Which of the following is a mixture?Carbon dioxide

Iron

Sugar

Sand

Answers

Answer 1

Answer: Of those options, the mixture would be sand.

Because it does not have the same properties, composition or appearance throughout the mixture. (Sand.)

Hope this helped! c:

Related Questions

When magnesium is ignited in air, the magnesium reacts with oxygen and nitrogen.The reaction between magnesium and nitrogen is represented by the unbalanced equation below.Mg(s) + N2(g) --> Mg3N2(s)51 Balance the equation in your answer booklet for the reaction between magnesium and nitrogen, using the smallest whole-number coefficients. [1]52 In the ground state, which noble gas has atoms with the same electron configuration as a magnesium ion? [1]53 Explain, in terms of electrons, why an atom of the metal in this reaction forms an ion that has a smaller radius than its atom. [1]
Some substances cannot exist in liquid form at normal atmospheric conditions.True or False ?
Given the reaction below, which is the reduced substance?Mg + Cl2 mc006-1.jpg Mg2+ + 2Clmc006-2.jpg
How many electrons are in Al3+?
How many moles of silver chloride are produced from 15.0 mol of silver nitrate?

If a solid piece of naphthalene is heated and remains at 80 degrees C until is is completely melted, you know that 80 is the what?

Answers

Answer: The given temperature is known as melting point of naphthalene.

Explanation:

Melting point is defined as the temperature at which solid gets converted to liquid.

The temperature remains constant until all the solid has been converted to liquid. At this temperature, solid state and liquid state are present at equilibrium.

$\text{Solid state}\rightleftharpoons \text{Liquid state}$

We are given:

A solid piece of naphthalene is heated till 80°C until all the solid is melted.

Hence, the given temperature is known as melting point of naphthalene.

If a solid piece of naphthalene is heated and remains at 80 degrees Celsius until it is completely melted, you know that 80 degrees Celsius is the melting point of the solid naphthalene. This is the maximum temperature at which the chromium is in its solid form.

Need Help with my Chemistry please!!Which of the following is not an outcome of acid rain?
-altercation crust on marble statues
-plant death due to nutrients becoming toxic
-suffocation of fish
-corrosion of metal surfaces

Which of the following materials is damaged by acid rain?
-quartz
-marble
-aluminum
-glass

The ozone layer absorbs most of the incoming ____ radiation.
-infrared
-X-ray
-ultraviolet
-radio

Thank you very much~!!

Answers

Which of the following materials is damaged by acid rain? marble

The ozone layer absorbs most of the incoming ____ ultraviolet

2. If an eagle is flying at a constant speed, it is accelerating. True or
False

Answers

Answer:

False

Explanation:

Answer:

Explanation:

How many moles of sulfate ions (SO42−) are present in 1.5 mol of Al2(SO4)3?

Answers

Answer:4.5 moles of sulfate ions are present in 1.5 moles of $Al_2(SO_4)_3$ .

Explanation:

$Al_2(SO_4)_3\rightarrow 2Al^(3+)+3SO_(4)^(2-)$

1 mol of $Al_2(SO_4)_3$ gives 3 moles of sulfate ions.

Moles of sulfate ion in 1.5 moles : $1.5* 3=4.5 moles$

4.5 moles of sulfate ions are present in 1.5 moles of $Al_2(SO_4)_3$ .

Moles are the fraction of the chemical unit of the atoms, molecules, etc. The moles of sulfate ion present in 1.5 moles of aluminum sulfate is 4.5 moles.

What are moles?

Moles are the ratio of the mass of the substance to that of the molar mass of the substance. Moles are given in mol.

The reaction can be shown as:

$\rm Al_(2)(SO_(4))_(3) \rightarrow 2Al^(3+) + 3SO_(4)^(2-)$

From the reaction, it can be concluded that 1 mole of aluminum sulfate will give 3 moles of sulfate ions.

The moles of sulfate ions in 1.5 moles of aluminum sulfate will be, $1.5 * 3 = 4.5 \;\rm moles.$

Therefore, 4.5 moles of sulfate ions are present in aluminum sulfate.

Learn more about moles here:

brainly.com/question/10782582

To break a chemical bond, energy must be(1) absorbed (2) destroyed (3) produced (4) released

Answers

Answer: 1) absorbed

Explanation:

As a chemical bond is formed either by transfer of electrons or sharing of electrons, in order to break the forces of attraction among atoms, energy must be absorbed.

Energy is produced or released when a chemical bond is formed.

Energy is never destroyed, it converts from one form to another.

To break a chemical bond, energy must be $\boxed{\left( 1 \right){\text{ absorbed}}}$ .

Further explanation:

The attraction existing between atoms and molecules that facilitate the formation of various chemical compounds is termed as a chemical bond. It is formed either due to electron transference or by electron sharing between the bonded atoms. The chemical bond formed as a result of electron transfer from one atom to another is known as an ionic bond. The bond formed by the mutual sharing of electrons is called a covalent bond.

Endothermic process

The basic meaning of “endo” is “in”. These processes need energy from the surroundings, generally in the form of heat. Photosynthesis, evaporation of water, sublimation of dry ice, and melting of ice are some of the examples of endothermic processes.

Exothermic process

The general meaning of “exo” is “out”. These processes release energy from the system to the surroundings in the form of heat. Combustion of fuels, thermite reactions, nuclear reactions, and neutralization reactions are some examples of exothermic processes.

Since bond breaking is an endothermic reaction, energy must be supplied or absorbed from the surroundings to the system. Therefore, option (1) is the correct answer.

Learn more:

Which of these is an extensive property? brainly.com/question/1398514
Which of the phase changes is an exothermic change? brainly.com/question/1875234

Answer details:

Grade: High School

Chapter: Chemical reactions

Subject: Chemistry

Keywords: chemical bond, ionic bond, covalent bond, exothermic, endothermic, in, out, heat, photosynthesis, melting of ice, thermite reactions, neutralization reactions.

Do all substances have the same melting point and boiling point as water?? (i think this can be answered from the particle theory!!)