertains to balancing the chemical equation Cu(NO3)2 ➔ CuO + NO2 + O2. This process involves ensuring that the number of atoms for each element is the same on both sides of the equation.

To balance this equation, we start with the given substances and adjust the coefficients (the numbers in front of the chemical formulas) to make sure the atoms are balanced. After several steps of balancing, we arrive at the balanced equation:

2 Cu(NO3)2 ➔ 2 CuO + 4 NO2 + O2

This equation indicates that 2 moles of copper(II) nitrate decompose to form 2 moles of copper(II) oxide, 4 moles of nitrogen dioxide, and 1 mole of oxygen gas. The balancing process takes into account the conservation of mass, which states that atoms are neither created nor destroyed in a chemical reaction.

How many carbon atoms are in four molecules of glucose, or 4C6 H12 O6?

Answers

4 x 6 = 24 because of the coefficient 4 and the subscript 6

It gives you the answer! The 6 after the C (carbon) tells you how many of that element there are in the molecule. So 6 is your answer!
Hope this helps :)

science question down below

Answers

I would go with D. Oxygen is released as a gas after water is spilt.

This may not be right.
I hope this helps!
Have a Good Afternoon!
Best of Luck!

why do you think different liquids have different freezing points

Answers

I think that different liquids have different freezing points because every liquid consists of different atoms and different things that make up the atom causing them to have different freezing points.

PLEASE ANSWER ASAP! DOUBLE CHECK THE ANSWER!
Which of the following best describes the forces when there are different-sized forces from opposite directions acting on an object?

Positive
Negative
Unbalanced
Gravitational

Answers

I believe the answer would be C, unbalanced.
Since the forces are in opposite directions, and aren't the same size, the answer would be unbalanced.

which of the following questions is most testable through a scientific experimentation
A. which gelatin takes longer to set: gelatin with a fruit or gelatin without fruit
B. which fruit looks more attractive in gelatin: bananas or apples ?
C. which taste better: gelatin with fruit or gelatin without fruit?
D. which fruit do more people buy in one year: bananas or apples ?

Answers

Question A is more testable through a scientific experiment because you have a specific thing you are trying to find out, "which gelatin takes longer to set".

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